APPEN

County Level Emissions an

File 08 A App B TOC Alm2013 p1-6.indd 1 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Appendix B: County Level Emissions and Air Quality by Air Basin Introduction ....................................................................................... Emission Inventory ............................................................................ 2012 Emissions ............................................................................. VOCs ........................................................................................... NOx ...........................................................................................

 SOx ...........................................................................................

 PM2.5 ...........................................................................................

 PM10 ...........................................................................................

 Diesel PM ..................................................................................... Ammonia (NH3) ...........................................................................

 Air Quality .......................................................................................... Great Basin Valleys Air Basin ....................................................... Lake County Air Basin ................................................................. Lake Tahoe Air Basin .................................................................... Mojave Desert Air Basin .............................................................. Mountain Counties Air Basin ...................................................... North Central Coast Air Basin ..................................................... North Coast Air Basin .................................................................. Northeast Plateau Air Basin ......................................................... Sacramento Valley Air Basin ........................................................ Salton Sea Air Basin ..................................................................... San Diego Air Basin ..................................................................... San Francisco Bay Area Air Basin ................................................ San Joaquin Valley Air Basin. ....................................................... South Central Coast Air Basin ..................................................... South Coast Air Basin ..................................................................

File 08 A App B TOC Alm2013 p1-6.indd 2 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

 County Emission Trends and Forecasts B-1 2012 Emissions ................................................................. B-2 VOCs ................................................................................. B-3 NOx....................................................................................

 B-4 SOx ....................................................................................

 B-5 PM2.5 .................................................................................

 B-6 PM10 ..................................................................................

 B-7 Diesel PM .......................................................................... B-8 Ammonia (NH3) ...............................................................

 Great Basin Valleys Air Basin Air Quality Trend Data:  B-9 Alpine County ................................................................... B-10 Inyo County ...................................................................... B-11 Mono County .................................................................... Lake County Air Basin Air Quality Trend Data:  B-12 Lake County ...................................................................... Lake Tahoe Air Basin Air Quality Trend Data:  B-13 El Dorado County ............................................................. B-14 Placer County .................................................................... Mojave Desert Air Basin Air Quality Trend Data:  B-15 Kern County ...................................................................... B-16 Los Angeles County .......................................................... B-17 Riverside County ............................................................... B-18 San Bernardino County .................................................... Mountain Counties Air Basin Air Quality Trend Data:  B-19 Amador County ................................................................. B-20 Calaveras County .............................................................. B-21 El Dorado County ............................................................. B-22 Mariposa County .............................................................. B-23 Nevada County ................................................................. B-24 Placer County .................................................................... B-25 Plumas County .................................................................. B-26 Sierra County .................................................................... B-27 Tuolumne County ............................................................. North Central Coast Air Basin Air Quality Trend Data: B-28 Monterey County ..............................................................

List of 

File 08 A App B TOC Alm2013 p1-6.indd 3 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

 B-29 San Benito County ............................................................ B-30 Santa Cruz County ........................................................... North Coast Air Basin Air Quality Trend Data:  B-31 Del Norte County ............................................................. B-32 Humboldt County ............................................................. B-33 Mendocino County ........................................................... B-34 Sonoma County ................................................................ B-35 Trinity County ................................................................... Northeast Plateau Air Basin Air Quality Trend Data:  B-36 Lassen County ................................................................... B-37 Modoc County .................................................................. B-38 Siskiyou County ................................................................ Sacramento Valley Air Basin Air Quality Trend Data:  B-39 Butte County ..................................................................... B-40 Colusa County ................................................................... B-41 Glenn County .................................................................... B-42 Placer County .................................................................... B-43 Sacramento County ........................................................... B-44 Shasta County ................................................................... B-45 Solano County................................................................... B-46 Sutter County .................................................................... B-47 Tehama County ................................................................. B-48 Yolo County ....................................................................... B-49 Yuba County ...................................................................... Salton Sea Air Basin Air Quality Trend Data:  B-50 Imperial County ................................................................ B-51 Riverside County ............................................................... San Diego Air Basin Air Quality Trend Data: B-52 San Diego County ............................................................. San Francisco Bay Area Air Basin Air Quality Trend Data:  B-53 Alameda County ................................................................ B-54 Contra Costa County ........................................................ B-55 Marin County .................................................................... B-56 Napa County ..................................................................... B-57 San Francisco County .......................................................

List of Tables 

File 08 A App B TOC Alm2013 p1-6.indd 4 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

 B-58 San Mateo County ............................................................ B-59 Santa Clara County ........................................................... B-60 Solano County................................................................... B-61 Sonoma County ................................................................ San Joaquin Valley Air Basin Air Quality Trend Data:  B-62 Fresno County ................................................................... B-63 Kern County ...................................................................... B-64 Kings County .................................................................... B-65 Madera County ................................................................. B-66 Merced County ................................................................. B-67 San Joaquin County .......................................................... B-68 Stanislaus County ............................................................. B-69 Tulare County .................................................................... South Central Coast Air Basin Air Quality Trend Data:  B-70 San Luis Obispo County ................................................... B-71 Santa Barbara County ....................................................... B-72 Ventura County ................................................................. South Coast Air Basin Air Quality Trend Data: B-73 Los Angeles County .......................................................... B-74 Orange County .................................................................. B-75 Riverside County ............................................................... B-76 San Bernardino County ....................................................

List of Tables 

File 08 A App B TOC Alm2013 p1-6.indd 5 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

(This page intenti

File 08 A App B TOC Alm2013 p1-6.indd 6 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Introduction

This appendix contains criteria pollutant emission trends and forecasts and air quality trend data for each of California’s 15 air basins. The emissions data are summarized by county or county portion within the air basin. Emissions data are included for the ozone precursors NOx and VOC, directly emitted PM10 and PM2.5, SOx, DPM, 

and NH3. The values represent the total tons of pollutant emissions 

per average day, listed every five years, from 2000 to 2035. The list of high emitting facilities has been removed. Facility emissions are available online at www.arb.ca.gov/app/emsinv/facinfo/facinfo.php.The air quality trend statistics for each county or county portion are also organized alphabetically, by air basin. The time period covered is 1992 through 2011 for ozone, PM10, CO, NO2, and SO2, and 1999 

through 2011 for PM2.5. Tables for some areas include blanks, indicating that no monitoring data are available or data are incomplete 

for a given statistic. In a number of cases, tables are completely blank. These blank tables are included for completeness, but the lack of data is noted on the tables.Air quality statistics can fluctuate from year-to-year because of the influence of meteorology and/or changes in emissions. However, the statistics can also vary because of a change in monitoring site. The peak and maximum value air quality statistics reflect the highest value for the statistic at any site in the area. As a result, the statistic may not reflect the same site during the entire trend period. For example, the maximum 8-hour average CO concentrations in Imperial County in the Salton Sea Air Basin were below the level of the national standard from 1992 through 1993. In 1994, however, the concentrations show a significant increase, and the national standard was violated. The CO concentrations in this air basin did not suddenly increase during 1994. Instead, monitoring began at a new site in Calexico, and the concentrations at the new site were higher than at the exist

File 08 B App B Ems Alm2013 p7-40.indd 7 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-1 

County Air Basin VOC NAlameda San Francisco Bay Area 53 7

Alpine Great Basin Valleys 1Amador Mountain Counties 5

Butte Sacramento Valley 17 1Calaveras Mountain Counties 5Colusa Sacramento Valley 6 1Contra Costa San Francisco Bay Area 46 5Del Norte North Coast 2

Del Norte Outer Contintl Shelf-100 Miles 0

Del Norte Outer Contintl Shelf-24 Miles 0

El Dorado Lake Tahoe 3El Dorado Mountain Counties 9Fresno San Joaquin Valley 68 6

Glenn Sacramento Valley 7 Humboldt North Coast 13 1Humboldt Outer Contintl Shelf-100 Miles 0Humboldt Outer Contintl Shelf-24 Miles 0Imperial Salton Sea 20 2Inyo* Great Basin Valleys 4 

Kern Mojave Desert 11 3

Kern San Joaquin Valley 80 7

Kings San Joaquin Valley 22 1

Lake Lake County 8

Lassen Northeast Plateau 6 Los Angeles Mojave Desert 16 1Los Angeles Outer Contintl Shelf-100 Miles 0Los Angeles Outer Contintl Shelf-24 Miles 1 1Los Angeles South Coast 270 3

County Emission Trends and Forecasts2012 Emissions (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 8 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-1 (cont)

County Air Basin VOC NMadera San Joaquin Valley 15 1

Marin Outer Contintl Shelf-100 Miles 0

Marin Outer Contintl Shelf-24 Miles 0

Marin San Francisco Bay Area 11 1

Mariposa Mountain Counties 6Mendocino North Coast 9Mendocino Outer Contintl Shelf-100 Miles 0Mendocino Outer Contintl Shelf-24 Miles 0Merced San Joaquin Valley 34 3

Modoc Northeast Plateau 3 Mono* Great Basin Valleys 2 Monterey North Central Coast 29 3Monterey Outer Contintl Shelf-100 Miles 0

Monterey Outer Contintl Shelf-24 Miles 1 1Napa San Francisco Bay Area 8

Nevada Mountain Counties 7Orange Outer Contintl Shelf-100 Miles 0

Orange Outer Contintl Shelf-24 Miles 0

Orange South Coast 93 7

Placer Lake Tahoe 1

Placer Mountain Counties 3

Placer Sacramento Valley 16 1Plumas Mountain Counties 5 Riverside Mojave Desert 3 1

Riverside Salton Sea 13 2Riverside South Coast 51 6Sacramento Sacramento Valley 55 5

San Benito North Central Coast 4

County Emission Trends and Forecasts2012 Emissions (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 9 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin VOC NSan Bernardino Mojave Desert 36 1San Bernardino South Coast 52 6

San Diego Outer Contintl Shelf-100 Miles 0San Diego Outer Contintl Shelf-24 Miles 0San Diego San Diego 126 1San Francisco Outer Contintl Shelf-100 Miles 1 1

San Francisco Outer Contintl Shelf-24 Miles 1 1

San Francisco San Francisco Bay Area 23 3San Joaquin San Joaquin Valley 41 5San Luis Obispo Outer Contintl Shelf-100 Miles 0 1

San Luis Obispo Outer Contintl Shelf-24 Miles 0San Luis Obispo South Central Coast 17 1

San Mateo Outer Contintl Shelf-100 Miles 0

San Mateo Outer Contintl Shelf-24 Miles 0

San Mateo San Francisco Bay Area 26 3Santa Barbara Outer Contintl Shelf-100 Miles 1 1

Santa Barbara Outer Contintl Shelf-24 Miles 2 4

Santa Barbara South Central Coast 27 2Santa Clara San Francisco Bay Area 67 6Santa Cruz North Central Coast 15 1Santa Cruz Outer Contintl Shelf-100 Miles 0

Santa Cruz Outer Contintl Shelf-24 Miles 0

Shasta Sacramento Valley 15 2Sierra Mountain Counties 2

Siskiyou Northeast Plateau 11 1

Solano Sacramento Valley 8 1

Solano San Francisco Bay Area 15 2

Sonoma North Coast 7

Table B-1 (cont)County Emission Trends and Forecasts2012 Emissions (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 10 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin VOC NSonoma Outer Contintl Shelf-100 Miles 0

Sonoma Outer Contintl Shelf-24 Miles 0Sonoma San Francisco Bay Area 18 1Stanislaus San Joaquin Valley 40 3Sutter Sacramento Valley 8 1Tehama Sacramento Valley 7 Trinity North Coast 2Tulare San Joaquin Valley 57 3Tuolumne Mountain Counties 15 Ventura Outer Contintl Shelf-100 Miles 0Ventura Outer Contintl Shelf-24 Miles 1 1Ventura South Central Coast 33 3Yolo Sacramento Valley 11 1Yuba Sacramento Valley 7

Table B-1 (cont)County Emission Trends and Forecasts2012 Emissions (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 11 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Alameda San Francisco Bay Area 97 71 

Alpine Great Basin Valleys 11

Amador Mountain Counties 65

Butte Sacramento Valley 23 20 

Calaveras Mountain Counties 87

Colusa Sacramento Valley 86

Contra Costa San Francisco Bay Area 93 59 

Del Norte North Coast 33

Del Norte Outer Contintl Shelf-100 Miles 00

Del Norte Outer Contintl Shelf-24 Miles 00

El Dorado Lake Tahoe 44

El Dorado Mountain Counties 13 11 Fresno San Joaquin Valley 92 83 

Glenn Sacramento Valley 99

Humboldt North Coast 19 16 

Humboldt Outer Contintl Shelf-100 Miles 00

Humboldt Outer Contintl Shelf-24 Miles 00

Imperial Salton Sea 29 25 

Inyo Great Basin Valleys 55

Kern Mojave Desert 16 13 

Kern San Joaquin Valley 116 98 

Kings San Joaquin Valley 27 27 

Lake Lake County 12 10 

Lassen Northeast Plateau 87

Los Angeles Mojave Desert 24 18 

Los Angeles Outer Contintl Shelf-100 Miles 00

Los Angeles Outer Contintl Shelf-24 Miles 11

Los Angeles South Coast 587 406 

Table B-2 

County Emission Trends and ForecastsVOC (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 12 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-2 (cont)

County Air Basin 2000 2005 Madera San Joaquin Valley 19 18 

Marin Outer Contintl Shelf-100 Miles 00

Marin Outer Contintl Shelf-24 Miles 00

Marin San Francisco Bay Area 20 15 

Mariposa Mountain Counties 77

Mendocino North Coast 14 11 

Mendocino Outer Contintl Shelf-100 Miles 00

Mendocino Outer Contintl Shelf-24 Miles 00

Merced San Joaquin Valley 43 42 

Modoc Northeast Plateau 44

Mono Great Basin Valleys 32

Monterey North Central Coast 39 34 

Monterey Outer Contintl Shelf-100 Miles 00

Monterey Outer Contintl Shelf-24 Miles 01

Napa San Francisco Bay Area 17 11 

Nevada Mountain Counties 11 9

Orange Outer Contintl Shelf-100 Miles 00

Orange Outer Contintl Shelf-24 Miles 00

Orange South Coast 192 132 

Placer Lake Tahoe 22

Placer Mountain Counties 54

Placer Sacramento Valley 22 19 

Plumas Mountain Counties 76

Riverside Mojave Desert 64

Riverside Salton Sea 24 19 

Riverside South Coast 80 66 

Sacramento Sacramento Valley 86 67 

San Benito North Central Coast 65

County Emission Trends and ForecastsVOC (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 13 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 San Bernardino Mojave Desert 55 46 

San Bernardino South Coast 97 74 

San Diego Outer Contintl Shelf-100 Miles 00

San Diego Outer Contintl Shelf-24 Miles 00

San Diego San Diego 198 160 

San Francisco Outer Contintl Shelf-100 Miles 11San Francisco Outer Contintl Shelf-24 Miles 01San Francisco San Francisco Bay Area 41 30 

San Joaquin San Joaquin Valley 60 51 

San Luis Obispo Outer Contintl Shelf-100 Miles 00San Luis Obispo Outer Contintl Shelf-24 Miles 00San Luis Obispo South Central Coast 28 21 

San Mateo Outer Contintl Shelf-100 Miles 00

San Mateo Outer Contintl Shelf-24 Miles 00

San Mateo San Francisco Bay Area 51 35 

Santa Barbara Outer Contintl Shelf-100 Miles 11Santa Barbara Outer Contintl Shelf-24 Miles 12Santa Barbara South Central Coast 34 32 

Santa Clara San Francisco Bay Area 129 92 

Santa Cruz North Central Coast 22 19 

Santa Cruz Outer Contintl Shelf-100 Miles 00

Santa Cruz Outer Contintl Shelf-24 Miles 00

Shasta Sacramento Valley 24 19 

Sierra Mountain Counties 22

Siskiyou Northeast Plateau 13 12 

Solano Sacramento Valley 13 10 Solano San Francisco Bay Area 24 18 

Sonoma North Coast 10 8

Table B-2 (cont)County Emission Trends and ForecastsVOC (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 14 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Sonoma Outer Contintl Shelf-100 Miles 00

Sonoma Outer Contintl Shelf-24 Miles 00

Sonoma San Francisco Bay Area 31 23 

Stanislaus San Joaquin Valley 55 49 

Sutter Sacramento Valley 13 9

Tehama Sacramento Valley 10 8

Trinity North Coast 33

Tulare San Joaquin Valley 74 72 

Tuolumne Mountain Counties 18 17 

Ventura Outer Contintl Shelf-100 Miles 00

Ventura Outer Contintl Shelf-24 Miles 01

Ventura South Central Coast 57 43 

Yolo Sacramento Valley 16 13 

Yuba Sacramento Valley 97

Table B-2 (cont)County Emission Trends and ForecastsVOC (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 15 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-3 

County Air Basin 2000 2005 Alameda San Francisco Bay Area 137 108 

Alpine Great Basin Valleys 00

Amador Mountain Counties 24 5

Butte Sacramento Valley 29 27 Calaveras Mountain Counties 44

Colusa Sacramento Valley 15 14 Contra Costa San Francisco Bay Area 117 77 

Del Norte North Coast 22

Del Norte Outer Contintl Shelf-100 Miles 44

Del Norte Outer Contintl Shelf-24 Miles 00

El Dorado Lake Tahoe 33

El Dorado Mountain Counties 98

Fresno San Joaquin Valley 116 106 

Glenn Sacramento Valley 14 13 

Humboldt North Coast 26 21 

Humboldt Outer Contintl Shelf-100 Miles 55

Humboldt Outer Contintl Shelf-24 Miles 56

Imperial Salton Sea 45 42 

Inyo Great Basin Valleys 44

Kern Mojave Desert 58 55 

Kern San Joaquin Valley 138 130 

Kings San Joaquin Valley 31 29 

Lake Lake County 76

Lassen Northeast Plateau 86

Los Angeles Mojave Desert 30 22 

Los Angeles Outer Contintl Shelf-100 Miles 87

Los Angeles Outer Contintl Shelf-24 Miles 19 22 

Los Angeles South Coast 710 545 

County Emission Trends and ForecastsNOx (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 16 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Madera San Joaquin Valley 29 29 Marin Outer Contintl Shelf-100 Miles 11

Marin Outer Contintl Shelf-24 Miles 56

Marin San Francisco Bay Area 18 14 

Mariposa Mountain Counties 22

Mendocino North Coast 16 13 

Mendocino Outer Contintl Shelf-100 Miles 33

Mendocino Outer Contintl Shelf-24 Miles 67

Merced San Joaquin Valley 52 50 

Modoc Northeast Plateau 54

Mono Great Basin Valleys 32

Monterey North Central Coast 63 46 

Monterey Outer Contintl Shelf-100 Miles 22

Monterey Outer Contintl Shelf-24 Miles 10 13 

Napa San Francisco Bay Area 15 12 

Nevada Mountain Counties 12 10 Orange Outer Contintl Shelf-100 Miles 22

Orange Outer Contintl Shelf-24 Miles 56

Orange South Coast 174 131 

Placer Lake Tahoe 22

Placer Mountain Counties 10 10 Placer Sacramento Valley 22 22 

Plumas Mountain Counties 76

Riverside Mojave Desert 24 21 

Riverside Salton Sea 45 45 

Riverside South Coast 100 103 

Sacramento Sacramento Valley 91 76 

San Benito North Central Coast 13 11 

Table B-3 (cont)County Emission Trends and ForecastsNOx (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 17 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 San Bernardino Mojave Desert 204 193 

San Bernardino South Coast 122 108 

San Diego Outer Contintl Shelf-100 Miles 44

San Diego Outer Contintl Shelf-24 Miles 56

San Diego San Diego 202 155 

San Francisco Outer Contintl Shelf-100 Miles 12 12 

San Francisco Outer Contintl Shelf-24 Miles 10 11 

San Francisco San Francisco Bay Area 56 44 

San Joaquin San Joaquin Valley 93 85 

San Luis Obispo Outer Contintl Shelf-100 Miles 8 10 

San Luis Obispo Outer Contintl Shelf-24 Miles 23San Luis Obispo South Central Coast 31 22 San Mateo Outer Contintl Shelf-100 Miles 34

San Mateo Outer Contintl Shelf-24 Miles 7 9 

San Mateo San Francisco Bay Area 61 45 

Santa Barbara Outer Contintl Shelf-100 Miles 12 14 

Santa Barbara Outer Contintl Shelf-24 Miles 32 41 

Santa Barbara South Central Coast 43 37 

Santa Clara San Francisco Bay Area 123 94 

Santa Cruz North Central Coast 27 23 

Santa Cruz Outer Contintl Shelf-100 Miles 11

Santa Cruz Outer Contintl Shelf-24 Miles 44

Shasta Sacramento Valley 37 33 

Sierra Mountain Counties 11

Siskiyou Northeast Plateau 17 15 

Solano Sacramento Valley 23 19 

Solano San Francisco Bay Area 35 28 

Sonoma North Coast 76

Table B-3 (cont)County Emission Trends and ForecastsNOx (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 18 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Sonoma Outer Contintl Shelf-100 Miles 11

Sonoma Outer Contintl Shelf-24 Miles 44

Sonoma San Francisco Bay Area 29 23 

Stanislaus San Joaquin Valley 52 48 

Sutter Sacramento Valley 21 19 

Tehama Sacramento Valley 18 17 

Trinity North Coast 33

Tulare San Joaquin Valley 56 52 

Tuolumne Mountain Counties 76

Ventura Outer Contintl Shelf-100 Miles 33

Ventura Outer Contintl Shelf-24 Miles 11 13 

Ventura South Central Coast 55 44 

Yolo Sacramento Valley 28 24 

Yuba Sacramento Valley 99

Table B-3 (cont)County Emission Trends and ForecastsNOx (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 19 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Alameda San Francisco Bay Area 55

Alpine Great Basin Valleys 00Amador Mountain Counties 00

Butte Sacramento Valley 11

Calaveras Mountain Counties 00

Colusa Sacramento Valley 11

Contra Costa San Francisco Bay Area 42 31 

Del Norte North Coast 00

Del Norte Outer Contintl Shelf-100 Miles 22

Del Norte Outer Contintl Shelf-24 Miles 00

El Dorado Lake Tahoe 00

El Dorado Mountain Counties 00

Fresno San Joaquin Valley 43

Glenn Sacramento Valley 00

Humboldt North Coast 10

Humboldt Outer Contintl Shelf-100 Miles 23

Humboldt Outer Contintl Shelf-24 Miles 33

Imperial Salton Sea 11

Inyo Great Basin Valleys 11

Kern Mojave Desert 55

Kern San Joaquin Valley 11 3

Kings San Joaquin Valley 00

Lake Lake County 11

Lassen Northeast Plateau 10

Los Angeles Mojave Desert 00

Los Angeles Outer Contintl Shelf-100 Miles 11

Los Angeles Outer Contintl Shelf-24 Miles 8 10 

Los Angeles South Coast 49 45 

Table B-4 County Emission Trends and ForecastsSOx (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 20 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Madera San Joaquin Valley 11

Marin Outer Contintl Shelf-100 Miles 00

Marin Outer Contintl Shelf-24 Miles 34

Marin San Francisco Bay Area 00

Mariposa Mountain Counties 00

Mendocino North Coast 11

Mendocino Outer Contintl Shelf-100 Miles 11

Mendocino Outer Contintl Shelf-24 Miles 34

Merced San Joaquin Valley 11

Modoc Northeast Plateau 00

Mono Great Basin Valleys 00

Monterey North Central Coast 11

Monterey Outer Contintl Shelf-100 Miles 11

Monterey Outer Contintl Shelf-24 Miles 68

Napa San Francisco Bay Area 00

Nevada Mountain Counties 11

Orange Outer Contintl Shelf-100 Miles 01

Orange Outer Contintl Shelf-24 Miles 34

Orange South Coast 22

Placer Lake Tahoe 00

Placer Mountain Counties 00

Placer Sacramento Valley 00

Plumas Mountain Counties 10

Riverside Mojave Desert 00

Riverside Salton Sea 01

Riverside South Coast 11

Sacramento Sacramento Valley 11

San Benito North Central Coast 00

Table B-4 (cont)County Emission Trends and ForecastsSOx (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 21 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 San Bernardino Mojave Desert 87San Bernardino South Coast 12

San Diego Outer Contintl Shelf-100 Miles 00

San Diego Outer Contintl Shelf-24 Miles 22

San Diego San Diego 33

San Francisco Outer Contintl Shelf-100 Miles 34

San Francisco Outer Contintl Shelf-24 Miles 45San Francisco San Francisco Bay Area 33San Joaquin San Joaquin Valley 55

San Luis Obispo Outer Contintl Shelf-100 Miles 46San Luis Obispo Outer Contintl Shelf-24 Miles 11San Luis Obispo South Central Coast 88San Mateo Outer Contintl Shelf-100 Miles 12

San Mateo Outer Contintl Shelf-24 Miles 45

San Mateo San Francisco Bay Area 11

Santa Barbara Outer Contintl Shelf-100 Miles 68Santa Barbara Outer Contintl Shelf-24 Miles 19 24 

Santa Barbara South Central Coast 34Santa Clara San Francisco Bay Area 22

Santa Cruz North Central Coast 22

Santa Cruz Outer Contintl Shelf-100 Miles 00

Santa Cruz Outer Contintl Shelf-24 Miles 22

Shasta Sacramento Valley 11

Sierra Mountain Counties 00

Siskiyou Northeast Plateau 11

Solano Sacramento Valley 00

Solano San Francisco Bay Area 16 18 

Sonoma North Coast 00

Table B-4 (cont)County Emission Trends and ForecastsSOx (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 22 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Sonoma Outer Contintl Shelf-100 Miles 00

Sonoma Outer Contintl Shelf-24 Miles 22

Sonoma San Francisco Bay Area 00

Stanislaus San Joaquin Valley 21

Sutter Sacramento Valley 00

Tehama Sacramento Valley 00

Trinity North Coast 00

Tulare San Joaquin Valley 31

Tuolumne Mountain Counties 11

Ventura Outer Contintl Shelf-100 Miles 11

Ventura Outer Contintl Shelf-24 Miles 68

Ventura South Central Coast 22

Yolo Sacramento Valley 11

Yuba Sacramento Valley 00

Table B-4 (cont)County Emission Trends and ForecastsSOx (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 23 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Alameda San Francisco Bay Area 14 11 

Alpine Great Basin Valleys 11

Amador Mountain Counties 42

Butte Sacramento Valley 76

Calaveras Mountain Counties 11

Colusa Sacramento Valley 43

Contra Costa San Francisco Bay Area 17 14 

Del Norte North Coast 11

Del Norte Outer Contintl Shelf-100 Miles 00

Del Norte Outer Contintl Shelf-24 Miles 00

El Dorado Lake Tahoe 11

El Dorado Mountain Counties 33

Fresno San Joaquin Valley 25 23 

Glenn Sacramento Valley 44

Humboldt North Coast 66

Humboldt Outer Contintl Shelf-100 Miles 00

Humboldt Outer Contintl Shelf-24 Miles 00

Imperial Salton Sea 44 43 

Inyo Great Basin Valleys 129 22 

Kern Mojave Desert 7 8 

Kern San Joaquin Valley 17 16 

Kings San Joaquin Valley 76

Lake Lake County 32

Lassen Northeast Plateau 43

Los Angeles Mojave Desert 46

Los Angeles Outer Contintl Shelf-100 Miles 00

Los Angeles Outer Contintl Shelf-24 Miles 12

Los Angeles South Coast 52 49 

Table B-5 County Emission Trends and ForecastsPM2.5 (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 24 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-5 (cont)

County Air Basin 2000 2005 Madera San Joaquin Valley 55

Marin Outer Contintl Shelf-100 Miles 00

Marin Outer Contintl Shelf-24 Miles 00

Marin San Francisco Bay Area 33

Mariposa Mountain Counties 44

Mendocino North Coast 42

Mendocino Outer Contintl Shelf-100 Miles 00

Mendocino Outer Contintl Shelf-24 Miles 01

Merced San Joaquin Valley 88

Modoc Northeast Plateau 22

Mono Great Basin Valleys 22

Monterey North Central Coast 87

Monterey Outer Contintl Shelf-100 Miles 00

Monterey Outer Contintl Shelf-24 Miles 11

Napa San Francisco Bay Area 32

Nevada Mountain Counties 22

Orange Outer Contintl Shelf-100 Miles 00

Orange Outer Contintl Shelf-24 Miles 01

Orange South Coast 14 13 

Placer Lake Tahoe 11

Placer Mountain Counties 11

Placer Sacramento Valley 44

Plumas Mountain Counties 33

Riverside Mojave Desert 12

Riverside Salton Sea 34

Riverside South Coast 10 10 

Sacramento Sacramento Valley 14 12 

San Benito North Central Coast 22

County Emission Trends and ForecastsPM2.5 (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 25 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 San Bernardino Mojave Desert 20 30 

San Bernardino South Coast 13 12 

San Diego Outer Contintl Shelf-100 Miles 00

San Diego Outer Contintl Shelf-24 Miles 00

San Diego San Diego 26 25 

San Francisco Outer Contintl Shelf-100 Miles 11San Francisco Outer Contintl Shelf-24 Miles 11San Francisco San Francisco Bay Area 54San Joaquin San Joaquin Valley 13 11 San Luis Obispo Outer Contintl Shelf-100 Miles 11San Luis Obispo Outer Contintl Shelf-24 Miles 00San Luis Obispo South Central Coast 54San Mateo Outer Contintl Shelf-100 Miles 00

San Mateo Outer Contintl Shelf-24 Miles 11

San Mateo San Francisco Bay Area 65

Santa Barbara Outer Contintl Shelf-100 Miles 11Santa Barbara Outer Contintl Shelf-24 Miles 33Santa Barbara South Central Coast 44Santa Clara San Francisco Bay Area 15 12 

Santa Cruz North Central Coast 44

Santa Cruz Outer Contintl Shelf-100 Miles 00

Santa Cruz Outer Contintl Shelf-24 Miles 00

Shasta Sacramento Valley 66

Sierra Mountain Counties 11

Siskiyou Northeast Plateau 55

Solano Sacramento Valley 22

Solano San Francisco Bay Area 54

Sonoma North Coast 22

Table B-5 (cont)County Emission Trends and ForecastsPM2.5 (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 26 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Sonoma Outer Contintl Shelf-100 Miles 00

Sonoma Outer Contintl Shelf-24 Miles 00

Sonoma San Francisco Bay Area 75

Stanislaus San Joaquin Valley 98

Sutter Sacramento Valley 43

Tehama Sacramento Valley 33

Trinity North Coast 11

Tulare San Joaquin Valley 16 16 

Tuolumne Mountain Counties 99

Ventura Outer Contintl Shelf-100 Miles 00

Ventura Outer Contintl Shelf-24 Miles 11

Ventura South Central Coast 76

Yolo Sacramento Valley 65

Yuba Sacramento Valley 22

Table B-5 (cont)County Emission Trends and ForecastsPM2.5 (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 27 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-6 

County Air Basin 2000 2005 Alameda San Francisco Bay Area 30 26 

Alpine Great Basin Valleys 22

Amador Mountain Counties 65

Butte Sacramento Valley 18 18 

Calaveras Mountain Counties 43

Colusa Sacramento Valley 13 12 

Contra Costa San Francisco Bay Area 30 25 

Del Norte North Coast 44

Del Norte Outer Contintl Shelf-100 Miles 00

Del Norte Outer Contintl Shelf-24 Miles 00

El Dorado Lake Tahoe 11

El Dorado Mountain Counties 99

Fresno San Joaquin Valley 93 80 

Glenn Sacramento Valley 11 10 

Humboldt North Coast 16 15 

Humboldt Outer Contintl Shelf-100 Miles 00

Humboldt Outer Contintl Shelf-24 Miles 01

Imperial Salton Sea 309 305 

Inyo Great Basin Valleys 818 142 

Kern Mojave Desert 19 19 

Kern San Joaquin Valley 56 48 

Kings San Joaquin Valley 31 25 

Lake Lake County 66

Lassen Northeast Plateau 11 10 

Los Angeles Mojave Desert 15 26 

Los Angeles Outer Contintl Shelf-100 Miles 00

Los Angeles Outer Contintl Shelf-24 Miles 12

Los Angeles South Coast 93 89 

County Emission Trends and ForecastsPM10 (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 28 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Madera San Joaquin Valley 22 18 

Marin Outer Contintl Shelf-100 Miles 00

Marin Outer Contintl Shelf-24 Miles 01

Marin San Francisco Bay Area 76

Mariposa Mountain Counties 66

Mendocino North Coast 86

Mendocino Outer Contintl Shelf-100 Miles 00

Mendocino Outer Contintl Shelf-24 Miles 11

Merced San Joaquin Valley 38 31 

Modoc Northeast Plateau 10 10 

Mono Great Basin Valleys 14 14 

Monterey North Central Coast 26 26 

Monterey Outer Contintl Shelf-100 Miles 00

Monterey Outer Contintl Shelf-24 Miles 11

Napa San Francisco Bay Area 65

Nevada Mountain Counties 77

Orange Outer Contintl Shelf-100 Miles 00

Orange Outer Contintl Shelf-24 Miles 01

Orange South Coast 27 26 

Placer Lake Tahoe 11

Placer Mountain Counties 55

Placer Sacramento Valley 9 10 

Plumas Mountain Counties 10 10 

Riverside Mojave Desert 7 7 

Riverside Salton Sea 14 14 

Riverside South Coast 29 29 

Sacramento Sacramento Valley 30 29 

San Benito North Central Coast 99

Table B-6 (cont)County Emission Trends and ForecastsPM10 (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 29 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 San Bernardino Mojave Desert 63 84 San Bernardino South Coast 30 30 

San Diego Outer Contintl Shelf-100 Miles 00

San Diego Outer Contintl Shelf-24 Miles 00

San Diego San Diego 76 80 

San Francisco Outer Contintl Shelf-100 Miles 11

San Francisco Outer Contintl Shelf-24 Miles 11San Francisco San Francisco Bay Area 11 10 

San Joaquin San Joaquin Valley 39 33 

San Luis Obispo Outer Contintl Shelf-100 Miles 11San Luis Obispo Outer Contintl Shelf-24 Miles 00San Luis Obispo South Central Coast 16 15 

San Mateo Outer Contintl Shelf-100 Miles 00

San Mateo Outer Contintl Shelf-24 Miles 11

San Mateo San Francisco Bay Area 13 11 

Santa Barbara Outer Contintl Shelf-100 Miles 11Santa Barbara Outer Contintl Shelf-24 Miles 33Santa Barbara South Central Coast 14 13 

Santa Clara San Francisco Bay Area 33 28 

Santa Cruz North Central Coast 99

Santa Cruz Outer Contintl Shelf-100 Miles 00

Santa Cruz Outer Contintl Shelf-24 Miles 00

Shasta Sacramento Valley 14 14 

Sierra Mountain Counties 44

Siskiyou Northeast Plateau 17 17 

Solano Sacramento Valley 66

Solano San Francisco Bay Area 13 11 

Sonoma North Coast 54

Table B-6 (cont)County Emission Trends and ForecastsPM10 (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 30 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Sonoma Outer Contintl Shelf-100 Miles 00

Sonoma Outer Contintl Shelf-24 Miles 00

Sonoma San Francisco Bay Area 14 11 Stanislaus San Joaquin Valley 34 29 

Sutter Sacramento Valley 11 9 

Tehama Sacramento Valley 89

Trinity North Coast 76

Tulare San Joaquin Valley 47 42 

Tuolumne Mountain Counties 14 14 

Ventura Outer Contintl Shelf-100 Miles 00

Ventura Outer Contintl Shelf-24 Miles 11

Ventura South Central Coast 17 16 

Yolo Sacramento Valley 23 22 

Yuba Sacramento Valley 66

Table B-6 (cont)County Emission Trends and ForecastsPM10 (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 31 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Alameda San Francisco Bay Area 33

Alpine Great Basin Valleys 00Amador Mountain Counties 00

Butte Sacramento Valley 11

Calaveras Mountain Counties 00

Colusa Sacramento Valley 00

Contra Costa San Francisco Bay Area 11

Del Norte North Coast 00

Del Norte Outer Contintl Shelf-100 Miles 00

Del Norte Outer Contintl Shelf-24 Miles 00

El Dorado Lake Tahoe 00

El Dorado Mountain Counties 00

Fresno San Joaquin Valley 33

Glenn Sacramento Valley 00

Humboldt North Coast 00

Humboldt Outer Contintl Shelf-100 Miles 00

Humboldt Outer Contintl Shelf-24 Miles 01

Imperial Salton Sea 11

Inyo Great Basin Valleys 00

Kern Mojave Desert 11

Kern San Joaquin Valley 34

Kings San Joaquin Valley 11

Lake Lake County 00

Lassen Northeast Plateau 00

Los Angeles Mojave Desert 00

Los Angeles Outer Contintl Shelf-100 Miles 00

Los Angeles Outer Contintl Shelf-24 Miles 12

Los Angeles South Coast 14 13 

Table B-7 County Emission Trends and ForecastsDiesel PM (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 32 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Madera San Joaquin Valley 11

Marin Outer Contintl Shelf-100 Miles 00

Marin Outer Contintl Shelf-24 Miles 01

Marin San Francisco Bay Area 00

Mariposa Mountain Counties 00

Mendocino North Coast 00

Mendocino Outer Contintl Shelf-100 Miles 00

Mendocino Outer Contintl Shelf-24 Miles 11

Merced San Joaquin Valley 22

Modoc Northeast Plateau 00

Mono Great Basin Valleys 00

Monterey North Central Coast 11

Monterey Outer Contintl Shelf-100 Miles 00

Monterey Outer Contintl Shelf-24 Miles 11

Napa San Francisco Bay Area 00

Nevada Mountain Counties 00

Orange Outer Contintl Shelf-100 Miles 00

Orange Outer Contintl Shelf-24 Miles 01

Orange South Coast 32

Placer Lake Tahoe 00

Placer Mountain Counties 00

Placer Sacramento Valley 00

Plumas Mountain Counties 00

Riverside Mojave Desert 11

Riverside Salton Sea 11

Riverside South Coast 23

Sacramento Sacramento Valley 22

San Benito North Central Coast 00

Table B-7 (cont)County Emission Trends and ForecastsDiesel PM (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 33 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 San Bernardino Mojave Desert 23San Bernardino South Coast 23

San Diego Outer Contintl Shelf-100 Miles 00

San Diego Outer Contintl Shelf-24 Miles 00

San Diego San Diego 43

San Francisco Outer Contintl Shelf-100 Miles 11

San Francisco Outer Contintl Shelf-24 Miles 11San Francisco San Francisco Bay Area 11San Joaquin San Joaquin Valley 32

San Luis Obispo Outer Contintl Shelf-100 Miles 11San Luis Obispo Outer Contintl Shelf-24 Miles 00San Luis Obispo South Central Coast 11San Mateo Outer Contintl Shelf-100 Miles 00

San Mateo Outer Contintl Shelf-24 Miles 11

San Mateo San Francisco Bay Area 11

Santa Barbara Outer Contintl Shelf-100 Miles 11Santa Barbara Outer Contintl Shelf-24 Miles 33Santa Barbara South Central Coast 11Santa Clara San Francisco Bay Area 22

Santa Cruz North Central Coast 00

Santa Cruz Outer Contintl Shelf-100 Miles 00

Santa Cruz Outer Contintl Shelf-24 Miles 00

Shasta Sacramento Valley 11

Sierra Mountain Counties 00

Siskiyou Northeast Plateau 00

Solano Sacramento Valley 11

Solano San Francisco Bay Area 00

Sonoma North Coast 00

Table B-7 (cont)County Emission Trends and ForecastsDiesel PM (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 34 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

County Air Basin 2000 2005 Sonoma Outer Contintl Shelf-100 Miles 00

Sonoma Outer Contintl Shelf-24 Miles 00

Sonoma San Francisco Bay Area 10

Stanislaus San Joaquin Valley 11

Sutter Sacramento Valley 11

Tehama Sacramento Valley 11

Trinity North Coast 00

Tulare San Joaquin Valley 22

Tuolumne Mountain Counties 00

Ventura Outer Contintl Shelf-100 Miles 00

Ventura Outer Contintl Shelf-24 Miles 11

Ventura South Central Coast 11

Yolo Sacramento Valley 11

Yuba Sacramento Valley 00

Table B-7 (cont)County Emission Trends and ForecastsDiesel PM (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 35 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-8 

County Air Basin 2000 2005 Alameda San Francisco Bay Area 55

Alpine Great Basin Valleys 00Amador Mountain Counties 11

Butte Sacramento Valley 66

Calaveras Mountain Counties 11

Colusa Sacramento Valley 87

Contra Costa San Francisco Bay Area 55

Del Norte North Coast 55

Del Norte Outer Contintl Shelf-100 Miles 00

Del Norte Outer Contintl Shelf-24 Miles 00

El Dorado Lake Tahoe 00

El Dorado Mountain Counties 11

Fresno San Joaquin Valley 64 67 

Glenn Sacramento Valley 76

Humboldt North Coast 44

Humboldt Outer Contintl Shelf-100 Miles 00

Humboldt Outer Contintl Shelf-24 Miles 00

Imperial Salton Sea 43 43 

Inyo Great Basin Valleys 11

Kern Mojave Desert 32

Kern San Joaquin Valley 48 52 

Kings San Joaquin Valley 37 39 

Lake Lake County 00

Lassen Northeast Plateau 22

Los Angeles Mojave Desert 76

Los Angeles Outer Contintl Shelf-100 Miles 00

Los Angeles Outer Contintl Shelf-24 Miles 00

Los Angeles South Coast 43 42 

County Emission Trends and ForecastsAmmonia (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 36 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-8 (cont)

County Air Basin 2000 2005 Madera San Joaquin Valley 14 15 

Marin Outer Contintl Shelf-100 Miles 00

Marin Outer Contintl Shelf-24 Miles 00

Marin San Francisco Bay Area 33

Mariposa Mountain Counties 11

Mendocino North Coast 11

Mendocino Outer Contintl Shelf-100 Miles 00

Mendocino Outer Contintl Shelf-24 Miles 00

Merced San Joaquin Valley 46 50 

Modoc Northeast Plateau 22

Mono Great Basin Valleys 00

Monterey North Central Coast 9 9 Monterey Outer Contintl Shelf-100 Miles 00

Monterey Outer Contintl Shelf-24 Miles 00

Napa San Francisco Bay Area 11

Nevada Mountain Counties 11

Orange Outer Contintl Shelf-100 Miles 00

Orange Outer Contintl Shelf-24 Miles 00

Orange South Coast 17 18 

Placer Lake Tahoe 00

Placer Mountain Counties 11

Placer Sacramento Valley 12

Plumas Mountain Counties 11

Riverside Mojave Desert 22

Riverside Salton Sea 22

Riverside South Coast 26 21 

Sacramento Sacramento Valley 15 16 

San Benito North Central Coast 22

County Emission Trends and ForecastsAmmonia (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 37 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-8 (cont)

County Air Basin 2000 2005 San Bernardino Mojave Desert 88San Bernardino South Coast 37 27 

San Diego Outer Contintl Shelf-100 Miles 00

San Diego Outer Contintl Shelf-24 Miles 00

San Diego San Diego 16 15 

San Francisco Outer Contintl Shelf-100 Miles 00

San Francisco Outer Contintl Shelf-24 Miles 00San Francisco San Francisco Bay Area 22San Joaquin San Joaquin Valley 52 54 

San Luis Obispo Outer Contintl Shelf-100 Miles 00San Luis Obispo Outer Contintl Shelf-24 Miles 00San Luis Obispo South Central Coast 44San Mateo Outer Contintl Shelf-100 Miles 00

San Mateo Outer Contintl Shelf-24 Miles 00

San Mateo San Francisco Bay Area 33

Santa Barbara Outer Contintl Shelf-100 Miles 00Santa Barbara Outer Contintl Shelf-24 Miles 00Santa Barbara South Central Coast 33Santa Clara San Francisco Bay Area 77

Santa Cruz North Central Coast 11

Santa Cruz Outer Contintl Shelf-100 Miles 00

Santa Cruz Outer Contintl Shelf-24 Miles 00

Shasta Sacramento Valley 33

Sierra Mountain Counties 00

Siskiyou Northeast Plateau 33

Solano Sacramento Valley 33

Solano San Francisco Bay Area 22

Sonoma North Coast 44

County Emission Trends and ForecastsAmmonia (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 38 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-8 (cont)

County Air Basin 2000 2005 Sonoma Outer Contintl Shelf-100 Miles 00

Sonoma Outer Contintl Shelf-24 Miles 00

Sonoma San Francisco Bay Area 44

Stanislaus San Joaquin Valley 42 46 

Sutter Sacramento Valley 54

Tehama Sacramento Valley 33

Trinity North Coast 00

Tulare San Joaquin Valley 77 85 

Tuolumne Mountain Counties 33

Ventura Outer Contintl Shelf-100 Miles 00

Ventura Outer Contintl Shelf-24 Miles 00

Ventura South Central Coast 88

Yolo Sacramento Valley 54

Yuba Sacramento Valley 22

County Emission Trends and ForecastsAmmonia (tons/day, annual average)

File 08 B App B Ems Alm2013 p7-40.indd 39 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

(This page intenti

File 08 B App B Ems Alm2013 p7-40.indd 40 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Air Quality

This section contains air quality trend data for each county in California’s 15 air basins, organized alphabetically, by air basin. It is important to note that some counties are located in more than one air basin. For these counties, the air quality data are for that portion of the county located in each air basin. The time period covered is 1992 through 2011 for ozone, PM10, CO, NO2, and SO2; and 1999 

through 2011 for PM2.5. In some areas, no monitoring data are available or the data are incomplete. Tables for these areas are included, 

but the lack of data is noted on the tables.This section provides information on the 1-hour ozone design value concentration, and the 8-hour design value concentration. In addition, we have included the annual maximum 1-hour value along with the annual 4th high 8-hour value which is the value used for the 8-hour design value calculation.In addition, national statistics for PM2.5 and PM10 are included. 

National PM2.5 standards use standard conditions for data reporting.

Additional information about the data in the following tables can be found in the Introduction section to this Appendix and in the Interpreting the Emissions and Air Quality Statistics section in Chapter 1.

File 08 C App B AQ Alm2013 p41-80.indd 41 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-9 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour8-Hour Design ValueMaximum 1-Hour Concentration1-Hour Design ValueDays Above Nat. 8-Hour Standard

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour ConcentrationMaximum Annual Average98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

Great Basin Valleys Air BasinCounty: Alpine

OZONE PM10 PM2.5 CO NO2 SO2

No Monitorin

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.070 0.071 0.084 0.068 0.078 0.077 0.082 0.078-Hour Design Value 0.060 0.068 0.064 0.076 0.074 0.079 0.07Maximum 1-Hour Concentration 0.080 0.080 0.101 0.085 0.095 0.084 0.092 0.091-Hour Design Value 0.080 0.080 0.098 0.098 0.095 0.087 0.087 0.08Days Above Nat. 8-Hour Standard 1 2 17 0 8 6 14 1

Peak 8-Hour Indicator 3.5 3.2 3.1 2.9Maximum 1-Hour Concentration 11.0 5.0 5.0 4.0Maximum 8-Hour Concentration 3.8 2.8 2.8 2.0Days Above Nat. 8-Hour Standard 0000Maximum 1-Hour Concentration1-Hour Design ValueMaximum Annual AverageMaximum 24-Hour Concentration 526 578 1381 3929 2383 2229 1116 290Maximum Annual Average 37.3 42.5 43.6 69.9 47.3 36.8 53.8 55.

98th Percentile of 24-Hr Conc. 24-Hour Design Value Maximum Annual Average Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Inyo

No Monitoring 

Table B-10 

No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 42 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-11 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.091 0.075 0.082 0.080 0.077 0.076 0.068 

8-Hour Design Value 0.081 0.078 0.082 0.079 0.079 0.077 0.073 

Maximum 1-Hour Concentration 0.150 0.090 0.120 0.110 0.090 0.092 0.079 1-Hour Design Value 0.140 0.140 0.130 0.100 0.100 0.092 0.091 Days Above Nat. 8-Hour Standard 19 3 145650 

Peak 8-Hour Indicator 5.0 4.7 4.6 4.0 4.0 3.9 

Maximum 1-Hour Concentration 8.0 13.0 9.0 10.0 6.0 8.2 6.7 

Maximum 8-Hour Concentration 4.4 4.5 5.4 5.4 3.0 3.4 3.0 

Days Above Nat. 8-Hour Standard 0000000 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 493 981 92 122 158 112 106 13Maximum Annual Average 36.3 59.4 29.9 26 22.1 26.5 20.8 12.

98th Percentile of 24-Hr Conc. 24-Hour Design ValueMaximum Annual AverageAnnual Design Value

PM10 PM2.5 CO NO2 SO2 No Monitoring 

Great Basin Valleys Air BasinCounty: Mono

No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 43 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-12 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.051 0.062 0.065 0.057 0.060 0.058 0.055 0.078-Hour Design Value 0.055 0.057 0.059 0.061 0.060 0.058 0.057 0.06Maximum 1-Hour Concentration 0.080 0.080 0.090 0.070 0.090 0.080 0.080 0.091-Hour Design Value 0.080 0.080 0.080 0.080 0.080 0.080 0.080 0.08Days Above Nat. 8-Hour Standard 0000001

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 22 30 21 30 26 18 35 4Maximum Annual Average 11.8 11.3 10.9 10.7 10.2 8.6 7.8 12.98th Percentile of 24-Hr Conc. 24-Hour Design Value Maximum Annual Average Annual Design Value 

PM10 PM2.5 CO NO2 SO2 No Monitoring 

Lake County Air BasinCounty: Lake

No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 44 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-13 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 

8-Hour Design ValueMaximum 1-Hour Concentration 1-Hour Design Value Days Above Nat. 8-Hour Standard 

Peak 8-Hour Indicator 3.9 3.9 3.9 Maximum 1-Hour Concentration 9.0 11.6 9.5 

Maximum 8-Hour Concentration 4.3 4.7 2.9 

Days Above Nat. 8-Hour Standard 0 0 0 

Maximum 1-Hour Concentration 1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 24 50Maximum Annual Average 3.6 21.798th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

OZONE PM10 PM2.5 CO NO2 SO2

County: PlacerTable B-14 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.078 0.066 0.073 0.071 0.069 0.066 0.073 0.068-Hour Design Value 0.075 0.061 0.070 0.071 0.068 0.069 0.06

Maximum 1-Hour Concentration 0.100 0.090 0.086 0.092 0.083 0.095 0.081 0.091-Hour Design Value 0.090 0.080 0.083 0.086 0.083 0.083 0.081 0.08Days Above Nat. 8-Hour Standard 5022001

Peak 8-Hour Indicator 10.2 8.7 8.3 7.8 7.0 5.6 5.0 2.Maximum 1-Hour Concentration 15.0 13.0 11.3 9.3 10.4 7.7 7.5 3.Maximum 8-Hour Concentration 9.9 7.5 7.1 6.3 5.1 3.8 4.3 2.Days Above Nat. 8-Hour Standard 1000000Maximum 1-Hour Concentration 60 60 57 59 61 51 52 61-Hour Design Value 48 47 47 47 4Maximum Annual Average 11 11 12 11 11 11 10 1

Maximum 24-Hour Concentration 52 92 78 71 72 55 59 4Maximum Annual Average 5.9 26 27.1 22.5 23.4 21.6 23.4 19.98th Percentile of 24-Hr Conc. 21.24-Hour Design Value Maximum Annual Average 8.Annual Design Value 

PM10 PM2.5 CO NO2 SO2 No Monitoring 

Lake Tahoe Air BasinCounty: El Dorado

No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 45 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-15 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour Standard

OZONE PM10 PM2.5 CO NO2 SO2

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.121 0.115 0.105 0.130 0.099 0.090 0.103 0.078-Hour Design Value 0.110 0.113 0.113 0.108 0.103 0.098 0.097 0.08

Maximum 1-Hour Concentration 0.170 0.160 0.143 0.185 0.131 0.123 0.164 0.091-Hour Design Value 0.160 0.160 0.160 0.185 0.138 0.129 0.137 0.13Days Above Nat. 8-Hour Standard 83 57 63 101 43 19 36 

Peak 8-Hour Indicator 6.5 6.2 6.1 5.8 5.3 4.8 4.4 4.Maximum 1-Hour Concentration 9.0 8.0 9.1 7.5 6.8 5.9 5.4 7.Maximum 8-Hour Concentration 5.4 5.9 5.6 5.1 4.7 4.0 3.6 5.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 160 110 97 140 80 71 77 81-Hour Design Value 73 73 73 66 61 57 5

Maximum Annual Average 17 20 18 19 15 14 16 1

Maximum 24-Hour Concentration 68 70 97 61 67 54 80 8Maximum Annual Average 32.6 34.9 29.3 25.5 29 29.4 23.6 28.98th Percentile of 24-Hr Conc. 23.24-Hour Design Value Maximum Annual Average 11.Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Los Angeles

No Monitoring 

Table B-16 

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.102 0.102 0.101 0.104 0.092 0.102 0.098-Hour Design Value 0.099 0.100 0.097 0.099 0.09Maximum 1-Hour Concentration 0.130 0.124 0.142 0.130 0.119 0.134 0.111-Hour Design Value 0.130 0.130 0.142 0.123 0.123 0.126 0.11Days Above Nat. 8-Hour Standard 21 82 79 78 51 71 7

Maximum 1-Hour Concentration 70 60 120 75 75 82 81-Hour Design Value 5Maximum Annual Average 8 8 9 10 11 1

Maximum 24-Hour Concentration 65 64 116 235 92 130 165 4Maximum Annual Average 21.9 21.2 15.7 18.5 16.9 18.6 16.2 19.98th Percentile of 24-Hr Conc. 24-Hour Design Value Maximum Annual Average Annual Design Value 

No Monitoring No Monitoring 

Mojave Desert Air BasinCounty: Kern

File 08 C App B AQ Alm2013 p41-80.indd 46 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-17 

Maximum 1-Hour Concentration 30.0 30.0 67.0 15.0 16.0 35.0 13.0 26.1-Hour Design Value 10.0 10.0 9.0 8.0 10.0 9.0 9.Maximum 24-Hour Concentration 12.2 10.4 11.7 8.3 6.8 7.0 6.1 6.Maximum Annual Average 2.5 3.4 4.1 3.2 1.6 1.5 1.2 1.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.140 0.137 0.141 0.137 0.133 0.118 0.131 0.108-Hour Design Value 0.147 0.139 0.138 0.133 0.131 0.124 0.127 0.11Maximum 1-Hour Concentration 0.230 0.200 0.188 0.240 0.175 0.187 0.202 0.131-Hour Design Value 0.230 0.200 0.190 0.210 0.182 0.175 0.167 0.16Days Above Nat. 8-Hour Standard 150 142 158 122 124 117 100 11

Peak 8-Hour Indicator 4.3 3.8 3.8 2.9 7.4 2.3 2.4 2.Maximum 1-Hour Concentration 6.0 5.0 7.9 6.1 8.4 4.1 3.9 10.Maximum 8-Hour Concentration 3.4 3.5 3.2 2.7 7.5 3.1 2.2 3.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 240 360 138 118 87 107 196 111-Hour Design Value 60 85 83 78 77 81 8

Maximum Annual Average 26 26 27 23 21 20 22 2

Maximum 24-Hour Concentration 80 79 140 85 138 85 70 10Maximum Annual Average 39.4 35.2 42.1 14.7 28.9 27.3 27.8 32.98th Percentile of 24-Hr Conc. 20.24-Hour Design Value 

Maximum Annual Average 11.

Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: San BernardinoTable B-18 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.106 0.091 

8-Hour Design Value 0.101 0.101 Maximum 1-Hour Concentration 0.138 0.140 1-Hour Design Value 0.130 0.131 

Days Above Nat. 8-Hour Standard 59 30 

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour ConcentrationMaximum Annual Average98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

PM10 PM2.5 CO NO2 SO2 No Monitoring 

Mojave Desert Air BasinCounty: Riverside

No Monitoring No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 47 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-19 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour Indicator 2.5 2.2 2.0 2.0 1.7 1.5 1.4 1.Maximum 1-Hour Concentration 3.0 3.0 9.3 9.3 2.2 2.8 2.5 2.Maximum 8-Hour Concentration 2.4 3.0 1.8 2.6 1.5 1.4 1.4 1.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.099 0.094 0.100 0.085 0.105 0.098-Hour Design Value 0.097 0.093 0.096 0.09Maximum 1-Hour Concentration 0.121 0.146 0.138 0.140 0.134 0.121-Hour Design Value 0.121 0.121 0.130 0.130 0.130 0.12Days Above Nat. 8-Hour Standard 72 41 47 13 49 5

Peak 8-Hour Indicator 0.7 1.0 0.9 0.9 0.9 0.

Maximum 1-Hour Concentration 1.5 2.1 1.7 2.1 1.8 1.Maximum 8-Hour Concentration 0.7 1.8 0.9 1.7 0.9 0.Days Above Nat. 8-Hour Standard 00000

Maximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 44 118 36 112 35 6Maximum Annual Average 23.6 21 17.8 19.9 15.8 20.98th Percentile of 24-Hr Conc. 28.24-Hour Design Value Maximum Annual Average 11.Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Calaveras

No Monitoring 

Table B-20 

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.090 0.088 0.095 0.092 0.094 0.084 0.107 0.098-Hour Design Value 0.091 0.091 0.093 0.090 0.095 0.09Maximum 1-Hour Concentration 0.120 0.110 0.123 0.146 0.127 0.135 0.143 0.121-Hour Design Value 0.120 0.120 0.120 0.119 0.123 0.127 0.128 0.12Days Above Nat. 8-Hour Standard 36 23 41 31 41 14 35 4

Maximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 30Maximum Annual Average 20.498th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

No Monitoring No Monitoring 

Mountain Counties Air BasinCounty: Amador

No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 48 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-21 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.098 0.093 0.102 0.104 0.104 0.092 0.115 0.108-Hour Design Value 0.097 0.099 0.103 0.099 0.103 0.10Maximum 1-Hour Concentration 0.120 0.120 0.130 0.126 0.136 0.145 0.163 0.141-Hour Design Value 0.120 0.120 0.124 0.124 0.136 0.145 0.145 0.14Days Above Nat. 8-Hour Standard 61 34 50 48 62 40 51 6

Peak 8-Hour Indicator 1.6 1.3 1.3 1.2 1.0 1.0 0.9 0.Maximum 1-Hour Concentration 3.0 2.0 1.7 1.6 1.3 1.6 1.7 1.Maximum 8-Hour Concentration 2.4 1.5 1.0 1.0 0.9 0.8 0.9 0.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 1-Hour Design ValueMaximum Annual Average 

Maximum 24-Hour Concentration 103 62 34 53 58 62 41 4Maximum Annual Average 21.3 18.4 18 18.1 17 17.4 14.9 18.98th Percentile of 24-Hr Conc. 24-Hour Design ValueMaximum Annual Average Annual Design Value

PM10 PM2.5 CO NO2 SO2 No Monitoring 

Mountain Counties Air BasinCounty: El Dorado

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.091 0.100 0.094 0.095 0.097 0.093 0.097 0.098-Hour Design Value 0.089 0.096 0.095 0.095 0.091 0.095 0.095 0.09Maximum 1-Hour Concentration 0.111 0.120 0.113 0.114 0.111 0.120 0.114 0.151-Hour Design Value 0.110 0.110 0.111 0.111 0.111 0.111 0.114 0.12Days Above Nat. 8-Hour Standard 39 57 49 52 78 25 35 6

Peak 8-Hour Indicator Maximum 1-Hour Concentration 6.2 Maximum 8-Hour Concentration 4.5 Days Above Nat. 8-Hour Standard 0 Maximum 1-Hour Concentration 1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 104 126 115 71 106 62 40 8Maximum Annual Average 30.9 29.2 34.6 28 20.9 21.3 20.4 26.98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

OZONE PM10 PM2.5 CO NO2 SO2

County: MariposaTable B-22 

No Monitoring 

No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 49 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-23 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour IndicatorMaximum 1-Hour Concentration 0.0 10.0 9.0Maximum 8-Hour Concentration 0.0 5.4 5.4Days Above Nat. 8-Hour Standard 0 0 0

OZONE PM10 PM2.5 CO NO2 SO2

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.092 0.093 0.092 0.093 0.089 0.077 0.093 0.088-Hour Design Value 0.092 0.092 0.091 0.086 0.086 0.08Maximum 1-Hour Concentration 0.130 0.120 0.122 0.130 0.108 0.103 0.132 0.151-Hour Design Value 0.130 0.120 0.120 0.119 0.117 0.109 0.103 0.10Days Above Nat. 8-Hour Standard 36 17 32 23 15 5 23 3

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 86 60 74Maximum Annual Average 22.9 21.8 21.998th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

OZONE PM10 PM2.5 CO NO2 SO2

County: Placer

No Monitoring 

Table B-24 

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.085 0.065 0.090 0.085 0.096 0.096 0.094 0.098-Hour Design Value 0.088 0.049 0.076 0.087 0.089 0.095 0.09

Maximum 1-Hour Concentration 0.110 0.090 0.110 0.099 0.111 0.108 0.119 0.161-Hour Design Value 0.150 0.090 0.110 0.110 0.110 0.109 0.111 0.11Days Above Nat. 8-Hour Standard 19 2 26 23 69 53 52 6

Maximum 1-Hour Concentration 1-Hour Design ValueMaximum Annual Average 

Maximum 24-Hour Concentration 30 34 90 179 114 10

Maximum Annual Average 21.7 14.4 32.2 38.3 32.5 27.

98th Percentile of 24-Hr Conc. 50.24-Hour Design Value Maximum Annual Average Annual Design Value 

No Monitoring 

Mountain Counties Air BasinCounty: Nevada

No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 50 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-25 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.037 0.070 0.080 0.082 0.072 0.041 0.069 0.078-Hour Design Value 0.062 0.077 0.078 0.065 0.060 0.06Maximum 1-Hour Concentration 0.050 0.090 0.090 0.105 0.091 0.046 0.087 0.081-Hour Design Value 0.090 0.090 0.092 0.092 0.092 0.090 0.08Days Above Nat. 8-Hour Standard 0 1 11 15 2 0 0 

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 120 130 98 52 55 66 74 12Maximum Annual Average 37.5 35.4 33 24 25.9 23 25.3 27.98th Percentile of 24-Hr Conc. 84.24-Hour Design Value Maximum Annual Average 

Annual Design Value 

PM10 PM2.5 CO NO2 SO2 No Monitoring 

Mountain Counties Air BasinCounty: Plumas

No Monitoring 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour8-Hour Design ValueMaximum 1-Hour Concentration1-Hour Design ValueDays Above Nat. 8-Hour Standard

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 114 138 60 6Maximum Annual Average 29.6 32 22.6 298th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

OZONE PM10 PM2.5 CO NO2 SO2

County: SierraTable B-26 

No Monitoring No Monitoring No Monitoring No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 51 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-27 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour Indicator 2.9 2.9 2.8 2.8 2.7 2.4 5.1 5.Maximum 1-Hour Concentration 4.0 5.0 4.4 3.9 4.5 6.6 6.7 4.Maximum 8-Hour Concentration 2.6 3.0 2.7 3.4 2.6 1.9 5.5 3.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.083 0.087 0.086 0.088 0.095 0.086 0.100 0.098-Hour Design Value 0.074 0.076 0.085 0.087 0.088 0.088 0.092 0.09Maximum 1-Hour Concentration 0.100 0.120 0.107 0.135 0.121 0.117 0.122 0.131-Hour Design Value 0.100 0.100 0.102 0.103 0.116 0.117 0.117 0.11Days Above Nat. 8-Hour Standard 17 27 31 34 52 29 58 7

Maximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour ConcentrationMaximum Annual Average98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

No Monitoring No Monitoring 

Mountain Counties Air BasinCounty: Tuolumne

No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 52 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-28 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.067 0.077 0.068 0.066 0.074 0.061 0.067 0.068-Hour Design Value 0.071 0.069 0.070 0.069 0.067 0.066 0.066 0.06Maximum 1-Hour Concentration 0.090 0.110 0.093 0.093 0.094 0.091 0.091 0.081-Hour Design Value 0.090 0.090 0.090 0.090 0.091 0.087 0.089 0.08Days Above Nat. 8-Hour Standard 3431211

Peak 8-Hour Indicator 2.5 2.4 2.3 2.2 2.2 2.0 2.0 2.Maximum 1-Hour Concentration 4.0 4.0 4.6 3.2 5.5 4.4 3.8 3.Maximum 8-Hour Concentration 2.9 2.7 2.1 2.1 2.6 1.8 2.2 1.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 70 70 67 54 60 56 85 51-Hour Design Value 50 50 49 48 45 45 43 

Maximum Annual Average 12 12 12 11 11 10 10 1

Maximum 24-Hour Concentration 45 86 50 50 50 91 52 9Maximum Annual Average 19.7 19.5 19.5 20.6 20 29.9 27 298th Percentile of 24-Hr Conc. 24-Hour Design Value Maximum Annual Average Annual Design Value 

PM10 PM2.5 CO NO2 SO2

North Central Coast Air BasinCounty: Monterey

No Monitoring 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.083 0.082 0.078 0.083 0.094 0.076 0.088 0.088-Hour Design Value 0.084 0.083 0.081 0.081 0.085 0.084 0.086 0.08Maximum 1-Hour Concentration 0.110 0.110 0.101 0.138 0.120 0.112 0.124 0.101-Hour Design Value 0.110 0.110 0.110 0.104 0.114 0.114 0.114 0.10Days Above Nat. 8-Hour Standard 12 18 10 16 34 5 17 1

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 17 61 37 50 38 34 37 6Maximum Annual Average 2.7 18.8 16.9 17.2 16.8 18 15.7 21.98th Percentile of 24-Hr Conc. 24-Hour Design Value Maximum Annual Average Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: San BenitoTable B-29 

No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 53 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-30 Maximum 1-Hour Concentration 10.0 50.0 41.0 58.0 9.0 6.0 28.0 7.1-Hour Design Value 10.0 15.0 6.0 6.

Maximum 24-Hour Concentration 8.3 6.7 6.0 12.2 3.2 2.0 3.9 2.Maximum Annual Average 0.1 0.4 1.7 0.6 1.3 0.5 1.0 1.

Peak 8-Hour Indicator 1.1 1.1 1.1 1.1 1.0 0.8 0.8 0.Maximum 1-Hour Concentration 2.0 1.0 2.2 1.4 3.0 0.9 1.0 2.Maximum 8-Hour Concentration 1.2 1.0 1.3 0.9 1.0 0.7 0.9 0.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.066 0.080 0.071 0.065 0.075 0.063 0.068 0.068-Hour Design Value 0.058 0.059 0.072 0.062 0.066 0.067 0.068 0.06Maximum 1-Hour Concentration 0.090 0.100 0.094 0.097 0.107 0.089 0.107 0.091-Hour Design Value 0.090 0.100 0.100 0.100 0.097 0.091 0.092 0.08Days Above Nat. 8-Hour Standard 0910301

Maximum 1-Hour Concentration 40 50 45 53 42 31 39 31-Hour Design Value 37 28 2

Maximum Annual Average 6 55544

Maximum 24-Hour Concentration 36 102 106 152 115 113 76 10Maximum Annual Average 17.4 35.6 31.1 36.4 32.8 37 28.5 30.98th Percentile of 24-Hr Conc. 24-Hour Design Value Maximum Annual Average Annual Design Value 

North Central Coast Air BasinCounty: Santa Cruz

File 08 C App B AQ Alm2013 p41-80.indd 54 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-31 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.051 0.050 0.052 0.0468-Hour Design Value 0.051 0.050 0.051 0.049Maximum 1-Hour Concentration 0.070 0.060 0.064 0.0561-Hour Design Value 0.070 0.060 0.060 0.060Days Above Nat. 8-Hour Standard 0000

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 41 42 58 48 3Maximum Annual Average 20.5 15.8 20.9 24.7 17.98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

PM10 PM2.5 CO NO2 SO2

North Coast Air BasinCounty: Del Norte

Maximum 1-Hour Concentration 1-Hour Design Value Maximum 24-Hour Concentration Maximum Annual Average 

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.033 

8-Hour Design Value 0.034 Maximum 1-Hour Concentration 0.040 1-Hour Design Value 0.040 Days Above Nat. 8-Hour Standard 0 

Peak 8-Hour Indicator Maximum 1-Hour Concentration Maximum 8-Hour Concentration Days Above Nat. 8-Hour Standard Maximum 1-Hour Concentration 1-Hour Design Value Maximum Annual Average 

Maximum 24-Hour Concentration 77 68 87 56 43 5Maximum Annual Average 24.3 19.9 18.4 21.2 14.8 19.98th Percentile of 24-Hr Conc. 27.24-Hour Design Value 

Maximum Annual Average 9.

Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: HumboldtTable B-32 

No Monitoring 

No Monitoring 

No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 55 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-33 Maximum 1-Hour Concentration 30.0 10.0 9.01-Hour Design ValueMaximum 24-Hour Concentration 6.4 1.4 2.3Maximum Annual Average 0.4 0.0 0.9Peak 8-Hour Indicator 2.4 3.2 3.4 3.3 3.1 3.

Maximum 1-Hour Concentration 1.0 6.0 5.4 4.8 7.4 4.8 5.Maximum 8-Hour Concentration 0.6 2.4 3.2 2.7 3.2 3.5 3.Days Above Nat. 8-Hour Standard 0 0 0000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.038 0.056 0.058 0.056 0.042 0.054 0.060 0.068-Hour Design Value 0.050 0.056 0.052 0.050 0.052 0.05Maximum 1-Hour Concentration 0.060 0.080 0.087 0.084 0.058 0.071 0.090 0.071-Hour Design Value 0.080 0.080 0.080 0.074 0.069 0.069 0.07Days Above Nat. 8-Hour Standard 0000000

Maximum 1-Hour Concentration 80 50 79 78 44 61 52 61-Hour Design Value 4Maximum Annual Average 9 9 10 10 1

Maximum 24-Hour Concentration 51 54 62 54 56 66 50 6Maximum Annual Average 21.8 22.6 23.9 26.1 24.6 23.4 21.1 24.98th Percentile of 24-Hr Conc. 26.24-Hour Design Value Maximum Annual Average 8.Annual Design Value 

North Coast Air BasinCounty: Mendocino

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.063 0.067 0.070 0.071 0.066 0.081 0.086 0.08

8-Hour Design Value 0.066 0.069 0.069 0.072 0.077 0.08Maximum 1-Hour Concentration 0.090 0.090 0.100 0.100 0.080 0.100 0.130 0.101-Hour Design Value 0.080 0.090 0.090 0.090 0.090 0.090 0.110 0.11Days Above Nat. 8-Hour Standard 0022047

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 58 53 57 43 40 54 32 7Maximum Annual Average 21.4 20.3 18.4 13.7 16.5 16.5 16 18.98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

OZONE PM10 PM2.5 CO NO2 SO2

County: Sonoma

No Monitoring 

Table B-34 

No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 56 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-35 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour8-Hour Design ValueMaximum 1-Hour Concentration1-Hour Design ValueDays Above Nat. 8-Hour Standard

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 41 72 54 46 10Maximum Annual Average 17.4 17.7 18 18.7 25.98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

PM10 PM2.5 CO NO2 SO2

North Coast Air BasinCounty: Trinity

No Monitoring 

No Monitoring 

No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 57 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-36 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour Standard

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour8-Hour Design ValueMaximum 1-Hour Concentration1-Hour Design ValueDays Above Nat. 8-Hour Standard

Maximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 42 84 52 10Maximum Annual Average 15.6 20.2 14.7 32.98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

Northeast Plateau Air BasinCounty: Lassen

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour8-Hour Design ValueMaximum 1-Hour Concentration1-Hour Design ValueDays Above Nat. 8-Hour Standard

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 101 78 74 97 62 9Maximum Annual Average 29.6 30.3 16.2 17.3 14.2 26.98th Percentile of 24-Hr Conc. 27.24-Hour Design ValueMaximum Annual Average 7.Annual Design Value

OZONE PM10 PM2.5 CO NO2 SO2

County: Modoc

No Monitoring 

Table B-37 

No Monitoring No Monitoring No Monitoring 

No Monitoring No Monitoring No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 58 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-38 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.061 0.053 0.062 0.057 0.058 0.059 0.066 0.068-Hour Design Value 0.057 0.051 0.058 0.057 0.059 0.058 0.061 0.06Maximum 1-Hour Concentration 0.080 0.070 0.080 0.070 0.070 0.082 0.078 0.071-Hour Design Value 0.080 0.070 0.070 0.070 0.070 0.070 0.078 0.07Days Above Nat. 8-Hour Standard 0000000

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 74 60 61 46 188 40 66 5Maximum Annual Average 23.6 21.4 22.1 16.6 16.1 12.9 14.2 17.98th Percentile of 24-Hr Conc. 24-Hour Design ValueMaximum Annual Average Annual Design Value

PM10 PM2.5 CO NO2 SO2

Northeast Plateau Air BasinCounty: Siskiyou

No Monitoring 

No Monitoring 

No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 59 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-39 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour Indicator 9.8 8.9 6.2 5.8 5.9 5.5 5.3 4.Maximum 1-Hour Concentration 14.0 9.0 9.4 8.5 8.7 7.0 6.0 7.Maximum 8-Hour Concentration 6.8 5.8 5.7 4.8 6.1 5.1 4.5 5.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.077 0.076 0.082 0.076 0.074 0.066 0.078 0.088-Hour Design Value 0.076 0.075 0.078 0.078 0.077 0.072 0.072 0.07Maximum 1-Hour Concentration 0.090 0.100 0.099 0.105 0.108 0.087 0.106 0.131-Hour Design Value 0.090 0.090 0.095 0.097 0.097 0.091 0.096 0.10Days Above Nat. 8-Hour Standard 5 6 20 4 3 0 5 1

Maximum 1-Hour Concentration 80 90 80 74 70 61 68 71-Hour Design Value 67 63 59 58 57 55 54 5Maximum Annual Average 16 16 15 14 13 13 13 1

Maximum 24-Hour Concentration 83 78 93 64 66 108 68 9Maximum Annual Average 24.6 27.6 33.3 26.2 25.5 24.9 22.3 30.98th Percentile of 24-Hr Conc. 69.0 60.24-Hour Design Value Maximum Annual Average 17.Annual Design Value 

Sacramento Valley Air BasinCounty: Butte

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.083 0.083 0.082 0.083 0.082 0.073 0.078 0.078-Hour Design Value 0.079 0.082 0.082 0.081 0.077 0.07

Maximum 1-Hour Concentration 0.110 0.100 0.107 0.106 0.111 0.093 0.099 0.091-Hour Design Value 0.100 0.100 0.100 0.101 0.111 0.101 0.099 0.09Days Above Nat. 8-Hour Standard 20 10 22 13 17 3 4 

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 84 83 204 198 60 57 58 17Maximum Annual Average 28.7 28.6 30.1 40.7 27.1 24.6 19.5 33.98th Percentile of 24-Hr Conc. 37.0 47.24-Hour Design Value Maximum Annual Average 

Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Colusa

No Monitoring 

Table B-40 

No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 60 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-41 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.087 0.078 0.081 0.079 0.077 0.077 0.076 0.088-Hour Design Value 0.081 0.080 0.076 0.079 0.077 0.076 0.07

Maximum 1-Hour Concentration 0.110 0.100 0.099 0.103 0.098 0.096 0.098 0.101-Hour Design Value 0.100 0.100 0.100 0.099 0.098 0.092 0.095 0.09Days Above Nat. 8-Hour Standard 22 6 16 11 9 5 4 1

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 111 75 80 88 75 72 53 8Maximum Annual Average 28.4 23.1 24.5 27.6 24.7 22.4 19.6 26.98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

PM10 PM2.5 CO NO2 SO2

Sacramento Valley Air BasinCounty: Glenn

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.111 0.103 0.106 0.108 0.102 0.085 0.106 0.108-Hour Design Value 0.105 0.101 0.103 0.105 0.103 0.095 0.095 0.09Maximum 1-Hour Concentration 0.170 0.150 0.133 0.148 0.135 0.113 0.153 0.141-Hour Design Value 0.160 0.150 0.140 0.134 0.131 0.131 0.131 0.13Days Above Nat. 8-Hour Standard 61 35 53 38 57 18 44 4

Peak 8-Hour Indicator 2.3 2.6 2.9 2.6 2.5 2.2 2.3 2.Maximum 1-Hour Concentration 9.0 6.0 4.7 3.9 4.5 3.7 4.2 3.Maximum 8-Hour Concentration 2.3 2.8 3.0 2.2 2.8 2.2 2.4 2.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 80 90 89 93 100 80 97 91-Hour Design Value 67 65 78 75 72 7Maximum Annual Average 15 16 18 17 16 15 16 1

Maximum 24-Hour Concentration 48 52 65 84 98 66 70 8Maximum Annual Average 17.4 24.3 25 27.3 23.6 21.8 22.3 26.98th Percentile of 24-Hr Conc. 63.0 40.24-Hour Design Value Maximum Annual Average 13.Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: PlacerTable B-42 

No Monitoring No Monitoring No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 61 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.088 0.077 0.091 0.079 0.095 0.086 0.105 0.098-Hour Design Value 0.090 0.083 0.084 0.080 0.087 0.086 0.095 0.09Maximum 1-Hour Concentration 0.110 0.110 0.113 0.099 0.110 0.118 0.140 0.111-Hour Design Value 0.120 0.110 0.111 0.111 0.111 0.110 0.140 0.14Days Above Nat. 8-Hour Standard 20 6 28 14 30 19 70 4

Peak 8-Hour Indicator 2.7 2.0 2.0Maximum 1-Hour Concentration 3.0 4.0 4.5Maximum 8-Hour Concentration 1.9 2.1 1.7Days Above Nat. 8-Hour Standard 0 0 0Maximum 1-Hour Concentration 501-Hour Design ValueMaximum Annual Average 12

Maximum 24-Hour Concentration 86 91 64 55 51 63 61 8Maximum Annual Average 23.1 36.9 26.7 25.2 24.3 22.2 23.5 23.98th Percentile of 24-Hr Conc. 50.0 55.24-Hour Design Value Maximum Annual Average 12.

Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Shasta

No Monitoring 

Table B-43 Maximum 1-Hour Concentration 20.0 40.0 30.0 14.0 14.0 38.0 29.0 26.1-Hour Design Value 17.0 13.0 10.0 12.0 15.Maximum 24-Hour Concentration 12.2 6.5 11.0 7.0 6.4 6.2 18.4 12.Maximum Annual Average 0.8 0.4 1.3 1.3 2.1 2.3 3.2 4.Peak 8-Hour Indicator 12.9 10.7 9.6 9.3 8.5 7.7 7.3 7.Maximum 1-Hour Concentration 12.0 12.0 10.8 9.8 8.7 9.5 7.9 7.Maximum 8-Hour Concentration 8.6 9.4 8.5 7.4 7.2 7.2 7.1 6.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.107 0.102 0.105 0.111 0.104 0.091 0.113 0.108-Hour Design Value 0.101 0.110 0.104 0.106 0.106 0.097 0.095 0.10Maximum 1-Hour Concentration 0.150 0.150 0.145 0.156 0.157 0.143 0.160 0.161-Hour Design Value 0.150 0.150 0.142 0.145 0.145 0.143 0.149 0.14Days Above Nat. 8-Hour Standard 54 36 46 42 56 33 45 5

Maximum 1-Hour Concentration 190 120 111 99 145 92 101 111-Hour Design Value 90 90 83 80 78 73 68 7Maximum Annual Average 21 22 22 22 22 19 21 2

Maximum 24-Hour Concentration 89 113 99 90 86 108 104 14Maximum Annual Average 31.1 31.5 30.2 28.8 24.9 23.2 27 33.98th Percentile of 24-Hr Conc. 96.0 84.24-Hour Design Value Maximum Annual Average 19.

Annual Design Value 

Sacramento Valley Air BasinCounty: Sacramento

Table B-44 

File 08 C App B AQ Alm2013 p41-80.indd 62 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-45 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.079 0.080 0.071 0.096 0.088-Hour Design Value 0.076 0.082 0.08

Maximum 1-Hour Concentration 0.115 0.126 0.105 0.137 0.131-Hour Design Value 0.115 0.117 0.115 0.123 0.12Days Above Nat. 8-Hour Standard 4 12 3 14 1

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 70 53 76 62 45 74 56 6Maximum Annual Average 24.4 22.4 21.2 19 17.3 16.1 17.2 19.98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

PM10 PM2.5 CO NO2 SO2

Sacramento Valley Air BasinCounty: Solano

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.090 0.097 0.095 0.097 0.096 0.082 0.095 0.098-Hour Design Value 0.082 0.082 0.085 0.096 0.096 0.091 0.091 0.08Maximum 1-Hour Concentration 0.120 0.140 0.115 0.126 0.116 0.105 0.124 0.111-Hour Design Value 0.110 0.120 0.120 0.115 0.115 0.109 0.124 0.12Days Above Nat. 8-Hour Standard 45 26 57 36 58 12 39 4

Peak 8-Hour Indicator 8.1 5.8 5.7 5.2 4.8 4.6 4.4 4.Maximum 1-Hour Concentration 9.0 10.0 8.8 7.5 7.7 6.1 7.3 7.Maximum 8-Hour Concentration 6.3 7.3 6.1 4.7 4.7 4.1 4.9 4.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 90 90 75 74 68 73 74 81-Hour Design Value 68 67 64 63 58 6Maximum Annual Average 17 17 16 13 12 14 13 1

Maximum 24-Hour Concentration 79 78 154 128 82 98 60 15Maximum Annual Average 34.3 30.7 34.5 30.4 29.8 28.6 23.8 38.98th Percentile of 24-Hr Conc. 66.0 56.24-Hour Design Value Maximum Annual Average 16.Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: SutterTable B-46 

No Monitoring No Monitoring No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 63 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.086 0.076 0.077 0.084 0.087 0.071 0.087 0.088-Hour Design Value 0.080 0.078 0.079 0.078 0.082 0.079 0.080 0.08Maximum 1-Hour Concentration 0.120 0.130 0.100 0.114 0.122 0.104 0.115 0.111-Hour Design Value 0.110 0.110 0.110 0.108 0.111 0.108 0.114 0.11Days Above Nat. 8-Hour Standard 18 4 6 10 19 2 19 1

Peak 8-Hour Indicator 3.8 3.8 1.4 1.7 1.5 1.

Maximum 1-Hour Concentration 7.0 6.0 10.0 5.3 2.4 2.8 2.5 2.Maximum 8-Hour Concentration 3.9 3.4 6.6 3.1 1.8 1.8 1.1 1.Days Above Nat. 8-Hour Standard 0000000

Maximum 1-Hour Concentration 61 57 60 71-Hour Design Value 5Maximum Annual Average 10 11 1

Maximum 24-Hour Concentration 106 96 98 145 77 126 130 17Maximum Annual Average 42.3 31.8 29.8 36.8 27.5 27.6 29 32.98th Percentile of 24-Hr Conc. 56.24-Hour Design Value Maximum Annual Average 16.

Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Yolo

No Monitoring 

Table B-47 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour Standard

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.090 0.087 0.082 0.091 0.083 0.081 0.098 0.098-Hour Design Value 0.089 0.086 0.086 0.086 0.083 0.086 0.09Maximum 1-Hour Concentration 0.100 0.100 0.100 0.110 0.108 0.101 0.120 0.121-Hour Design Value 0.110 0.100 0.100 0.100 0.108 0.101 0.120 0.12Days Above Nat. 8-Hour Standard 30 8 12 26 30 18 40 4

Maximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour Concentration 75 67 74 63 56 58 119 9Maximum Annual Average 29.3 25 30 25.2 20.6 22.5 23.6 28.98th Percentile of 24-Hr Conc. 24-Hour Design ValueMaximum Annual Average Annual Design Value

Sacramento Valley Air BasinCounty: Tehama

No Monitoring 

Table B-48 

No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 64 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-49 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour8-Hour Design ValueMaximum 1-Hour Concentration1-Hour Design ValueDays Above Nat. 8-Hour Standard

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration1-Hour Design ValueMaximum Annual Average

Maximum 24-Hour ConcentrationMaximum Annual Average98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

PM10 PM2.5 CO NO2 SO2

Sacramento Valley Air BasinCounty: Yuba

No Monitorin

File 08 C App B AQ Alm2013 p41-80.indd 65 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.115 0.112 0.114 0.106 0.115 0.100 0.107 0.098-Hour Design Value 0.121 0.118 0.113 0.110 0.111 0.107 0.107 0.10Maximum 1-Hour Concentration 0.170 0.170 0.165 0.160 0.160 0.155 0.173 0.121-Hour Design Value 0.170 0.170 0.152 0.158 0.158 0.152 0.155 0.14Days Above Nat. 8-Hour Standard 84 96 74 64 78 54 52 4

Peak 8-Hour Indicator 2.2 2.1 1.9 1.7 1.6 1.5 1.5 1.Maximum 1-Hour Concentration 5.0 6.0 3.9 3.3 3.2 2.7 3.1 2.Maximum 8-Hour Concentration 2.4 2.0 2.0 1.5 1.6 1.3 1.7 1.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 90 90 80 82 80 69 70 61-Hour Design Value 71 69 64 62 6Maximum Annual Average 19 21 21 20 15 16 1

Maximum 24-Hour Concentration 175 125 97 199 215 182 158 11Maximum Annual Average 43.1 46.5 48.3 52.3 55.6 53.9 48.1 52.98th Percentile of 24-Hr Conc. 24-Hour Design Value Maximum Annual Average 

Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Riverside

No Monitoring 

Table B-50 Maximum 1-Hour Concentration 60.0 39.0 36.0 40.0 35.0 28.1-Hour Design Value 28.0 26.Maximum 24-Hour Concentration 17.7 17.3 14.2 14.1 18.6 17.Maximum Annual Average 6.6 5.2 3.8 2.6 3.4 2.Peak 8-Hour Indicator 17.4 18.8 17.8 17.4 15.5 15.Maximum 1-Hour Concentration 30.6 32.0 27.0 24.0 23.5 22.Maximum 8-Hour Concentration 13.1 22.9 22.1 17.8 14.4 17.Days Above Nat. 8-Hour Standard 9 15 9 10 8 1

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.103 0.105 0.105 0.107 0.101 0.105 0.098 0.098-Hour Design Value 0.079 0.095 0.104 0.105 0.103 0.103 0.093 0.09Maximum 1-Hour Concentration 0.150 0.210 0.180 0.232 0.180 0.160 0.236 0.171-Hour Design Value 0.170 0.170 0.150 0.205 0.192 0.180 0.150 0.16Days Above Nat. 8-Hour Standard 56 62 102 85 72 107 51 6

Maximum 1-Hour Concentration 227 217 164 128 257 281-Hour Design Value 113 7Maximum Annual Average 16 14 15 12 1

Maximum 24-Hour Concentration 103 175 258 229 359 532 185 22Maximum Annual Average 47.5 53.3 75.1 71.9 73.6 77.7 74.1 77.98th Percentile of 24-Hr Conc. 43.24-Hour Design Value Maximum Annual Average 15.Annual Design Value 

Salton Sea Air BasinCounty: Imperial

Table B-51 

File 08 C App B AQ Alm2013 p41-80.indd 66 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-52 

OZONE

Maximum 1-Hour Concentration 120.0 56.0 98.0 81.0 87.0 81.0 149.0 84.1-Hour Design Value 50.0 70.0 72.0 55.0 56.0 56.0 56.0 59.Maximum 24-Hour Concentration 30.0 18.0 19.5 17.5 19.2 16.7 20.2 19.Maximum Annual Average 4.4 2.8 3.0 3.5 4.7 4.0 3.2 3.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.110 0.112 0.107 0.107 0.099 0.093 0.114 0.098-Hour Design Value 0.118 0.112 0.109 0.108 0.104 0.099 0.102 0.09Maximum 1-Hour Concentration 0.170 0.187 0.147 0.162 0.138 0.136 0.164 0.121-Hour Design Value 0.170 0.154 0.150 0.146 0.141 0.137 0.133 0.13Days Above Nat. 8-Hour Standard 105 91 90 94 64 43 58 4

Peak 8-Hour Indicator 8.6 7.8 7.7 7.3 7.3 6.3 6.3 5.Maximum 1-Hour Concentration 14.0 11.4 11.0 9.9 12.4 9.3 10.2 9.Maximum 8-Hour Concentration 7.9 7.5 7.5 6.3 7.1 5.4 4.8 6.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 190 130 157 140 124 142 132 171-Hour Design Value 120 109 104 99 95 94 88 9Maximum Annual Average 27 23 24 26 22 24 23 2

Maximum 24-Hour Concentration 67 159 129 121 93 125 89 12Maximum Annual Average 35.9 45.9 50.7 46.8 38.5 46.6 42.5 52.98th Percentile of 24-Hr Conc. 45.24-Hour Design Value Maximum Annual Average 18.Annual Design Value 

PM10 PM2.5 CO NO2 SO2

San Diego Air BasinCounty: San Diego

File 08 C App B AQ Alm2013 p41-80.indd 67 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Maximum 1-Hour Concentration 100.0 110.0 74.0 47.0 63.0 99.0 62.0 98.1-Hour Design Value 37.0 37.0 40.0 28.0 27.0 30.0 36.0 43.Maximum 24-Hour Concentration 20.8 12.5 9.9 9.9 13.0 13.5 14.3 34.Maximum Annual Average 1.9 1.6 2.3 2.4 2.7 3.4 2.5 3.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.081 0.080 0.080 0.088 0.089 0.072 0.088 0.098-Hour Design Value 0.081 0.079 0.079 0.081 0.085 0.083 0.083 0.08Maximum 1-Hour Concentration 0.110 0.130 0.121 0.152 0.137 0.108 0.147 0.151-Hour Design Value 0.110 0.110 0.121 0.130 0.127 0.127 0.119 0.12Days Above Nat. 8-Hour Standard 7 13 7 13 13 2 15 

Peak 8-Hour Indicator 5.7 5.2 4.5 4.1 3.6 3.2 3.3 3.Maximum 1-Hour Concentration 9.0 9.0 7.7 6.5 6.8 5.7 5.7 7.Maximum 8-Hour Concentration 5.4 5.0 4.2 2.9 2.9 3.2 3.8 3.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 110 100 81 87 85 76 66 81-Hour Design Value 73 73 68 66 61 58 55 6Maximum Annual Average 20 20 20 19 17 16 16 1

Maximum 24-Hour Concentration 73 81 87 73 76 78 67 10Maximum Annual Average 26.5 25.1 24.5 23.3 21.1 22.3 20.1 25.98th Percentile of 24-Hr Conc. 44.24-Hour Design Value Maximum Annual Average 

Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Contra CostaTable B-53 Maximum 1-Hour Concentration 1-Hour Design Value Maximum 24-Hour Concentration 

Maximum Annual Average 

Peak 8-Hour Indicator 6.4 5.8 4.8 4.8 4.9 4.4 4.5 4.Maximum 1-Hour Concentration 7.0 7.0 8.7 5.5 6.9 7.9 6.3 6.Maximum 8-Hour Concentration 4.6 4.9 5.6 3.8 3.9 3.6 4.6 5.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.082 0.082 0.082 0.099 0.099 0.072 0.096 0.098-Hour Design Value 0.082 0.081 0.082 0.087 0.093 0.090 0.089 0.08Maximum 1-Hour Concentration 0.130 0.130 0.129 0.155 0.138 0.114 0.146 0.141-Hour Design Value 0.120 0.120 0.120 0.138 0.138 0.138 0.138 0.13Days Above Nat. 8-Hour Standard 7 7 4 19 19 4 16 1

Maximum 1-Hour Concentration 110 110 97 86 88 86 98 111-Hour Design Value 77 73 68 71 69 68 67 6Maximum Annual Average 19 22 22 21 22 20 20 2

Maximum 24-Hour Concentration 99 84 97 52 71 65 63 8Maximum Annual Average 29 25.9 24.9 22.3 22.6 24.3 21.8 25.98th Percentile of 24-Hr Conc. 63.24-Hour Design Value Maximum Annual Average Annual Design Value 

San Francisco Bay Area Air BasinCounty: Alameda

Table B-54 

File 08 C App B AQ Alm2013 p41-80.indd 68 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-55 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.051 0.053 0.054 0.060 0.059 0.048 0.047 0.058-Hour Design Value 0.051 0.047 0.050 0.055 0.057 0.055 0.051 0.05Maximum 1-Hour Concentration 0.070 0.080 0.089 0.088 0.105 0.106 0.074 0.101-Hour Design Value 0.066 0.080 0.080 0.082 0.088 0.088 0.081 0.09Days Above Nat. 8-Hour Standard 0000100

Peak 8-Hour Indicator 5.4 5.1 3.9 3.5 3.3 3.2 3.3 3.Maximum 1-Hour Concentration 8.0 9.0 6.4 6.1 7.1 6.0 5.9 5.Maximum 8-Hour Concentration 5.0 4.0 3.0 3.2 4.0 2.6 3.3 2.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 80 79 60 68 67 62 81-Hour Design Value 55 53 51 50 5Maximum Annual Average 21 20 18 18 16 17 1

Maximum 24-Hour Concentration 63 69 72 74 50 72 52 7Maximum Annual Average 24.4 23.4 24.2 20.8 21.7 21.9 20.1 298th Percentile of 24-Hr Conc. 24-Hour Design ValueMaximum Annual Average Annual Design Value

PM10 PM2.5 CO NO2 SO2

San Francisco Bay Area Air BasinCounty: Marin

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.060 0.072 0.066 0.081 0.067 0.055 0.069 0.078-Hour Design Value 0.063 0.066 0.066 0.073 0.071 0.067 0.063 0.06Maximum 1-Hour Concentration 0.090 0.120 0.092 0.130 0.090 0.084 0.125 0.111-Hour Design Value 0.090 0.100 0.091 0.105 0.095 0.095 0.091 0.10Days Above Nat. 8-Hour Standard 0205002

Peak 8-Hour Indicator 6.0 5.7 5.2 5.0 4.5 4.1 4.1 4.Maximum 1-Hour Concentration 8.0 7.0 7.4 7.6 5.6 5.7 5.8 5.Maximum 8-Hour Concentration 5.3 4.4 4.6 3.5 3.8 3.9 3.9 4.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 80 65 59 77 75 61 81-Hour Design Value 54 49 48 46 5Maximum Annual Average 15 15 14 14 12 12 1

Maximum 24-Hour Concentration 74 70 86 69 57 78 60 6Maximum Annual Average 27.1 25.7 23.6 20.3 20.2 18.7 16.9 18.98th Percentile of 24-Hr Conc.24-Hour Design ValueMaximum Annual AverageAnnual Design Value

OZONE PM10 PM2.5 CO NO2 SO2

County: NapaTable B-56 

No Monitoring No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 69 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.050 0.051 0.048 0.075 0.060 0.053 0.047 0.048-Hour Design Value 0.049 0.050 0.049 0.058 0.061 0.062 0.053 0.04Maximum 1-Hour Concentration 0.090 0.100 0.084 0.140 0.097 0.090 0.066 0.081-Hour Design Value 0.070 0.080 0.084 0.103 0.103 0.103 0.090 0.07Days Above Nat. 8-Hour Standard 0103000

Peak 8-Hour Indicator 5.8 5.8 5.4 4.9 4.4 3.9 4.2 4.Maximum 1-Hour Concentration 12.0 10.0 12.0 10.1 8.6 10.7 8.7 8.Maximum 8-Hour Concentration 4.8 5.8 5.4 3.9 3.6 4.2 4.1 3.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 90 106 77 90 84 63 101-Hour Design Value 74 71 65 62 6Maximum Annual Average 22 21 19 20 18 18 1

Maximum 24-Hour Concentration 80 76 76 48 48 70 49 8Maximum Annual Average 28.5 26.5 24.9 21 21.1 23.9 22.4 24.98th Percentile of 24-Hr Conc. 53.24-Hour Design Value Maximum Annual Average Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: San Mateo

No Monitoring 

Table B-57 Maximum 1-Hour Concentration 40.0 40.0 17.0 44.0 36.0 26.0 36.0 28.1-Hour Design Value 23.0 27.0 21.0 23.0 20.0 20.0 16.0 14.Maximum 24-Hour Concentration 12.2 10.4 5.4 7.3 7.7 6.3 6.4 6.Maximum Annual Average 1.6 1.0 0.8 1.3 1.2 1.4 1.2 2.Peak 8-Hour Indicator 6.7 6.4 5.8 5.6 4.7 4.5 4.2 4.Maximum 1-Hour Concentration 10.0 10.0 7.5 8.5 8.6 8.0 7.1 8.Maximum 8-Hour Concentration 7.4 6.9 5.3 5.3 5.6 5.7 4.0 4.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.043 0.041 0.044 0.049 0.045 0.042 0.042 0.058-Hour Design Value 0.043 0.042 0.042 0.044 0.046 0.045 0.043 0.04Maximum 1-Hour Concentration 0.080 0.080 0.055 0.088 0.071 0.068 0.053 0.071-Hour Design Value 0.060 0.060 0.060 0.080 0.071 0.071 0.061 0.06Days Above Nat. 8-Hour Standard 0000000

Maximum 1-Hour Concentration 90 80 91 88 81 67 80 101-Hour Design Value 83 77 73 68 68 65 61 6Maximum Annual Average 22 24 22 21 21 20 20 2

Maximum 24-Hour Concentration 81 69 93 50 71 81 52 7Maximum Annual Average 31.7 28.8 28 24.8 24.3 24.9 21.7 26.98th Percentile of 24-Hr Conc. 48.24-Hour Design Value Maximum Annual Average Annual Design Value 

San Francisco Bay Area Air BasinCounty: San Francisco

Table B-58 

File 08 C App B AQ Alm2013 p41-80.indd 70 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-59 

OZONE

Maximum 1-Hour Concentration 1-Hour Design Value Maximum 24-Hour Concentration Maximum Annual Average 

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.080 0.081 0.079 0.099 0.091 0.070 0.094 0.078-Hour Design Value 0.078 0.080 0.080 0.083 0.088 0.085 0.085 0.08Maximum 1-Hour Concentration 0.130 0.130 0.130 0.145 0.129 0.114 0.147 0.121-Hour Design Value 0.130 0.120 0.118 0.130 0.129 0.129 0.118 0.12Days Above Nat. 8-Hour Standard 12 12 7 17 20 2 17 1

Peak 8-Hour Indicator 11.1 9.3 8.1 7.8 7.4 6.5 6.7 6.Maximum 1-Hour Concentration 11.0 14.0 12.0 8.9 8.8 9.9 8.6 9.Maximum 8-Hour Concentration 7.8 6.9 8.8 5.8 7.0 6.1 6.3 6.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 100 120 107 116 108 118 83 12

1-Hour Design Value 110 97 85 90 87 84 78 8Maximum Annual Average 25 27 28 27 25 25 25 2

Maximum 24-Hour Concentration 112 101 93 60 76 95 92 11Maximum Annual Average 33.7 28.4 28.6 28.4 24.9 25.8 25.1 28.98th Percentile of 24-Hr Conc. 69.24-Hour Design Value Maximum Annual Average 16.Annual Design Value 

PM10 PM2.5 CO NO2 SO2

San Francisco Bay Area Air BasinCounty: Santa Clara

Maximum 1-Hour Concentration 30.0 40.0 50.0 35.0 51.0 14.0 20.0 18.1-Hour Design Value 30.0 27.0 23.0 24.0 19.0 16.0 13.0 14.Maximum 24-Hour Concentration 17.1 10.0 7.5 9.9 6.9 5.2 6.2 7.Maximum Annual Average 1.0 1.3 2.1 2.8 1.9 2.1 2.1 1.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.075 0.073 0.072 0.086 0.080 0.069 0.083 0.098-Hour Design Value 0.074 0.074 0.073 0.077 0.079 0.078 0.077 0.08Maximum 1-Hour Concentration 0.100 0.130 0.107 0.133 0.113 0.103 0.121 0.121-Hour Design Value 0.100 0.100 0.100 0.109 0.113 0.113 0.110 0.11Days Above Nat. 8-Hour Standard 3 4 3 9 7 1 10 1

Peak 8-Hour Indicator 9.3 8.4 7.5 7.1 6.2 5.6 5.4 5.Maximum 1-Hour Concentration 11.0 12.0 8.7 7.0 6.4 6.5 7.2 6.Maximum 8-Hour Concentration 6.6 7.9 6.5 5.3 4.9 4.9 5.3 5.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 70 66 70 71 68 64 81-Hour Design Value 57 54 52 50 5Maximum Annual Average 16 16 15 15 13 14 1

Maximum 24-Hour Concentration 63 59 49 85 71 8Maximum Annual Average 16.1 18.7 17.2 18.3 17.2 19.98th Percentile of 24-Hr Conc. 52.24-Hour Design Value Maximum Annual Average Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: SolanoTable B-60 

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ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-61 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour Indicator 4.4 4.3 3.8 3.6 3.1 3.0 3.1 3.Maximum 1-Hour Concentration 6.0 6.0 5.1 4.9 5.6 5.4 5.2 5.Maximum 8-Hour Concentration 4.0 3.8 3.4 2.8 3.0 3.3 3.2 3.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.061 0.055 0.060 0.059 0.067 0.047 0.051 0.068-Hour Design Value 0.067 0.063 0.058 0.057 0.058 0.054 0.052 0.05Maximum 1-Hour Concentration 0.090 0.080 0.086 0.097 0.089 0.093 0.068 0.091-Hour Design Value 0.100 0.100 0.086 0.084 0.084 0.085 0.077 0.09Days Above Nat. 8-Hour Standard 1001110

Maximum 1-Hour Concentration 100 90 84 66 62 61 57 71-Hour Design Value 63 60 59 57 53 49 45 4Maximum Annual Average 15 16 15 15 14 13 15 1

Maximum 24-Hour Concentration 61 46 38 85 53 5Maximum Annual Average 19.6 15.4 16.9 18.6 18.2 20.98th Percentile of 24-Hr Conc. 44.24-Hour Design Value Maximum Annual Average Annual Design Value 

San Francisco Bay Area Air BasinCounty: Sonoma

No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 72 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-62 

OZONE

Maximum 1-Hour Concentration 30.0 10.0 17.0 14.0 15.0 10.0 

1-Hour Design Value 17.0 15.0 12.0 12.0 

Maximum 24-Hour Concentration 10.0 10.0 10.7 10.5 9.3 2.5 Maximum Annual Average 2.1 2.4 3.9 3.7 2.1 0.4 

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.108 0.111 0.105 0.108 0.110 0.115 0.122 0.108-Hour Design Value 0.108 0.111 0.107 0.108 0.107 0.111 0.115 0.11Maximum 1-Hour Concentration 0.160 0.160 0.144 0.173 0.154 0.147 0.169 0.151-Hour Design Value 0.160 0.160 0.150 0.144 0.146 0.146 0.161 0.16Days Above Nat. 8-Hour Standard 114 97 90 92 115 119 90 12

Peak 8-Hour Indicator 10.2 10.0 10.0 10.9 9.9 9.0 8.3 8.Maximum 1-Hour Concentration 13.0 13.0 15.0 12.0 10.1 9.9 10.3 11.Maximum 8-Hour Concentration 7.6 9.3 8.9 9.1 6.8 7.5 8.0 7.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 110 120 119 111 109 103 112 101-Hour Design Value 97 97 95 97 89 84 78 8Maximum Annual Average 23 23 23 22 21 21 20 2

Maximum 24-Hour Concentration 125 190 127 126 144 124 141 16Maximum Annual Average 52.2 53.1 49.7 48.8 39.3 46.7 39.3 47.98th Percentile of 24-Hr Conc. 120.24-Hour Design Value Maximum Annual Average 27.Annual Design Value 

PM10 PM2.5 CO NO2 SO2

San Joaquin Valley Air BasinCounty: Fresno

Maximum 1-Hour Concentration 30.0 30.0 29.0 26.0 59.0 20.0 11.

1-Hour Design Value 23.0 20.0 15.0 13.0 14.0Maximum 24-Hour Concentration 9.6 10.4 7.6 14.8 13.1 5.3 6.Maximum Annual Average 2.1 1.6 3.3 3.4 2.7 2.0 3.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.110 0.117 0.118 0.123 0.126 0.105 0.124 0.108-Hour Design Value 0.115 0.112 0.111 0.119 0.119 0.115 0.115 0.11Maximum 1-Hour Concentration 0.150 0.160 0.175 0.168 0.165 0.146 0.165 0.141-Hour Design Value 0.160 0.160 0.160 0.164 0.165 0.164 0.158 0.15Days Above Nat. 8-Hour Standard 134 135 129 133 127 95 104 12

Peak 8-Hour Indicator 8.5 6.8 5.4 5.3 5.1 4.7 4.1 4.Maximum 1-Hour Concentration 11.0 8.0 8.8 7.8 8.7 6.1 5.7 5.Maximum 8-Hour Concentration 5.8 6.1 6.4 6.2 7.7 4.0 3.9 4.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 110 100 89 109 110 81 100 101-Hour Design Value 100 97 60 63 63 83 77 7Maximum Annual Average 27 27 17 29 29 24 24 2

Maximum 24-Hour Concentration 186 131 192 195 153 137 159 18Maximum Annual Average 55.2 56.9 46.4 58.2 54.1 46.1 38.7 59.98th Percentile of 24-Hr Conc. 98.24-Hour Design Value Maximum Annual Average 27.Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: KernTable B-63 

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ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.090 0.105 0.080 0.095 0.104 0.070 0.093 0.088-Hour Design Value 0.091 0.096 0.091 0.093 0.093 0.08Maximum 1-Hour Concentration 0.120 0.150 0.103 0.117 0.134 0.085 0.127 0.111-Hour Design Value 0.120 0.130 0.130 0.130 0.121 0.085 0.123 0.11Days Above Nat. 8-Hour Standard 42 55 8 33 54 1 27 2

Peak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour StandardMaximum 1-Hour Concentration 77 60 81-Hour Design Value Maximum Annual Average 11 1

Maximum 24-Hour Concentration 96 128 105 111 89 

Maximum Annual Average 43.6 47.1 40.1 41.9 36.8 

98th Percentile of 24-Hr Conc. 24-Hour Design ValueMaximum Annual Average Annual Design Value

OZONE PM10 PM2.5 CO NO2 SO2

County: Madera

No Monitoring 

Table B-64 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour IndicatorMaximum 1-Hour ConcentrationMaximum 8-Hour ConcentrationDays Above Nat. 8-Hour Standard

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.073 0.081 0.093 0.080 0.116 0.097 0.104 0.098-Hour Design Value 0.080 0.080 0.096 0.097 0.105 0.09

Maximum 1-Hour Concentration 0.100 0.110 0.119 0.096 0.144 0.126 0.143 0.141-Hour Design Value 0.100 0.110 0.113 0.110 0.138 0.138 0.138 0.12Days Above Nat. 8-Hour Standard 1 7 41 11 125 59 57 6

Maximum 1-Hour Concentration 82 94 66 80 86 81-Hour Design Value 68 68 62 6

Maximum Annual Average 15 15 14 14 14 1

Maximum 24-Hour Concentration 178 239 129 279 143 199 146 17Maximum Annual Average 56.7 56.3 50.1 52.9 52 48.2 34.8 52.98th Percentile of 24-Hr Conc. 53.24-Hour Design Value Maximum Annual Average Annual Design Value 

San Joaquin Valley Air BasinCounty: Kings

No Monitoring 

Table B-65 

No Monitoring No Monitoring 

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ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-66 

OZONE

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.102 0.096 0.097 0.107 0.102 0.074 0.112 0.108-Hour Design Value 0.098 0.098 0.100 0.102 0.094 0.096 0.09Maximum 1-Hour Concentration 0.120 0.130 0.123 0.130 0.131 0.102 0.143 0.131-Hour Design Value 0.130 0.130 0.120 0.125 0.125 0.125 0.131 0.13Days Above Nat. 8-Hour Standard 73 49 66 73 78 3 60 7

Peak 8-Hour IndicatorMaximum 1-Hour Concentration 9.0Maximum 8-Hour Concentration 4.8Days Above Nat. 8-Hour Standard 0Maximum 1-Hour Concentration 70 90 76 73 71 72 63 7

1-Hour Design Value 60 59 58 59 57 

Maximum Annual Average 15 14 13 12 12 13 12 1

Maximum 24-Hour Concentration 98 121 131 100 61 13Maximum Annual Average 45.9 42.5 39.2 38.7 30.8 47.98th Percentile of 24-Hr Conc. 91.24-Hour Design Value Maximum Annual Average 

Annual Design Value 

PM10 PM2.5 CO NO2 SO2

San Joaquin Valley Air BasinCounty: Merced

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.087 0.088 0.087 0.091 0.093 0.079 0.089 0.098-Hour Design Value 0.088 0.088 0.087 0.086 0.085 0.087 0.087 0.08Maximum 1-Hour Concentration 0.110 0.130 0.128 0.134 0.140 0.119 0.126 0.141-Hour Design Value 0.120 0.110 0.119 0.124 0.124 0.119 0.115 0.11Days Above Nat. 8-Hour Standard 23 15 19 18 33 7 22 2

Peak 8-Hour Indicator 11.5 9.2 7.6 7.5 7.3 6.2 6.1 6.Maximum 1-Hour Concentration 11.0 10.0 11.3 10.3 11.0 7.7 10.2 11.Maximum 8-Hour Concentration 8.3 6.9 7.8 6.2 7.6 4.2 7.9 7.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 190 160 144 119 88 90 102 101-Hour Design Value 93 90 87 86 83 78 76 8Maximum Annual Average 23 24 24 22 23 22 23 2

Maximum 24-Hour Concentration 145 104 109 109 127 130 106 15Maximum Annual Average 44.8 39.1 36.9 23.2 29.2 29.7 29.1 36.98th Percentile of 24-Hr Conc. 79.24-Hour Design Value Maximum Annual Average 19.Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: San JoaquinTable B-67 

No Monitoring No Monitoring 

File 08 C App B AQ Alm2013 p41-80.indd 75 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual Average

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.102 0.108 0.113 0.104 0.105 0.101 0.109 0.108-Hour Design Value 0.101 0.103 0.106 0.107 0.105 0.100 0.102 0.10Maximum 1-Hour Concentration 0.130 0.150 0.154 0.132 0.140 0.125 0.148 0.121-Hour Design Value 0.130 0.140 0.150 0.150 0.140 0.132 0.139 0.12Days Above Nat. 8-Hour Standard 113 112 110 100 110 89 82 12

Peak 8-Hour Indicator 6.0 5.2 4.4 4.5 4.5 4.2 4.0 4.Maximum 1-Hour Concentration 10.0 7.0 8.7 9.3 5.3 7.3 7.4 7.Maximum 8-Hour Concentration 4.8 4.0 4.4 4.4 4.0 4.1 3.8 4.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 100 120 142 112 77 95 81 91-Hour Design Value 87 87 87 93 85 80 70 7Maximum Annual Average 20 23 23 23 18 19 17 2

Maximum 24-Hour Concentration 122 108 105 128 115 96 160 15Maximum Annual Average 50.5 52.8 47.5 53 44.5 41.5 39.9 54.98th Percentile of 24-Hr Conc. 114.24-Hour Design Value Maximum Annual Average 27.Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Tulare

No Monitoring 

Table B-68 Maximum 1-Hour Concentration1-Hour Design ValueMaximum 24-Hour ConcentrationMaximum Annual AveragePeak 8-Hour Indicator 10.1 9.0 7.7 7.4 7.0 6.0 5.5 6.Maximum 1-Hour Concentration 10.0 11.0 9.5 11.4 9.2 7.1 9.4 11.Maximum 8-Hour Concentration 6.5 8.6 6.4 5.7 6.5 5.0 7.3 6.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.095 0.096 0.091 0.103 0.098 0.089 0.107 0.098-Hour Design Value 0.092 0.086 0.093 0.095 0.096 0.096 0.098 0.09Maximum 1-Hour Concentration 0.120 0.130 0.123 0.131 0.129 0.120 0.153 0.111-Hour Design Value 0.120 0.130 0.120 0.125 0.125 0.125 0.131 0.13Days Above Nat. 8-Hour Standard 42 28 31 36 50 20 48 2

Maximum 1-Hour Concentration 100 110 93 93 87 93 88 101-Hour Design Value 83 80 79 78 76 74 63 6Maximum Annual Average 22 23 23 22 22 21 18 2

Maximum 24-Hour Concentration 150 154 160 240 133 119 125 15Maximum Annual Average 43.6 52.4 41.1 41.3 32 37.1 35.4 41.98th Percentile of 24-Hr Conc. 100.24-Hour Design Value Maximum Annual Average 24.Annual Design Value 

San Joaquin Valley Air BasinCounty: Stanislaus

No Monitoring 

Table B-69 

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ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-70 

OZONE

Maximum 1-Hour Concentration 170.0 570.0 35.0 245.0 251.0 211.0 162.0 157.1-Hour Design Value 103.0 100.0 23.0 25.0 21.0 126.0 130.0 115.Maximum 24-Hour Concentration 21.7 38.3 6.2 36.7 29.2 30.4 30.3 30.Maximum Annual Average 3.2 4.0 1.7 5.8 5.0 4.0 4.5 4.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.075 0.073 0.076 0.078 0.087 0.073 0.098 0.078-Hour Design Value 0.078 0.075 0.074 0.074 0.080 0.079 0.086 0.08Maximum 1-Hour Concentration 0.110 0.100 0.101 0.108 0.141 0.090 0.129 0.091-Hour Design Value 0.100 0.100 0.098 0.097 0.107 0.107 0.114 0.11Days Above Nat. 8-Hour Standard 4 5 9 8 29 3 49 

Peak 8-Hour Indicator 4.2 3.6 3.2 2.9 2.9 2.6 2.6 2.Maximum 1-Hour Concentration 8.0 9.0 6.1 5.7 5.0 6.4 4.4 5.Maximum 8-Hour Concentration 3.1 3.2 3.2 3.1 2.9 2.6 2.3 3.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 60 70 69 69 60 71 61 71-Hour Design Value 60 60 59 54 51 51 51 5Maximum Annual Average 15 14 14 13 13 13 12 1

Maximum 24-Hour Concentration 135 141 78 73 98 99 70 9Maximum Annual Average 43.1 42.8 22.4 39.9 31.7 23.9 25.2 27.98th Percentile of 24-Hr Conc. 26.24-Hour Design Value Maximum Annual Average 9.Annual Design Value 

PM10 PM2.5 CO NO2 SO2

South Central Coast Air BasinCounty: San Luis Obispo

Maximum 1-Hour Concentration 50.0 141.0 95.0 68.0 89.0 58.0 22.0 53.1-Hour Design Value 13.0 20.0 20.0 23.0 21.0 20.0 11.0 7.Maximum 24-Hour Concentration 7.7 19.3 7.3 9.3 9.7 6.1 5.0 7.Maximum Annual Average 1.3 1.7 2.2 1.9 1.3 2.0 1.2 0.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.098 0.086 0.094 0.091 0.098 0.081 0.086 0.078-Hour Design Value 0.096 0.091 0.092 0.090 0.094 0.089 0.087 0.08Maximum 1-Hour Concentration 0.140 0.135 0.142 0.143 0.134 0.137 0.130 0.131-Hour Design Value 0.137 0.123 0.129 0.126 0.130 0.130 0.125 0.10Days Above Nat. 8-Hour Standard 44 42 29 39 40 17 29 1

Peak 8-Hour Indicator 6.4 5.5 5.9 6.0 5.8 5.0 4.8 4.Maximum 1-Hour Concentration 12.0 9.0 10.7 7.8 12.6 8.2 8.5 8.Maximum 8-Hour Concentration 5.9 4.8 6.5 5.8 4.9 4.1 4.6 4.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 100 90 100 113 107 65 89 91-Hour Design Value 60 73 70 70 69 65 63 6Maximum Annual Average 22 22 22 21 19 19 21 2

Maximum 24-Hour Concentration 89 90 139 129 78 168 73 9Maximum Annual Average 32.6 32.9 32.5 31.1 28.6 29.8 25 28.98th Percentile of 24-Hr Conc. 24-Hour Design Value 

Maximum Annual Average 

Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: Santa BarbaraTable B-71 

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ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-72 Maximum 1-Hour Concentration 20.0 13.0 13.0 10.0 8.0 19.0 22.0 12.1-Hour Design Value 10.0 10.0 7.0 9.0 14.0 14.

Maximum 24-Hour Concentration 9.6 10.2 4.6 2.8 3.5 11.3 11.6 6.Maximum Annual Average 0.2 1.0 1.4 0.9 0.9 2.4 2.2 1.

Peak 8-Hour Indicator 4.5 3.9 3.6 4.0 4.0 3.9 3.6 3.Maximum 1-Hour Concentration 7.0 9.0 7.7 8.9 7.8 7.4 7.2 6.Maximum 8-Hour Concentration 3.0 3.7 4.2 4.3 3.4 3.8 3.5 3.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.112 0.111 0.117 0.123 0.118 0.105 0.113 0.108-Hour Design Value 0.118 0.115 0.112 0.117 0.119 0.115 0.112 0.10Maximum 1-Hour Concentration 0.150 0.146 0.164 0.169 0.158 0.134 0.174 0.131-Hour Design Value 0.150 0.150 0.146 0.157 0.158 0.152 0.144 0.13Days Above Nat. 8-Hour Standard 88 69 103 103 100 78 57 5

Maximum 1-Hour Concentration 100 110 133 127 110 115 97 91-Hour Design Value 87 84 84 89 74 82 73 7Maximum Annual Average 22 23 24 24 22 20 19 2

Maximum 24-Hour Concentration 84 118 86 94 93 321 110 8Maximum Annual Average 33.2 29.1 31.6 28.4 29.9 37 24.4 31.98th Percentile of 24-Hr Conc. 35.24-Hour Design Value Maximum Annual Average 13.Annual Design Value 

South Central Coast Air BasinCounty: Ventura

File 08 C App B AQ Alm2013 p41-80.indd 78 
ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-73 

OZONE

Maximum 1-Hour Concentration 150.0 80.0 40.0 138.0 61.0 96.0 90.0 88.1-Hour Design Value 57.0 63.0 56.0 43.0 41.0 41.0 33.0 39.Maximum 24-Hour Concentration 32.6 13.9 9.8 17.9 11.9 13.9 12.3 19.Maximum Annual Average 5.7 3.6 4.1 3.9 3.6 3.5 4.0 4.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.183 0.172 0.152 0.147 0.139 0.120 0.140 0.098-Hour Design Value 0.177 0.177 0.168 0.156 0.145 0.135 0.133 0.11Maximum 1-Hour Concentration 0.300 0.280 0.300 0.216 0.205 0.170 0.222 0.151-Hour Design Value 0.300 0.300 0.280 0.250 0.223 0.209 0.200 0.18Days Above Nat. 8-Hour Standard 163 136 131 118 98 71 56 4

Peak 8-Hour Indicator 17.7 16.5 16.7 15.6 16.1 15.5 15.4 13.Maximum 1-Hour Concentration 28.0 21.0 24.9 16.8 22.5 19.2 17.0 19.Maximum 8-Hour Concentration 18.8 14.6 18.2 13.8 17.5 17.1 13.3 11.Days Above Nat. 8-Hour Standard 34 19 19 14 19 13 10Maximum 1-Hour Concentration 300 260 247 239 250 200 170 211-Hour Design Value 223 190 171 168 151 138 127 13Maximum Annual Average 51 50 50 46 42 43 43 5

Maximum 24-Hour Concentration 222 104 127 157 138 116 87 10Maximum Annual Average 48.8 47.4 45.3 47.7 45.5 46.1 40.6 56.98th Percentile of 24-Hr Conc. 64.24-Hour Design Value Maximum Annual Average 25.Annual Design Value 

PM10 PM2.5 CO NO2 SO2

South Coast Air BasinCounty: Los Angeles

Maximum 1-Hour Concentration 30.0 90.0 20.0 21.0 13.0 34.0 20.0 16.1-Hour Design Value 23.0 20.0 15.0 16.0 11.0 11.0 10.0 12.Maximum 24-Hour Concentration 9.1 9.6 6.6 6.2 4.1 7.2 5.6 6.Maximum Annual Average 1.1 0.8 2.3 2.8 0.7 0.9 1.4 2.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.123 0.110 0.118 0.095 0.090 0.082 0.093 0.078-Hour Design Value 0.120 0.114 0.117 0.107 0.100 0.088 0.088 0.08Maximum 1-Hour Concentration 0.220 0.190 0.252 0.160 0.150 0.134 0.182 0.111-Hour Design Value 0.210 0.190 0.190 0.170 0.156 0.138 0.144 0.13Days Above Nat. 8-Hour Standard 49 46 31 21 16 11 16 

Peak 8-Hour Indicator 9.4 8.8 8.7 8.2 8.5 7.3 6.7 6.Maximum 1-Hour Concentration 21.0 15.0 16.1 12.7 12.9 11.9 15.0 11.Maximum 8-Hour Concentration 9.4 7.7 8.6 8.0 7.4 6.0 7.1 6.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 210 200 230 192 160 145 135 161-Hour Design Value 167 157 143 138 133 120 108 11Maximum Annual Average 39 39 41 39 35 33 34 3

Maximum 24-Hour Concentration 88 115 106 172 101 91 81 12Maximum Annual Average 40 38.3 37.5 43.5 35.2 38.8 35.8 36.98th Percentile of 24-Hr Conc. 63.24-Hour Design Value Maximum Annual Average Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: OrangeTable B-74 

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ARB Almanac 2013 – Appendix B: County Level Emissions and Air Quality by Air Basin 

Table B-75 Maximum 1-Hour Concentration 20.0 20.0 17.0 12.0 10.0 36.0 31.0 34.1-Hour Design Value 10.0 13.0 14.0 14.0 10.0 12.0 15.0 18.Maximum 24-Hour Concentration 5.2 12.6 4.3 4.4 4.3 4.7 9.7 11.Maximum Annual Average 0.2 0.9 1.1 0.9 0.8 1.3 1.4 1.Peak 8-Hour Indicator 6.9 6.6 6.3 6.2 6.2 5.9 5.3 4.Maximum 1-Hour Concentration 11.0 10.0 11.0 9.0 9.1 10.7 6.4 7.Maximum 8-Hour Concentration 6.1 7.1 7.3 6.3 5.3 5.6 4.8 4.Days Above Nat. 8-Hour Standard 0000000

OZONE PM10 PM2.5 CO NO2 SO2

Maximum 1-Hour Concentration 20.0 10.0 31.0 24.0 11.0 8.0 15.0 16.1-Hour Design Value 13.0 13.0 14.0 11.0 10.0 8.0 

Maximum 24-Hour Concentration 10.4 1.3 8.5 6.5 4.7 0.6 10.7 8.Maximum Annual Average 1.2 0.0 0.7 1.1 0.3 0.0 0.9 2.

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.183 0.170 0.163 0.166 0.154 0.127 0.183 0.138-Hour Design Value 0.180 0.177 0.171 0.165 0.161 0.148 0.154 0.14Maximum 1-Hour Concentration 0.280 0.270 0.265 0.256 0.239 0.205 0.244 0.171-Hour Design Value 0.270 0.250 0.250 0.234 0.231 0.215 0.217 0.21Days Above Nat. 8-Hour Standard 179 177 157 134 130 119 113 10

Peak 8-Hour Indicator 6.7 6.1 5.5 6.4 6.3 6.1 5.1 4.Maximum 1-Hour Concentration 7.0 7.0 7.6 7.7 5.8 7.6 6.3 5.Maximum 8-Hour Concentration 5.9 6.0 6.4 6.3 4.5 5.9 4.7 4.Days Above Nat. 8-Hour Standard 0000000Maximum 1-Hour Concentration 140 160 177 199 163 153 154 141-Hour Design Value 133 130 126 139 136 127 112 10Maximum Annual Average 40 42 41 46 38 36 36 3

Maximum 24-Hour Concentration 649 143 210 178 136 208 114 18Maximum Annual Average 79 58.3 59.9 60.8 54.9 53.6 50.2 65.98th Percentile of 24-Hr Conc. 85.24-Hour Design Value Maximum Annual Average 25.Annual Design Value 

OZONE PM10 PM2.5 CO NO2 SO2

County: San BernardinoTable B-76 

1992 1993 1994 1995 1996 1997 1998 199

Annual 4th High 8-Hour 0.165 0.158 0.148 0.142 0.130 0.135 0.135 0.118-Hour Design Value 0.169 0.165 0.157 0.149 0.140 0.129 0.127 0.12Maximum 1-Hour Concentration 0.260 0.260 0.253 0.213 0.203 0.187 0.195 0.141-Hour Design Value 0.250 0.240 0.240 0.220 0.200 0.187 0.187 0.17Days Above Nat. 8-Hour Standard 154 155 147 129 111 145 88 9

Maximum 1-Hour Concentration 230 140 181 147 110 200 255 301-Hour Design Value 123 113 105 104 102 97 92 9Maximum Annual Average 30 30 31 30 29 26 22 2

Maximum 24-Hour Concentration 126 231 161 219 162 163 116 15Maximum Annual Average 62.6 72.5 65.5 68.8 62.8 65.6 58.7 72.98th Percentile of 24-Hr Conc. 75.24-Hour Design Value Maximum Annual Average 30.Annual Design Value 

South Coast Air BasinCounty: Riverside

File 08 C App B AQ Alm2013 p41-80.indd 80