District 1 County Site 1-hour Design 

Value (ppb) 2

Annual Average 

Design Value (ppb) 3

Bay Area AQMD Alameda Berkeley-6th Street * 13

Fremont-Chapel Way 47 13

Livermore-793 Rincon Avenue 47 12

Oakland-9925 International Blvd * 14

Oakland-West * 16

Contra Costa Bethel Island Road 31 6

Concord-2975 Treat Blvd 37 9

Pittsburg-10th Street * *

San Pablo-Rumrill Blvd * *

Marin San Rafael 45 12

Napa Napa-Jefferson Avenue 39 10

San Francisco San Francisco-Arkansas Street 54 15

San Mateo Redwood City 46 12

Santa Clara San Jose-Jackson Street 53 15

Solano Benicia-East 2nd Street * *

Vallejo-304 Tuolumne Street 42 10

Sonoma Santa Rosa-5th Street 38 9

Butte County APCD Butte Chico-Manzanita Avenue 38 8

Feather River AQMD Sutter Yuba City-Almond Street 49 9

Imperial County APCD Imperial Calexico-East 71 11

Calexico-Ethel Street 72 14

El Centro-9th Street 50 8

Mariposa County APCD Mariposa Yosemite Natl Park-Turtleback Dome * no data

Mendocino County APCD Mendocino Ukiah-E Gobbi Street 32 5

Willits-899 S Main Street * no data

Mojave Desert AQMD San Bernardino Barstow 63 16

Trona-Athol and Telegraph 43 4

Victorville-14306 Park Avenue 62 15

Monterey Bay Unified APCD Monterey Salinas-High School 34 6

Santa Cruz Davenport 22 2

North Coast Unified AQMD Humboldt Eureka-Jacobs * 3

Northern Sierra APCD Nevada Grass Valley-Litton Building * *

Placer County APCD Placer Roseville-N Sunrise Blvd 53 10

Sacramento Metropolitan AQMD Sacramento Elk Grove-Bruceville Road 36 7

Folsom-Natoma Street 33 6

North Highlands-Blackfoot Way * 10

Sacramento-3801 Airport Road * no data

Sacramento-Del Paso Manor 46 10

Sacramento-Goldenland Court * 11

Sacramento-T Street 56 13

San Diego County AQMD San Diego Alpine-Victoria Drive * 8

Camp Pendleton 59 10

Chula Vista 59 13

El Cajon-Redwood Avenue 53 14

Escondido-E Valley Parkway 63 16

Otay Mesa-Paseo International 85 21

San Diego-1110 Beardsley Street 70 17

San Diego-Overland Avenue 56 14

San Joaquin Valley Unified APCD Fresno Clovis-N Villa Avenue * 11

Fresno-1st Street 57 14

Fresno-Drummond Street 61 14

Fresno-Sierra Skypark #2 * 7

Parlier 39 9

Kern Arvin-Bear Mountain Blvd 32 5

Bakersfield-5558 California Avenue 61 16

Bakersfield-Golden State Highway 59 18

Edison 40 8

Shafter-Walker Street 53 12

Kings Hanford-S Irwin Street * no data

Madera Madera-Pump Yard 40 9

Merced Merced-S Coffee Avenue 43 8

San Joaquin Stockton-Hazelton Street 58 15

Tracy-Airport 39 8

Stanislaus Turlock-S Minaret Street 49 11

Tulare Visalia-N Church Street 61 15

NO2 DESIGN VALUES BY SITE

ENCLOSURE 3

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District 1 County Site 1-hour Design 

Value (ppb) 2

Annual Average 

Design Value (ppb) 3

NO2 DESIGN VALUES BY SITE

ENCLOSURE 3

San Luis Obispo County APCD San Luis Obispo Atascadero-Lewis Avenue 42 7

Morro Bay 35 3

Nipomo-Regional Park 29 3

Santa Barbara County APCD Santa Barbara Carpinteria-Gobernador Road 18 2

El Capitan Beach 30 4

Gaviota-GTC Site B 23 4

Goleta-Fairview 35 7

Las Flores Canyon #1 14 2

Lompoc-HSandP 7 2

Lompoc-S H Street 28 4

Paradise Road-Los Padres National Forest 6 1

Santa Barbara-700 East Canon Perdido * 10

Santa Maria-906 S Broadway * 9

Vandenberg Air Force Base-STS Power 9 1

South Coast AQMD Los Angeles Azusa 78 19

Burbank-W Palm Avenue 75 27

Compton-700 North Bullis Road * 21

Glendora-Laurel 70 *

Los Angeles-North Main Street * 28

Los Angeles-Westchester Parkway * *

Lynwood * no data

North Long Beach 78 21

Pasadena-S Wilson Avenue 70 22

Pico Rivera-4144 San Gabriel * 26

Pomona 81 27

Reseda 60 17

Santa Clarita 57 15

West Los Angeles-VA Hospital 63 17

Orange Anaheim-Pampas Lane 65 18

Costa Mesa-Mesa Verde Drive 60 13

La Habra 69 21

Riverside Banning Airport 58 11

Lake Elsinore-W Flint Street 48 13

Mira Loma Van Buren * 16

Mira Loma -10551 Bellegrave * *

Palm Springs-Fire Station 45 8

Riverside-Magnolia * 20

Riverside-Rubidoux 63 17

San Bernardino Fontana-Arrow Highway 74 24

San Bernardino-4th Street 64 20

Upland 70 24

Ventura County APCD Ventura El Rio-Rio Mesa School #2 38 8

Simi Valley-Cochran Street 45 11

Yolo-Solano APCD Yolo Davis-UCD Campus 36 7

2

 The 1-hour design value is the 98th percentile concentration averaged over the 3-year period.

3

 The annual average is calculated by averaging all hourly NO2 concentrations measured during a year

1

 The following Districts have no data: Antelope Valley AQMD, Amador County APCD, Calaveras County APCD, Colusa County APCD, Eastern 

Kern APCD, El Dorado County AQMD, Glenn County APCD, Great Basin Unified APCD, Lake County AQMD, Lassen County APCD, Modoc County 

APCD, Northern Sonoma County APCD, Shasta County AQMD, Siskiyou County APCD, Tehama County APCD, Tuolumne County APCD

* Site does not have valid data. A site must have valid data to be used for designations. The 1-hour standard design 

value is valid if it encompasses three consecutive calendar years of complete data. The annual standard design value is 

valid when at least 75 percent of the hours in the year are reported.

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