2008 PM2.5 Plan 

Appendix B 

 

Emissions Inventory 
2008 PM2.5 Plan 

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San Joaquin Valley Unified Air Pollution Control District April 30, 2008

Appendix B: Emissions Inventory 

2008 PM2.5 Plan 

Appendix B-1 

Appendix B: Emissions Inventory

B.1 INTRODUCTION 

Emissions inventories provide the best available estimates of the amount of pollutants 

and precursors being emitted into the atmosphere. Emissions inventories undergo 

continuous updating and changing to improve accuracy, respond to new scientific and 

engineering developments, and to address changes to laws and regulations. A 

snapshot of the inventory is used to develop air quality plans. At the time the snapshot 

is taken, it reflects the best inventory available. The “snapshot” used as the starting 

point for this plan is ARB’s PM 2.5 SIP Planning Projections, based on CEFS v1.06. 

This plan utilizes annual average and winter average daily inventories, with emissions 

presented as tons per day (tpd). 

The inventories in this chapter are “planning inventories” used to study and propose 

control measures (Appendix I and Chapter 6), to track emissions for Rate of Progress 

(Chapter 8), to track ERCs (Appendix D), to establish motor vehicle conformity budgets 

for transportation planning (Appendix C), and to assist in demonstrating attainment 

(Chapter 10). In contrast, the “modeling inventory” provides day-specific information 

used as inputs for the regional model (Chapter 3 and the Modeling Protocol). While the 

planning and modeling inventories are based on the same basic information, they may 

have different cutoff dates for the inclusion of control measures (i.e., control measures 

adopted past the cutoff date are not reflected in the inventories and must be subtracted 

from the results of inventory runs and model runs). 

This Appendix includes emissions inventories for the San Joaquin Valley Air Basin for 

the years 2005, 2009, 2010, 2011, 2012, 2013, and 2014. The baseyear (the year from 

which the inventory is projected forward and backward) for these inventories is 2002. 

The year 2005 has been included for control measure development and as the 

reference year for gridded modeling (see Chapter 3). The years 2009, 2010, 2011, 

2012, 2013, and 2014 are possible PM2.5 compliance years for attainment. The years 

2009 and 2012 are also RFP years (see Chapter 8). Results from EMFAC2007 have 

been incorporated into the mobile source portion of the inventories. 

The tables in this appendix include: 

• Table B-1 Directly emitted PM2.5, Annual and Winter Daily Averages 

• Table B-2 NOx, Annual and Winter Daily Averages 

• Table B-3 SO2, Annual and Winter Daily Averages

• Table B-4 VOC, Annual and Winter Daily Averages 

• Table B-5 Ammonia, Annual and Winter Daily Averages 

The December 2007 Draft 2008 PM2.5 Plan contained tables of ARB and District 

adjustments for methodology revisions and control measures adopted between May 

2005 and December 2006. This information has now been incorporated into the 
San Joaquin Valley Unified Air Pollution Control District April 30, 2008

Appendix B: Emissions Inventory 

2008 PM2.5 Plan 

Appendix B-2 

baseline inventory, so adjustment tables have been removed. Tables B-1 through B-5 

are followed by an overview of emissions inventory calculations and revisions. 

 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-3 B.2 EMISSIONS INVENTORY TABLES 

Table B-1 Directly Emitted PM2.5, Annual and Winter Daily Averages 

(in tons per day) 

Directly Emitted PM2.5 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

STATIONARY SOURCES FUEL COMBUSTION ELECTRIC UTILITIES 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.6 COGENERATION 1.1 1.2 1.2 1.2 1.2 1.2 1.2 1.1 1.2 1.2 OIL AND GAS PRODUCTION (COMBUSTION) 1.1 1.0 1.0 1.0 1.0 1.0 1.1 1.1 1.0 1.0 PETROLEUM REFINING (COMBUSTION) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MANUFACTURING AND INDUSTRIAL 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.6 FOOD AND AGRICULTURAL PROCESSING 1.3 1.2 1.2 1.1 1.1 1.1 1.0 0.9 0.8 0.8 SERVICE AND COMMERCIAL 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 OTHER (FUEL COMBUSTION) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 * TOTAL FUEL COMBUSTION 5.1 5.0 5.0 5.0 5.0 5.0 5.0 4.6 4.6 4.6 WASTE DISPOSAL SEWAGE TREATMENT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 LANDFILLS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 INCINERATORS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SOIL REMEDIATION 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 OTHER (WASTE DISPOSAL) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL WASTE DISPOSAL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 CLEANING AND SURFACE COATINGS LAUNDERING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 DEGREASING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-4 

Directly Emitted PM2.5 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

COATINGS AND RELATED PROCESS SOLVENTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PRINTING 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.1 ADHESIVES AND SEALANTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (CLEANING AND SURFACE COATINGS) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL CLEANING AND SURFACE COATINGS 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 PETROLEUM PRODUCTION AND MARKETING OIL AND GAS PRODUCTION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PETROLEUM REFINING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PETROLEUM MARKETING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (PETROLEUM PRODUCTION AND MARKETING) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL PETROLEUM PRODUCTION AND MARKETING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 INDUSTRIAL PROCESSES CHEMICAL 2.3 2.5 2.6 2.7 2.7 2.8 2.9 2.3 2.5 2.6 FOOD AND AGRICULTURE 2.4 2.3 2.3 2.3 2.3 2.3 2.3 2.4 2.3 2.2 MINERAL PROCESSES 1.8 1.9 1.9 2.0 2.0 2.0 2.0 1.7 1.8 1.9 METAL PROCESSES 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.2 WOOD AND PAPER 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.5 GLASS AND RELATED PRODUCTS 1.0 1.1 1.1 1.1 1.2 1.2 1.2 1.0 1.1 1.1 OTHER (INDUSTRIAL PROCESSES) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 * TOTAL INDUSTRIAL PROCESSES 8.1 8.6 8.7 8.8 8.9 9.1 9.2 8.0 8.4 8.6 ** TOTAL STATIONARY SOURCES 13.3 13.8 13.9 14.0 14.2 14.3 14.4 12.8 13.3 13.4 1AREA-WIDE SOURCES SOLVENT EVAPORATION CONSUMER PRODUCTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ARCHITECTURAL COATINGS AND 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-5 

Directly Emitted PM2.5 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

RELATED PROCESS SOLVENTS PESTICIDES/FERTILIZERS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ASPHALT PAVING / ROOFING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL SOLVENT EVAPORATION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MISCELLANEOUS PROCESSES RESIDENTIAL FUEL COMBUSTION 10.7 8.9 8.7 8.3 7.9 7.5 7.2 20.7 17.3 16.9 1FARMING OPERATIONS 8.3 8.3 8.3 8.3 8.3 8.3 8.3 5.9 5.9 5.9 CONSTRUCTION AND DEMOLITION 1.1 1.2 1.2 1.1 1.1 1.1 1.1 1.0 1.1 1.1 PAVED ROAD DUST 5.3 5.4 5.5 5.5 5.5 5.5 5.6 4.9 5.1 5.1 UNPAVED ROAD DUST 3.8 3.8 3.8 3.8 3.8 3.8 3.8 2.8 2.7 2.7 FUGITIVE WINDBLOWN DUST 7.2 7.0 7.0 7.0 7.0 6.9 6.9 4.5 4.4 4.4 FIRES 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MANAGED BURNING AND DISPOSAL 12.2 9.2 9.1 9.1 9.1 9.1 9.0 11.9 11.7 11.6 1COOKING 2.7 2.8 2.9 2.9 3.0 3.0 3.1 2.7 2.8 2.9 OTHER (MISCELLANEOUS PROCESSES) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL MISCELLANEOUS PROCESSES 51.5 46.8 46.6 46.1 45.8 45.5 45.2 54.6 51.2 50.7 4** TOTAL AREA-WIDE SOURCES 51.5 46.8 46.6 46.1 45.8 45.5 45.2 54.6 51.2 50.7 4MOBILE SOURCES ON-ROAD MOTOR VEHICLES LIGHT DUTY PASSENGER (LDA) 0.8 0.7 0.9 0.9 0.8 0.9 0.8 0.8 0.8 0.9 LIGHT DUTY TRUCKS - 1 (LDT1) 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 LIGHT DUTY TRUCKS - 2 (LDT2) 0.6 0.7 0.7 0.8 0.8 0.8 0.8 0.6 0.7 0.7 MEDIUM DUTY TRUCKS (MDV)LIGHT HEAVY DUTY GAS TRUCKS - 1 (LHDV1) 0.3 0.4 0.4 0.4 0.4 0.5 0.5 0.3 0.4 0.4 HEAVY HEAVY DUTY GAS TRUCKS (HHDV) 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0 0.0 LIGHT HEAVY DUTY GAS TRUCKS - 2(LHDV2) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-6 

Directly Emitted PM2.5 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

MEDIUM HEAVY DUTY GAS TRUCKS (MHDV) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY HEAVY DUTY GAS TRUCKS (HHDV) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 LIGHT HEAVY DUTY DIESEL TRUCKS- 1 (LHDV1) 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 LIGHT HEAVY DUTY DIESEL TRUCKS- 2 (LHDV2) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MEDIUM HEAVY DUTY DIESEL TRUCKS (MHDV) 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.5 HEAVY HEAVY DUTY DIESEL TRUCKS (HHDV) 9.1 8.3 7.6 7.0 6.7 6.0 5.7 9.1 8.4 7.6 MOTORCYCLES (MCY) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY DUTY DIESEL URBAN BUSES (UB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY DUTY GAS URBAN BUSES (UB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SCHOOL BUSES (SB) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 OTHER BUSES (OB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MOTOR HOMES (MH) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL ON-ROAD MOTOR VEHICLES 12.1 11.3 10.8 10.3 9.9 9.3 8.9 12.2 11.4 10.8 1OTHER MOBILE SOURCES AIRCRAFT 1.3 1.4 1.4 1.5 1.5 1.5 1.6 1.3 1.4 1.4 TRAINS 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.5 SHIPS AND COMMERCIAL BOATS 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 RECREATIONAL BOATS 0.5 0.6 0.6 0.7 0.7 0.7 0.8 0.2 0.2 0.2 OFF-ROAD RECREATIONAL VEHICLES 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 OFF-ROAD EQUIPMENT 3.5 2.9 2.7 2.5 2.3 2.1 2.0 3.5 2.8 2.7 FARM EQUIPMENT 3.0 2.4 2.3 2.2 2.0 1.8 1.6 2.3 1.9 1.8 FUEL STORAGE AND HANDLING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-7 

Directly Emitted PM2.5 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

* TOTAL OTHER MOBILE SOURCES 9.0 7.9 7.7 7.5 7.2 6.8 6.6 8.1 7.0 6.8 ** TOTAL MOBILE SOURCES 21.1 19.2 18.5 17.8 17.0 16.1 15.4 20.2 18.4 17.6 1GRAND TOTAL FOR SAN JOAQUIN VALLEY 86.0 79.8 79.0 77.9 77.0 75.9 75.0 87.6 82.9 81.7 8

Table B-2 NOx, Annual and Winter Daily Averages 

(in tons per day) 

NOx (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

STATIONARY SOURCES FUEL COMBUSTION ELECTRIC UTILITIES 3.3 3.0 3.1 3.1 3.1 3.2 3.2 3.2 3.0 3.1 COGENERATION 10.0 7.3 7.3 7.3 7.4 7.4 7.5 10.0 7.3 7.3 OIL AND GAS PRODUCTION (COMBUSTION) 11.2 10.1 10.0 9.9 9.9 9.8 9.8 11.2 10.1 10.0 PETROLEUM REFINING (COMBUSTION) 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 MANUFACTURING AND INDUSTRIAL 5.5 5.5 5.6 5.7 5.8 5.9 6.1 5.3 5.3 5.4 FOOD AND AGRICULTURAL PROCESSING 24.2 13.3 11.4 10.1 8.8 7.5 6.2 16.0 8.7 7.5 SERVICE AND COMMERCIAL 2.7 2.7 2.7 2.7 2.8 2.8 2.8 3.3 3.3 3.3 OTHER (FUEL COMBUSTION) 1.4 1.2 1.2 1.2 1.1 1.1 1.1 1.3 1.1 1.1 * TOTAL FUEL COMBUSTION 58.6 43.3 41.5 40.2 39.0 37.8 36.6 50.5 38.9 37.8 3WASTE DISPOSAL 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-8 

NOx (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

SEWAGE TREATMENT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 LANDFILLS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 INCINERATORS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SOIL REMEDIATION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (WASTE DISPOSAL) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL WASTE DISPOSAL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.1 0.1 CLEANING AND SURFACE COATINGS LAUNDERING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 DEGREASING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 COATINGS AND RELATED PROCESS SOLVENTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PRINTING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ADHESIVES AND SEALANTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (CLEANING AND SURFACE COATINGS) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL CLEANING AND SURFACE COATINGS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PETROLEUM PRODUCTION AND MARKETING OIL AND GAS PRODUCTION 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 PETROLEUM REFINING 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 PETROLEUM MARKETING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (PETROLEUM PRODUCTION AND MARKETING) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL PETROLEUM PRODUCTION AND MARKETING 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 INDUSTRIAL PROCESSES CHEMICAL 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.3 0.3 0.3 FOOD AND AGRICULTURE 9.1 9.0 9.0 8.9 8.9 8.9 8.8 9.1 9.0 8.9 MINERAL PROCESSES 2.3 2.5 2.5 2.6 2.6 2.7 2.8 2.3 2.5 2.5 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-9 

NOx (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

METAL PROCESSES 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 WOOD AND PAPER 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 GLASS AND RELATED PRODUCTS 9.4 8.2 8.4 8.6 8.7 8.9 9.1 9.4 8.2 8.4 OTHER (INDUSTRIAL PROCESSES) 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Extra-inventory Reductions (District Rules) -0.3 -1.2 -1.3 -1.5 -1.6 -1.7 -1.8 0.0 -1.1 -1.2 * TOTAL INDUSTRIAL PROCESSES 21.1 19.0 19.1 19.2 19.3 19.4 19.5 21.2 19.0 19.2 1** TOTAL STATIONARY SOURCES 80.1 62.7 61.1 59.9 58.7 57.7 56.5 71.9 58.5 57.5 5AREA-WIDE SOURCES SOLVENT EVAPORATION CONSUMER PRODUCTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ARCHITECTURAL COATINGS AND RELATED PROCESS SOLVENTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PESTICIDES/FERTILIZERS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ASPHALT PAVING / ROOFING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL SOLVENT EVAPORATION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MISCELLANEOUS PROCESSES RESIDENTIAL FUEL COMBUSTION 6.3 6.0 6.0 5.9 5.9 5.8 5.8 9.6 9.0 9.0 FARMING OPERATIONS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 CONSTRUCTION AND DEMOLITION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PAVED ROAD DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 UNPAVED ROAD DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FUGITIVE WINDBLOWN DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FIRES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MANAGED BURNING AND DISPOSAL 7.1 5.0 5.0 5.0 4.9 4.9 4.9 8.5 7.2 7.2 COOKING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (MISCELLANEOUS PROCESSES) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL MISCELLANEOUS PROCESSES 13.5 11.0 11.0 10.9 10.8 10.8 10.7 18.2 16.3 16.2 1
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-10 

NOx (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

** TOTAL AREA-WIDE SOURCES 13.5 11.0 11.0 10.9 10.8 10.8 10.7 18.2 16.3 16.2 1MOBILE SOURCES ON-ROAD MOTOR VEHICLES LIGHT DUTY PASSENGER (LDA) 22.2 14.5 14.5 13.2 10.9 10.8 8.9 24.0 17.5 15.7 1LIGHT DUTY TRUCKS - 1 (LDT1) 10.0 7.4 6.7 6.1 5.8 5.1 4.9 10.7 7.9 7.2 LIGHT DUTY TRUCKS - 2 (LDT2) 19.8 15.0 13.8 12.8 12.2 11.0 10.4 21.4 16.3 14.9 1MEDIUM DUTY TRUCKS (MDV)LIGHT HEAVY DUTY GAS TRUCKS - 1 (LHDV1) 13.4 10.3 9.5 8.9 8.6 7.8 7.5 14.5 11.1 10.2 HEAVY HEAVY DUTY GAS TRUCKS (HHDV) 4.7 4.1 4.0 3.9 4.0 3.9 3.9 5.0 4.4 4.2 LIGHT HEAVY DUTY GAS TRUCKS - 2(LHDV2) 1.0 1.0 1.0 1.0 1.0 0.9 0.9 1.1 1.0 1.0 MEDIUM HEAVY DUTY GAS TRUCKS (MHDV) 2.2 1.8 1.7 1.6 1.6 1.4 1.4 2.3 1.9 1.8 HEAVY HEAVY DUTY GAS TRUCKS (HHDV) 2.5 2.0 1.9 1.9 1.8 1.7 1.7 2.7 2.2 2.1 LIGHT HEAVY DUTY DIESEL TRUCKS- 1 (LHDV1) 5.4 3.8 3.4 3.2 3.1 2.8 2.8 5.6 3.9 3.5 LIGHT HEAVY DUTY DIESEL TRUCKS- 2 (LHDV2) 3.3 2.9 2.7 2.5 2.4 2.2 2.1 3.4 3.0 2.7 MEDIUM HEAVY DUTY DIESEL TRUCKS (MHDV) 21.3 18.1 16.8 15.6 14.9 13.2 12.5 22.0 18.7 17.4 1HEAVY HEAVY DUTY DIESEL TRUCKS (HHDV) 213.4 210.3 191.9 177.9 170.1 150.3 142.1 220.2 217.0 198.0 18MOTORCYCLES (MCY) 1.4 1.5 1.5 1.5 1.5 1.5 1.6 1.6 1.6 1.6 HEAVY DUTY DIESEL URBAN BUSES (UB) 2.2 2.3 2.3 2.4 2.5 2.4 2.4 2.3 2.4 2.4 HEAVY DUTY GAS URBAN BUSES (UB) 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 SCHOOL BUSES (SB) 2.4 2.3 2.3 2.1 2.2 2.0 1.9 2.5 2.3 2.3 OTHER BUSES (OB) 1.1 1.0 1.0 0.9 0.9 0.8 0.8 1.1 1.1 1.0 MOTOR HOMES (MH) 1.1 1.0 1.0 0.9 0.9 0.8 0.8 1.2 1.1 1.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-11 

NOx (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

Extra-inventory Reductions (District Rules): ISR on-road 0.0 -2.2 -1.8 -1.3 -1.1 -0.8 -0.4 0.0 -2.2 -1.8 * TOTAL ON-ROAD MOTOR VEHICLES 327.9 297.4 274.4 255.4 243.8 218.3 206.7 342.1 311.5 285.7 26OTHER MOBILE SOURCES AIRCRAFT 3.0 4.2 4.3 4.5 4.6 4.7 4.8 3.0 4.2 4.3 TRAINS 23.6 20.9 20.0 20.4 20.5 20.6 20.7 23.6 20.9 20.0 2SHIPS AND COMMERCIAL BOATS 1.0 1.1 1.0 1.0 1.0 1.0 1.0 1.0 1.1 1.0 RECREATIONAL BOATS 3.2 3.5 3.5 3.5 3.5 3.5 3.5 1.3 1.4 1.4 OFF-ROAD RECREATIONAL VEHICLES 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 OFF-ROAD EQUIPMENT 70.4 58.8 55.7 52.7 49.8 47.0 44.3 70.8 59.1 56.0 5FARM EQUIPMENT 52.5 43.4 41.7 39.4 36.6 33.9 31.5 41.1 33.9 32.6 3FUEL STORAGE AND HANDLING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Extra-inventory Reductions (District Rules): ISR Off-road reductions 0.0 -2.3 -3.4 -4.6 -5.2 -4.5 -3.8 0.0 -2.3 -3.4 * TOTAL OTHER MOBILE SOURCES 153.9 129.7 123.0 117.1 111.1 106.3 102.2 141.0 118.4 112.1 10** TOTAL MOBILE SOURCES 481.8 427.1 397.4 372.5 354.8 324.6 308.9 483.0 429.9 397.8 37GRAND TOTAL FOR SAN JOAQUIN VALLEY 575.4 500.9 469.5 443.3 424.4 393.1 376.2 573.1 504.7 471.5 44
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-12 

Table B-3 SO2, Annual and Winter Daily Averages 

(in tons per day) 

SO2 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

STATIONARY SOURCES FUEL COMBUSTION ELECTRIC UTILITIES 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 0.8 0.9 COGENERATION 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.7 0.7 OIL AND GAS PRODUCTION (COMBUSTION) 2.3 2.3 2.2 2.2 2.3 2.3 2.3 2.3 2.3 2.2 PETROLEUM REFINING (COMBUSTION) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MANUFACTURING AND INDUSTRIAL 6.0 6.3 6.4 6.6 6.7 6.8 7.0 6.0 6.3 6.4 FOOD AND AGRICULTURAL PROCESSING 1.9 1.9 1.9 1.9 1.9 1.9 1.8 1.3 1.3 1.3 SERVICE AND COMMERCIAL 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 OTHER (FUEL COMBUSTION) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL FUEL COMBUSTION 12.7 13.0 13.1 13.3 13.4 13.5 13.7 12.0 12.3 12.5 1WASTE DISPOSAL SEWAGE TREATMENT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 LANDFILLS 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 INCINERATORS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SOIL REMEDIATION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (WASTE DISPOSAL) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL WASTE DISPOSAL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 CLEANING AND SURFACE COATINGS LAUNDERING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 DEGREASING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 COATINGS AND RELATED PROCESS SOLVENTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PRINTING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-13 

SO2 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

ADHESIVES AND SEALANTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (CLEANING AND SURFACE COATINGS) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL CLEANING AND SURFACE COATINGS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PETROLEUM PRODUCTION AND MARKETING OIL AND GAS PRODUCTION 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 PETROLEUM REFINING 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 PETROLEUM MARKETING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (PETROLEUM PRODUCTION AND MARKETING) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL PETROLEUM PRODUCTION AND MARKETING 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.6 0.6 INDUSTRIAL PROCESSES CHEMICAL 0.9 1.0 1.0 1.0 1.1 1.1 1.1 0.9 1.0 1.0 FOOD AND AGRICULTURE 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 MINERAL PROCESSES 1.5 1.6 1.7 1.7 1.7 1.8 1.8 1.5 1.6 1.6 METAL PROCESSES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 WOOD AND PAPER 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 GLASS AND RELATED PRODUCTS 3.8 3.5 3.6 3.7 3.8 3.9 3.9 3.8 3.8 3.9 OTHER (INDUSTRIAL PROCESSES) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 * TOTAL INDUSTRIAL PROCESSES 7.1 7.0 7.2 7.3 7.4 7.6 7.7 6.9 7.1 7.2 ** TOTAL STATIONARY SOURCES 20.4 20.6 20.9 21.2 21.5 21.8 22.0 19.6 20.0 20.3 2AREA-WIDE SOURCES SOLVENT EVAPORATION CONSUMER PRODUCTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ARCHITECTURAL COATINGS AND RELATED PROCESS SOLVENTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PESTICIDES/FERTILIZERS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ASPHALT PAVING / ROOFING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-14 

SO2 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

* TOTAL SOLVENT EVAPORATION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MISCELLANEOUS PROCESSES RESIDENTIAL FUEL COMBUSTION 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.5 0.5 0.5 FARMING OPERATIONS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 CONSTRUCTION AND DEMOLITION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PAVED ROAD DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 UNPAVED ROAD DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FUGITIVE WINDBLOWN DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FIRES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MANAGED BURNING AND DISPOSAL 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.3 0.2 0.2 COOKING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (MISCELLANEOUS PROCESSES) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL MISCELLANEOUS PROCESSES 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 0.8 0.8 ** TOTAL AREA-WIDE SOURCES 0.9 0.9 0.9 0.9 0.9 1.1 0.9 0.8 0.8 0.8 MOBILE SOURCES ON-ROAD MOTOR VEHICLES LIGHT DUTY PASSENGER (LDA) 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 LIGHT DUTY TRUCKS - 1 (LDT1) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 LIGHT DUTY TRUCKS - 2 (LDT2) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MEDIUM DUTY TRUCKS (MDV)LIGHT HEAVY DUTY GAS TRUCKS - 1 (LHDV1) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 HEAVY HEAVY DUTY GAS TRUCKS (HHDV) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 LIGHT HEAVY DUTY GAS TRUCKS - 2(LHDV2) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MEDIUM HEAVY DUTY GAS TRUCKS (MHDV) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY HEAVY DUTY GAS TRUCKS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-15 

SO2 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

(HHDV) LIGHT HEAVY DUTY DIESEL TRUCKS- 1 (LHDV1) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 LIGHT HEAVY DUTY DIESEL TRUCKS- 2 (LHDV2) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MEDIUM HEAVY DUTY DIESEL TRUCKS (MHDV) 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.0 0.0 HEAVY HEAVY DUTY DIESEL TRUCKS (HHDV) 1.8 0.2 0.2 0.2 0.3 0.2 0.3 1.7 0.2 0.2 MOTORCYCLES (MCY) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY DUTY DIESEL URBAN BUSES (UB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY DUTY GAS URBAN BUSES (UB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SCHOOL BUSES (SB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER BUSES (OB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MOTOR HOMES (MH) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL ON-ROAD MOTOR VEHICLES 2.6 0.7 0.7 0.7 0.7 0.8 0.7 2.5 0.7 0.7 OTHER MOBILE SOURCES AIRCRAFT 0.44 0.47 0.48 0.49 0.50 0.51 0.51 0.4 0.5 0.5 TRAINS 0.71 0.07 0.07 0.02 0.02 0.02 0.02 0.7 0.1 0.1 SHIPS AND COMMERCIAL BOATS 0.31 0.13 0.08 0.08 0.09 0.09 0.10 0.3 0.1 0.1 RECREATIONAL BOATS 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.0 0.0 0.0 OFF-ROAD RECREATIONAL VEHICLES 0.06 0.07 0.07 0.07 0.08 0.08 0.08 0.0 0.1 0.1 OFF-ROAD EQUIPMENT 0.49 0.05 0.05 0.05 0.05 0.05 0.05 0.5 0.0 0.0 FARM EQUIPMENT 0.42 0.04 0.04 0.04 0.04 0.04 0.04 0.3 0.0 0.0 FUEL STORAGE AND HANDLING 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0 0.0 0.0 * TOTAL OTHER MOBILE SOURCES 2.42 0.83 0.79 0.76 0.78 0.79 0.81 2.3 0.8 0.8 ** TOTAL MOBILE SOURCES 5.0 1.5 1.5 1.5 1.5 1.6 1.5 4.9 1.5 1.5 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-16 

SO2 (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

GRAND TOTAL FOR SAN JOAQUIN VALLEY 26.4 23.0 23.3 23.6 23.8 24.2 24.5 25.2 22.3 22.6 2

Table B-4 Volatile Organic Compounds (VOC), Annual and Winter Daily Averag

(in tons per day) 

VOC (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

STATIONARY SOURCES FUEL COMBUSTION ELECTRIC UTILITIES 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.5 0.5 COGENERATION 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 OIL AND GAS PRODUCTION (COMBUSTION) 3.3 3.3 3.2 3.2 3.2 3.2 3.2 3.3 3.3 3.2 PETROLEUM REFINING (COMBUSTION) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MANUFACTURING AND INDUSTRIAL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 FOOD AND AGRICULTURAL PROCESSING 1.9 1.9 1.9 1.9 1.8 1.8 1.8 1.3 1.3 1.3 SERVICE AND COMMERCIAL 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 OTHER (FUEL COMBUSTION) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 * TOTAL FUEL COMBUSTION 6.7 6.7 6.7 6.7 6.7 6.6 6.6 6.1 6.1 6.1 WASTE DISPOSAL SEWAGE TREATMENT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-17 

VOC (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

LANDFILLS 1.6 1.7 1.7 1.8 1.8 1.8 1.9 1.6 1.7 1.7 INCINERATORS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SOIL REMEDIATION 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 OTHER (WASTE DISPOSAL) 45.4 46.0 46.5 47.1 47.5 49.8 52.1 27.5 27.8 28.2 2* TOTAL WASTE DISPOSAL 47.1 47.8 48.4 48.9 49.3 51.7 54.1 29.1 29.6 30.0 3CLEANING AND SURFACE COATINGS LAUNDERING 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 DEGREASING 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 COATINGS AND RELATED PROCESS SOLVENTS 7.6 7.5 7.7 7.9 8.1 8.3 8.6 7.6 7.5 7.7 PRINTING 1.7 1.8 1.8 1.8 1.9 1.9 2.0 1.6 1.8 1.8 ADHESIVES AND SEALANTS 3.2 3.4 3.5 3.5 3.6 3.7 3.7 3.2 3.4 3.5 OTHER (CLEANING AND SURFACE COATINGS) 3.4 3.9 4.0 4.1 4.2 4.3 4.4 3.4 3.9 4.0 * TOTAL CLEANING AND SURFACE COATINGS 17.4 18.1 18.5 18.9 19.4 19.8 20.3 17.3 18.0 18.5 1PETROLEUM PRODUCTION AND MARKETING OIL AND GAS PRODUCTION 27.9 27.2 26.8 26.5 26.2 25.8 25.5 27.9 27.2 26.8 2PETROLEUM REFINING 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 PETROLEUM MARKETING 6.8 7.1 7.2 7.3 7.4 7.5 7.6 6.7 7.0 7.2 OTHER (PETROLEUM PRODUCTION AND MARKETING) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL PETROLEUM PRODUCTION AND MARKETING 35.3 34.9 34.6 34.4 34.2 34.0 33.8 35.3 34.9 34.6 3INDUSTRIAL PROCESSES CHEMICAL 2.4 2.6 2.6 2.6 2.7 2.7 2.8 2.3 2.5 2.6 FOOD AND AGRICULTURE 11.4 10.9 11.0 11.1 11.2 11.3 11.4 10.0 10.0 10.1 1MINERAL PROCESSES 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.4 0.4 METAL PROCESSES 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-18 

VOC (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

WOOD AND PAPER 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 GLASS AND RELATED PRODUCTS 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 OTHER (INDUSTRIAL PROCESSES) 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 External Inventory Corrections (Rule 4401) 0.0 -0.4 -0.7 -1.1 -1.1 -1.1 -1.0 0.0 -0.4 -0.7 * TOTAL INDUSTRIAL PROCESSES 15.0 14.5 14.3 14.1 14.3 14.5 14.7 13.5 13.5 13.3 1** TOTAL STATIONARY SOURCES 121.5 121.9 122.5 123.1 123.9 126.6 129.5 101.4 102.0 102.4 10AREA-WIDE SOURCES SOLVENT EVAPORATION CONSUMER PRODUCTS 23.5 23.3 23.6 24.1 24.6 25.0 25.5 23.5 23.3 23.6 2ARCHITECTURAL COATINGS AND RELATED PROCESS SOLVENTS 9.4 9.7 9.8 9.9 10.0 10.1 10.2 7.7 8.0 8.1 PESTICIDES/FERTILIZERS 23.5 22.6 22.4 22.3 22.2 22.1 22.0 25.1 24.2 24.0 2ASPHALT PAVING / ROOFING 2.3 2.4 2.4 2.4 2.4 2.4 2.4 1.7 1.7 1.8 * TOTAL SOLVENT EVAPORATION 58.7 58.0 58.2 58.7 59.2 59.7 60.1 58.1 57.3 57.4 5MISCELLANEOUS PROCESSES RESIDENTIAL FUEL COMBUSTION 5.9 5.0 4.9 4.7 4.5 4.4 4.2 11.4 9.6 9.4 FARMING OPERATIONS 65.4 51.3 51.9 52.9 53.8 54.8 55.7 65.4 51.3 51.9 5CONSTRUCTION AND DEMOLITION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PAVED ROAD DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 UNPAVED ROAD DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FUGITIVE WINDBLOWN DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FIRES 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MANAGED BURNING AND DISPOSAL 10.1 7.6 7.5 7.5 7.5 7.5 7.4 10.0 8.5 8.4 COOKING 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 OTHER (MISCELLANEOUS PROCESSES) 0.0 0.0 0.0 -1.1 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL MISCELLANEOUS PROCESSES 82.0 64.4 64.9 64.5 66.4 67.1 67.9 87.3 69.9 70.2 6** TOTAL AREA-WIDE SOURCES 140.7 122.4 123.1 123.2 125.5 126.8 128.0 145.4 127.1 127.6 12
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-19 

VOC (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

MOBILE SOURCES ON-ROAD MOTOR VEHICLES LIGHT DUTY PASSENGER (LDA) 27.2 19.0 17.7 16.1 14.6 13.3 12.1 28.6 20.5 18.4 1LIGHT DUTY TRUCKS - 1 (LDT1) 10.5 7.7 7.0 6.5 6.2 5.6 5.3 11.2 8.2 7.5 LIGHT DUTY TRUCKS - 2 (LDT2) 14.0 11.6 11.1 10.6 10.3 9.5 9.3 14.9 12.5 11.9 1MEDIUM DUTY TRUCKS (MDV)LIGHT HEAVY DUTY GAS TRUCKS - 1 (LHDV1) 7.9 6.6 6.3 6.1 6.0 5.7 5.6 8.4 7.0 6.7 HEAVY HEAVY DUTY GAS TRUCKS (HHDV) 5.4 3.4 3.2 3.0 2.9 2.7 2.7 5.8 3.7 3.4 LIGHT HEAVY DUTY GAS TRUCKS - 2(LHDV2) 1.3 1.0 0.9 0.8 0.8 0.7 0.7 1.4 1.0 1.0 MEDIUM HEAVY DUTY GAS TRUCKS (MHDV) 3.3 2.4 2.2 1.9 1.8 1.5 1.4 3.7 2.7 2.4 HEAVY HEAVY DUTY GAS TRUCKS (HHDV) 1.4 0.9 0.9 0.8 0.8 0.7 0.6 1.5 1.0 0.9 LIGHT HEAVY DUTY DIESEL TRUCKS- 1 (LHDV1) 0.2 0.2 0.2 0.2 0.2 0.1 0.2 0.2 0.2 0.2 LIGHT HEAVY DUTY DIESEL TRUCKS- 2 (LHDV2) 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 MEDIUM HEAVY DUTY DIESEL TRUCKS (MHDV) 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.5 0.5 0.5 HEAVY HEAVY DUTY DIESEL TRUCKS (HHDV) 16.1 16.8 15.7 14.9 14.5 13.2 12.7 16.2 17.0 15.8 1MOTORCYCLES (MCY) 5.8 5.4 5.1 4.9 5.2 4.8 5.1 6.0 5.6 5.2 HEAVY DUTY DIESEL URBAN BUSES (UB) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 HEAVY DUTY GAS URBAN BUSES (UB) 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 SCHOOL BUSES (SB) 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 OTHER BUSES (OB) 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.2 MOTOR HOMES (MH) 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.2 0.2 * TOTAL ON-ROAD MOTOR 94.8 76.5 71.5 67.3 64.8 59.4 57.2 99.7 80.9 74.8 7
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-20 

VOC (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

VEHICLES OTHER MOBILE SOURCES AIRCRAFT 6.7 5.8 6.5 6.5 6.6 6.7 6.8 6.7 5.8 6.5 TRAINS 1.6 1.6 1.5 1.6 1.6 1.6 1.6 1.6 1.6 1.5 SHIPS AND COMMERCIAL BOATS 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 RECREATIONAL BOATS 13.2 12.1 11.9 11.6 11.5 11.4 11.3 7.7 7.5 7.4 OFF-ROAD RECREATIONAL VEHICLES 6.9 7.7 7.9 8.1 8.3 8.5 8.7 7.4 8.2 8.4 OFF-ROAD EQUIPMENT 19.8 16.1 15.3 14.6 13.9 13.2 12.6 19.8 16.2 15.4 1FARM EQUIPMENT 10.8 8.7 8.3 7.8 7.1 6.4 5.9 9.0 7.2 6.9 FUEL STORAGE AND HANDLING 3.5 2.2 2.1 2.0 1.8 1.7 1.7 3.4 2.1 1.9 * TOTAL OTHER MOBILE SOURCES 62.7 54.3 53.5 52.2 50.8 49.6 48.5 55.7 48.6 48.1 4** TOTAL MOBILE SOURCES 157.5 130.8 125.0 119.5 115.6 109.0 105.7 155.4 129.5 122.9 11GRAND TOTAL FOR SAN JOAQUIN VALLEY 419.8 375.2 370.6 365.8 365.0 362.3 363.2 402.2 358.6 352.8 34
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-21 

Table B-5 Ammonia, Annual and Winter Daily Averages 

(in tons per day) 

Ammonia (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

STATIONARY SOURCES FUEL COMBUSTION ELECTRIC UTILITIES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 COGENERATION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OIL AND GAS PRODUCTION (COMBUSTION) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PETROLEUM REFINING (COMBUSTION) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MANUFACTURING AND INDUSTRIAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FOOD AND AGRICULTURAL PROCESSING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SERVICE AND COMMERCIAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (FUEL COMBUSTION) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL FUEL COMBUSTION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 WASTE DISPOSAL SEWAGE TREATMENT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 LANDFILLS 2.8 3.0 3.0 3.1 3.1 3.2 3.2 2.8 3.0 3.0 INCINERATORS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SOIL REMEDIATION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (WASTE DISPOSAL) 17.0 18.0 18.3 18.6 19.0 19.4 19.8 17.0 18.0 18.3 1* TOTAL WASTE DISPOSAL 19.8 21.0 21.3 21.7 22.2 22.6 23.0 19.8 21.0 21.3 2CLEANING AND SURFACE COATINGS LAUNDERING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 DEGREASING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 COATINGS AND RELATED PROCESS SOLVENTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PRINTING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-22 

Ammonia (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

ADHESIVES AND SEALANTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (CLEANING AND SURFACE COATINGS) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL CLEANING AND SURFACE COATINGS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PETROLEUM PRODUCTION AND MARKETING OIL AND GAS PRODUCTION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PETROLEUM REFINING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PETROLEUM MARKETING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (PETROLEUM PRODUCTION AND MARKETING) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL PETROLEUM PRODUCTION AND MARKETING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 INDUSTRIAL PROCESSES CHEMICAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FOOD AND AGRICULTURE 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MINERAL PROCESSES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 METAL PROCESSES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 WOOD AND PAPER 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 GLASS AND RELATED PRODUCTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (INDUSTRIAL PROCESSES) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL INDUSTRIAL PROCESSES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ** TOTAL STATIONARY SOURCES 19.8 21.0 21.3 21.7 22.2 22.6 23.0 19.8 21.0 21.3 2AREA-WIDE SOURCES SOLVENT EVAPORATION CONSUMER PRODUCTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ARCHITECTURAL COATINGS AND RELATED PROCESS SOLVENTS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PESTICIDES/FERTILIZERS 15.0 14.8 14.7 14.7 14.6 14.5 14.5 15.0 14.8 14.7 1ASPHALT PAVING / ROOFING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-23 

Ammonia (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

* TOTAL SOLVENT EVAPORATION 15.0 14.8 14.7 14.7 14.6 14.5 14.5 15.0 14.8 14.7 1MISCELLANEOUS PROCESSES RESIDENTIAL FUEL COMBUSTION 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1.1 1.2 1.2 FARMING OPERATIONS 332.1 358.0 364.5 373.1 381.7 390.3 398.9 332.0 357.9 364.3 37CONSTRUCTION AND DEMOLITION 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PAVED ROAD DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 UNPAVED ROAD DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FUGITIVE WINDBLOWN DUST 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FIRES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MANAGED BURNING AND DISPOSAL 2.6 2.6 2.6 2.6 2.6 2.6 2.5 3.2 3.1 3.1 COOKING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER (MISCELLANEOUS PROCESSES) 5.6 6.0 6.1 6.2 6.3 6.5 6.6 5.6 6.0 6.1 * TOTAL MISCELLANEOUS PROCESSES 340.9 367.2 373.7 382.4 391.2 399.9 408.7 341.9 368.1 374.6 38** TOTAL AREA-WIDE SOURCES 355.9 381.9 388.4 397.1 405.8 414.5 423.1 356.9 382.9 389.3 39MOBILE SOURCES ON-ROAD MOTOR VEHICLES LIGHT DUTY PASSENGER (LDA) 2.6 2.1 2.0 1.9 1.8 1.8 1.7 2.6 2.1 2.0 LIGHT DUTY TRUCKS - 1 (LDT1) 0.7 0.6 0.5 0.5 0.5 0.5 0.5 0.7 0.6 0.5 LIGHT DUTY TRUCKS - 2 (LDT2) 1.3 1.0 1.0 0.9 0.9 0.8 0.8 1.3 1.0 1.0 MEDIUM DUTY TRUCKS (MDV) LIGHTHEAVY DUTY GAS TRUCKS - 1 (LHDV1) 1.3 1.2 1.3 1.3 1.3 1.3 1.3 1.3 1.2 1.3 HEAVY HEAVY DUTY GAS TRUCKS (HHDV) 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 LIGHT HEAVY DUTY GAS TRUCKS - 2(LHDV2) 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0 0.0 MEDIUM HEAVY DUTY GAS TRUCKS (MHDV) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY HEAVY DUTY GAS TRUCKS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-24 

Ammonia (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

(HHDV) LIGHT HEAVY DUTY DIESEL TRUCKS- 1 (LHDV1) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 LIGHT HEAVY DUTY DIESEL TRUCKS- 2 (LHDV2) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MEDIUM HEAVY DUTY DIESEL TRUCKS (MHDV) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY HEAVY DUTY DIESEL TRUCKS (HHDV) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MOTORCYCLES (MCY) 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.0 0.0 0.0 HEAVY DUTY DIESEL URBAN BUSES (UB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 HEAVY DUTY GAS URBAN BUSES (UB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SCHOOL BUSES (SB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OTHER BUSES (OB) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MOTOR HOMES (MH) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL ON-ROAD MOTOR VEHICLES 6.2 5.3 5.2 5.1 5.0 4.9 4.8 6.2 5.3 5.2 OTHER MOBILE SOURCES AIRCRAFT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TRAINS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SHIPS AND COMMERCIAL BOATS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 RECREATIONAL BOATS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OFF-ROAD RECREATIONAL VEHICLES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OFF-ROAD EQUIPMENT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FARM EQUIPMENT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 FUEL STORAGE AND HANDLING 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * TOTAL OTHER MOBILE SOURCES 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ** TOTAL MOBILE SOURCES 6.2 5.3 5.2 5.1 5.0 4.9 4.8 6.2 5.3 5.2 
San Joaquin Valley Unified Air Pollution Control District 

Appendix B

Appendix B-25 

Ammonia (tpd) 

ANNUAL WIN

SUMMARY CATEGORY NAME

2005 2009 2010 2011 2012 2013 2014 2005 2009 2010 20

GRAND TOTAL FOR SAN JOAQUIN VALLEY 382.0 408.3 414.9 423.9 433.0 442.0 451.0 382.9 409.2 415.8 42

San Joaquin Valley Unified Air Pollution Control District April 30, 2008

Appendix B: Emissions Inventory 

2008 PM2.5 Plan 

Appendix B-27 

B.3 EMISSIONS INVENTORY CALCULATIONS AND REVISIONS 

Emissions are estimated in a variety of ways. Some point and mobile sources may 

have emissions source tests or continuous emissions monitoring, which can provide 

direct tabulation of emission rates. Data from source-specific emission tests or 

continuous emission monitors are usually preferred for estimating a source's emissions 

because those data provide the best representation of the source's emissions. 

Typically, the mobile source inventory is based on population, activity rates, fuel 

specifications, and emissions of typical vehicles. For area sources, estimates are made 

based on 'surrogate' data that is assumed to be proportional to emissions, such as 

population, employment, economic data or some type of human activity. If no 

emissions data are available for a particular source, the District may send a survey to 

businesses that are identified as producing emissions form that source. The survey 

typically requests data that are used to estimate emissions. Each of the local air 

districts estimates the emissions for the stationary sources within its jurisdiction. 

Emissions from natural sources are typically estimated by conducting a scientific study. 

ARB estimates emissions of biogenic volatile organic compounds (BVOCs) from 

vegetation for natural areas, crops, and urban vegetation. BVOC emissions are 

functions of the species leaf mass, emission factors, temperature, and light conditions. 

Other pollutants (e.g. NOx) also have biogenic sources. 

B.3.1 Emission Factors and Emission Equations 

The general equation for emission estimation is: 

E = A x EF x (1-ER/100) 

where: 

E = emissions 

A = activity rate 

EF = emission factor 

ER = overall emission reduction efficiency, percent 

An emission factor relates the quantity of a pollutant emitted into the atmosphere 

to an activity associated with the pollutant’s release. Such factors may be used in 

equations to estimate emissions from a process where source specific data is not 

available. Emission factors are typically expressed as the weight of pollutant 

divided by a unit weight, area, volume, distance, or duration of the activity 

emitting the pollutant. In most cases, these factors are simply averages of all 

available data of acceptable quality, and are generally assumed to be 

representative of long-term averages for all facilities in the source category. EPA 

publishes emission factors for many emissions categories in the document 

entitled AP-42. 
San Joaquin Valley Unified Air Pollution Control District April 30, 2008

Appendix B: Emissions Inventory 

2008 PM2.5 Plan 

Appendix B-28 

Once an emission factor is determined, the next step is to determine the population 

(number of sources) and extent of each source. Population data is collected directly 

and indirectly. For example, vehicle registration data are gathered by the state. 

Stationary sources must obtain a permit from the District; therefore, populations of 

permitted equipment are directly obtained and are reasonably accurate. The number of 

fireplaces is not reported and must be estimated indirectly using housing statistics and 

surveys. Each source category has its own methodology. 

The next step is to determine an activity rate. Activity data is reported in hours of 

operation, gallons of fuel used, miles traveled, and other units. Stationary sources of 

emissions permitted by the District are required to report actual emissions to ensure that 

they remain below their emission limits. This provides detailed activity data that is used 

in the emissions inventory. In other cases, facility operators can inform the District of 

their actual production figures or fuel burned. A survey is often carried out to determine 

usage rates. 

B.3.2 Emissions Inventory Updates 

The District, in cooperation with the ARB, is committed to continually updating the 

emissions inventory as research, emission factor updates, and other information 

become available. When emissions data change dramatically, the District is committed 

to revising the inventory and ensuring that any impact is reflected in the control strategy 

and the attainment demonstration. 

The District re-evaluates the emissions inventory on a regular basis to ensure that the 

inventory is accurate and current. Major point sources are typically re-evaluated every 

year. Area sources are scheduled to be re-evaluated every one to five years. Seventyfive area source categories were updated during the period from 2003 to 2006. 

The District updates emissions growth estimates on a periodic basis. Ten source 

categories are being examined in 2006 to reevaluate growth trends. The District also 

revises emissions estimates based on the effects of District prohibitory rules on an 

emissions source category. Approximately sixty-eight District prohibitory rules will be 

examined in 2006 to evaluate emissions controls and the effect of the rule requirements 

on the emissions inventory.