PM-10 EMISSION INVENTORYPM-10 EMISSION INVENTORYAverage of Peak PM10 Monthly Concentrations, 1998-2001

Average of 1998 to 2001 peak readings from the highest site for each month.

Particulate Matter is ComplexParticulate Matter is Complex In the In the summer and fallsummer and fall, about 80% of the PM , about 80% of the PM

problem is due to directly emitted particulates problem is due to directly emitted particulates (the remainder is mostly nitrates formed in the (the remainder is mostly nitrates formed in the atmosphere). Of the directly emitted atmosphere). Of the directly emitted particulates, about 70% is fugitive dust. The particulates, about 70% is fugitive dust. The remainder of the direct particulates are smoke remainder of the direct particulates are smoke and internal combustion engine exhaust.and internal combustion engine exhaust.

In the In the winterwinter, about 50% of the PM problem is , about 50% of the PM problem is due to directly emitted particulates (again, the due to directly emitted particulates (again, the remainder is mostly nitrates). Of the directly remainder is mostly nitrates). Of the directly emitted particulates, about 60% is fugitive dust.emitted particulates, about 60% is fugitive dust.

SJV Air Quality Monitoring SitesSJV Air Quality Monitoring Sites

Agricultural Production in Agricultural Production in the the

San Joaquin ValleySan Joaquin Valley

Irrigated Acres:Irrigated Acres: 6.4+ million 6.4+ million Value of Crops:Value of Crops: $15+ billion $15+ billion Number of Farms: Number of Farms: 27,000+27,000+

Ag Contribution to PM-10 Emission Ag Contribution to PM-10 Emission Inventory (2002)Inventory (2002)

Total Annual PM-10 Emissions: Total Annual PM-10 Emissions: 329.5 329.5 t/dt/d

Ag Contribution (24.2%): Ag Contribution (24.2%): 83.5 83.5 t/dt/d

Total Mobile Sources (4.4%): 14.6 t/dTotal Mobile Sources (4.4%): 14.6 t/d Total Mobile Sources (NOx):Total Mobile Sources (NOx): 237.0 237.0

t/d t/d

San Joaquin Valley Air District San Joaquin Valley Air District PM-10 PlanPM-10 Plan

Website for the San Joaquin ValleyWebsite for the San Joaquin Valley

Unified Air Pollution Control District:Unified Air Pollution Control District:

www.valleyair.orgwww.valleyair.org

San Joaquin Valley Air District San Joaquin Valley Air District PM-10 PlanPM-10 Plan

The SJV is in Extreme non-attainment for The SJV is in Extreme non-attainment for PMPM1010 because the Valley couldn’t meet its because the Valley couldn’t meet its

pollution reduction deadlines.pollution reduction deadlines. State Implementation Plan has been written State Implementation Plan has been written

and includes new PMand includes new PM1010 planning planning

requirements for agriculture to reduce dust requirements for agriculture to reduce dust from all sources on farms.from all sources on farms.

San Joaquin Valley Air District San Joaquin Valley Air District PM-10 PlanPM-10 Plan

Changes that affect agriculture:Changes that affect agriculture:

1.1. Senate Bill 700 removes the Ag exemption for Senate Bill 700 removes the Ag exemption for air quality.air quality.

2.2. A Conservation Management Practice (CMP) A Conservation Management Practice (CMP) Plan program has been developed and a CMP Plan program has been developed and a CMP plan is required of every land owner with 100 plan is required of every land owner with 100 acres or more; 6400+ farms.acres or more; 6400+ farms.

3.3. Senate Bill 705 prohibits ag burning in 2005.Senate Bill 705 prohibits ag burning in 2005.

Conservation Management Conservation Management Practice (CMP) Plan ProgramPractice (CMP) Plan Program

Requires growers to write and adhere to an annual Requires growers to write and adhere to an annual plan that reduces emissions from five categories of plan that reduces emissions from five categories of sources of dust on a farm: sources of dust on a farm:

*unpaved roads and equipment storage and*unpaved roads and equipment storage and traffic areas, traffic areas, *land preparation, *land preparation, *harvest, *harvest, *windblown dust, and *windblown dust, and *burning.*burning.

Conservation Management Practice Conservation Management Practice (CMP) Program(CMP) Program

1.1. Is mandatory for all farms over 100 acres.Is mandatory for all farms over 100 acres.2.2. Growers will have to write a bi-annually certified Growers will have to write a bi-annually certified

plan that shows how they are reducing on-field plan that shows how they are reducing on-field PM-10 emissions.PM-10 emissions.

3.3. Growers have to apply at least one CMP in five Growers have to apply at least one CMP in five categories: unpaved roads and equipment and categories: unpaved roads and equipment and storage areas, cultural operations, harvest storage areas, cultural operations, harvest operations, windblown dust, burning.operations, windblown dust, burning.

4.4. Concentrated Animal Feeding Operators Concentrated Animal Feeding Operators (CAFOs) will have to include dust reduction from (CAFOs) will have to include dust reduction from animal movement and manure management as animal movement and manure management as well as any farming operations.well as any farming operations.

Conservation Management PracticesConservation Management Practices

RCDs

NRCS

Commodity Groups

Air District

EPA

Farm Bureaus

Growers

CMPs

Conservation Management PracticesConservation Management Practices

CMPs for reducing emissions fall into several broad CMPs for reducing emissions fall into several broad

categories:categories:

a. Practices that reduce or eliminate the need toa. Practices that reduce or eliminate the need to

disturb the soil;disturb the soil;

b. Practices that protect the soil from wind;b. Practices that protect the soil from wind;

c. Equipment modifications that physicallyc. Equipment modifications that physically

produce less dust;produce less dust;

d. Applying dust suppressants;d. Applying dust suppressants;

e. Reducing speed on unpaved roads;e. Reducing speed on unpaved roads;

f. Alternative practices to waste burning; andf. Alternative practices to waste burning; and

g. Actions that reduce pesticide application.g. Actions that reduce pesticide application.

Environmental Quality Environmental Quality Incentives Program Incentives Program

(EQIP)(EQIP)