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AGRICULTURE’S EFFECTS ON AIR QUALITY

AGRICULTURE’S EFFECTS ON AIR QUALITY. AGRICULTURE, SOCIETY, AND THE NATURAL WORLD AGST 3000 December 6, 2005 Ron Harben, Air Quality Specialist California Association of Resource Conservation Districts. AGENDA. Introduction Air Quality Parameters PM-10 Ozone Conclusions. AGENDA.

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AGRICULTURE’S EFFECTS ON AIR QUALITY

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  1. AGRICULTURE’S EFFECTS ON AIR QUALITY AGRICULTURE, SOCIETY, AND THE NATURAL WORLD AGST 3000 December 6, 2005 Ron Harben, Air Quality Specialist California Association of Resource Conservation Districts

  2. AGENDA • Introduction • Air Quality Parameters • PM-10 • Ozone • Conclusions

  3. AGENDA • Introduction • Air Quality Parameters • PM-10 • Ozone • Conclusions

  4. Introduction:RON HARBEN Present Position: Air Quality Planner and Coordinator, CARCD, since 09/02 Last Position: Executive Officer of the Alameda County RCD (2 ½ yrs) Previous Positions with the USDA - Natural Resources Conservation Service: 1. State Grazing Lands Specialist, Hawaii (4 years) 2. District Conservationist – 11 years 3. Range Conservationist – 6 ½ years 4. Soil Conservationist - 2 ½ years 5. Area Resource Conservationist – 2 years BS in Rangeland Management from Humboldt State University US Navy Veteran (1963 – 67) Major Duties: 1. AQ planning help to growers 2. Develop data base to track emission reductions 3. Implement information and education program 4. Keep up to date on AQ laws and regulations

  5. Soil Conservationist Range Mgt Specialist Biologist Soil Con Technician Soil Scientist Engineer Engineering Technician Agronomist Forester Hydrologist Watershed Management Rural Sociologist Wetland Biologist Accounting Ag Economics Aquatic Biology Business Admin. Cartography Communications Computer Technology Geology Landscape Architect Plant Sciences Recreation Wildlife Biologist Air Quality Specialist Careers in NRCS http://www.nrcs.usda.gov/intranet/hispanic/careers.html

  6. AGENDA • Introduction • Air Quality Parameters • PM-10 • Ozone • Conclusions

  7. AIR QUALITY PARAMETERS PM10 PM2.5 OZONE Volatile Organic Compounds Mercury (Hg) NOx Carbon Monoxide SOx Carbon Dioxide* Lead (Pb)

  8. Ambient Air Quality Standards & Valley Attainment Status PollutantDesignation/Classification Federal StandardsState Standards Ozone - One hour No Federal Standard Nonattainment/Severe (See note below) Ozone - Eight hour Nonattainment/Serious* No State Standard PM-10 Nonattainment/Serious Nonattainment PM-2.5 Nonattainment No State Standard CO - Fresno Urbanized Area Attainment1 Nonattainment/Moderate CO - Remainder of Fresno County Unclassified/Attainment Attainment CO - Merced, Madera and Kings Counties Unclassified/Attainment1 Unclassified CO - Kern (SJVAB portion), Tulare, Stanislaus, San Joaquin Unclassified/Attainment1 Attainment Nitrogen Dioxide Unclassified/Attainment Attainment Sulfur Dioxide - Kern County (SJVAB portion) Attainment Attainment Sulfur Dioxide - All Other Counties Unclassified Attainment Lead (Particulate)* No Designation* Attainment Hydrogen Sulfide* No Federal Standard* Unclassified Sulfates* No Federal Standard* Attainment Visibility Reducing Particles* No Federal Standard* Unclassified

  9. San Joaquin Valley Air Basin Boundaries

  10. Continuous intermountain valley (250 mi. x 80 mi.) Coast Range (5,000’+) Sierra Nevada Range (14,000’+) Tehachapi Mountains (6,000’+) Open to the north into Sacramento Valley and San Francisco Bay Hot, dry summers and cool, rainy winters Weather controlled by “Pacific High” off the West Coast of the US Precipitation: 4 – 11 in./yr. Inversion layer occurs when air increases in temperature with altitude Light and variable winds San Joaquin Valley AirshedTopographyMeteorology

  11. San Joaquin Valley AirshedSummerWinter

  12. AGENDA • Introduction • Air Quality Parameters • PM-10 • Ozone • Conclusions

  13. PM2.5 (2.5 µm) PM10 (10µm) Particulate Matter: What is It? A complex mixture of extremely small particles and liquid droplets Hair cross section (70 mm) Human Hair (70 µm diameter) M. Lipsett, California Office of Environmental Health Hazard Assessment

  14. PM-10 BACKGROUND INFO • Particulate matter consists very small (10 microns or less) solid or liquid particles of soot, dust, smoke, salt, acids, metals, and mists. Sources of PM10 include: 1. Oxides of nitrogen from motor vehicles, 2. Smoke from wood burning stoves and fireplaces, wildfires; burning brush, orchard and vineyard prunings; and waste burning; 3. Dust from construction, demolition, landfills, and agriculture, 4. Industrial sources; e.g., oil and gas production, metal coatings, glass manufacturing, and 5. Windblown dust from open fields.

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