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EPA-Expo-Box (A Toolbox for Exposure Assessors)

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Air

Overview

Air

Contaminated media to which people might be exposed include air, water and sediment, soil and dust, food, aquatic biota, and consumer products. Ambient air can become contaminated as a result of stationary (point) sources (e.g., power plants, industrial facilities); natural sources (e.g., forest fires, volcanoes, wind storms that generate dust); area sources (e.g., community of homes using woodstoves for heat); and mobile sources (e.g., automobiles, trucks, airplanes). Sources of indoor air pollution include combustion sources (e.g., oil, gas, wood, tobacco products), building materials, and consumer products.

Exposure to contaminants in air can occur from direct contact (e.g., inhalation) or indirect contact from transfer and subsequent contact with other media (e.g., deposition of atmospheric contaminants onto soil or water and subsequent uptake into terrestrial foods or aquatic biota). The concentrations of contaminants in air at the point of exposure may differ from the concentrations at the source as a result of fate and transport processes (e.g., dispersion or deposition). Various tools are available for evaluating sources and releases of contaminants to air, fate and transport processes, and potential exposure concentrations. Exposure factors, calculation tools, and guidance for assessing exposure to contaminants in air are also discussed in this module.

Information about EPA’s Air and Radiation Program can be found at:
http://www.epa.gov/air/index.html

EPA’s Technology Transfer Network (TTN) provides a comprehensive listing of air resources at:
http://www.epa.gov/ttn/

The Consumer Product Safety Commission (CPSC) and the Occupational Safety and Health Administration (OSHA) provide information and resources related to indoor air quality:
http://www.cpsc.gov/cpscpub/pubs/450.html
http://www.osha.gov/SLTC/indoorairquality/

State and EPA Regional air websites are provided in the following tables.

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U.S. State Air Websites
State Web Link(s)
Alabama http://adem.alabama.gov/programs/air/default.cnt
Alaska http://dec.alaska.gov/air/
Arizona http://www.azdeq.gov/environ/air/index.html
Arkansas http://www.adeq.state.ar.us/air/
California http://www.arb.ca.gov/html/ds.htm
Colorado http://www.cdphe.state.co.us/ap/index.html
Connecticut http://www.ct.gov/dep/cwp/view.asp?a=2684&q=321758&depNav_GID=1619
Delaware http://www.dnrec.delaware.gov/whs/awm/AQM/Pages/Default.aspx
Florida http://www.dep.state.fl.us/air/
Georgia http://georgiaair.org/ Exit EPA Disclaimer
Hawaii http://hawaii.gov/health/environmental/air/cab/index.html
Idaho http://www.deq.idaho.gov/air-quality.aspx
http://www.itd.idaho.gov/enviro/air/air.htm
Illinois http://www.epa.state.il.us/air/
http://www.dot.il.gov/airquality.html
Indiana http://www.in.gov/idem/4652.htm
Iowa http://www.iowadnr.gov/InsideDNR/RegulatoryAir.aspx
Kansas http://www.kdheks.gov/bar/
Kentucky http://air.ky.gov/Pages/default.aspx
Louisiana http://www.deq.louisiana.gov/portal/PROGRAMS/Air.aspx
Maine http://www.maine.gov/dep/air/
Maryland http://www.mde.state.md.us/programs/air/Pages/index.aspx
Massachusetts http://www.mass.gov/dep/air/
Michigan http://www.michigan.gov/deq/0,1607,7-135-3306_28605---,00.html
Minnesota http://www.health.state.mn.us/divs/eh/air/index.htm
http://www.pca.state.mn.us/index.php/air/index.html
Mississippi http://www.deq.state.ms.us/MDEQ.nsf/page/Main_programs?OpenDocument
Missouri http://www.dnr.mo.gov/env/apcp/index.html
Montana http://www.deq.mt.gov/AirQuality/AQinfo.mcpx
Nebraska http://deq.ne.gov/
Nevada http://ndep.nv.gov/bapc/index.htm
http://ndep.nv.gov/baqp/index.htm
New Hampshire http://des.nh.gov/organization/divisions/air/index.htm
New Jersey http://www.nj.gov/dep/baqp/
http://www.nj.gov/dep/daq/
New Mexico http://www.nmenv.state.nm.us/aqb/
New York http://www.dec.ny.gov/chemical/281.html
North Carolina http://daq.state.nc.us/
North Dakota http://www.ndhealth.gov/AQ/Airhomepage.htm
Ohio http://www.epa.ohio.gov/dapc/airohio/index.aspx
http://www.epa.ohio.gov/dapc/aqmp/eiu/eis.aspx
Oklahoma http://www.deq.state.ok.us/AQDnew/index.htm
Oregon http://www.oregon.gov/DEQ/AQ/
Pennsylvania http://www.dep.state.pa.us/dep/deputate/airwaste/aq/default.htm
Rhode Island http://www.dem.ri.gov/programs/benviron/air/index.htm
South Carolina http://www.scdhec.gov/environment/baq/
South Dakota http://denr.sd.gov/des/aq/airprogr.aspx
Tennessee http://www.tn.gov/environment/air/
Texas http://www.tceq.texas.gov/agency/air_main.html
Utah http://www.airquality.utah.gov/
Vermont http://healthvermont.gov/enviro/indoor_air/indoor_guide.aspx
http://www.anr.state.vt.us/air/index.htm
Virginia http://www.deq.state.va.us/Programs/Air.aspx
Washington http://www.ecy.wa.gov/programs/air/airhome.html
West Virginia http://www.dep.wv.gov/daq/Pages/default.aspx
Wisconsin http://dnr.wi.gov/topic/AirQuality/
Wyoming http://deq.state.wy.us/aqd/

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U.S. EPA Regional Air Websites
EPA Region Website(s)
1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont http://www.epa.gov/region1/topics/pollutants/airtox.html
http://www.epa.gov/region1/topics/air/indoorair.html
2: New Jersey, New York, Puerto Rico , U.S. Virgin Islands http://www.epa.gov/region02/air/
3: Delaware, Maryland, Pennsylvania, Virginia, West Virginia, District of Columbia http://www.epa.gov/reg3artd/
4: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee http://www.epa.gov/region4/air/airtoxic/
5: Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin http://www.epa.gov/region5/air/
6: Arkansas, Louisiana, New Mexico, Oklahoma, Texas http://www.epa.gov/region6/air/
7: Iowa, Kansas, Missouri, Nebraska http://www.epa.gov/region7/air/
8: Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming http://www2.epa.gov/region8/air-program
9: Arizona, California, Hawaii, Nevada, territories of Guam and American Samoa http://www.epa.gov/region9/air/
10: Alaska, Idaho, Oregon, Washington http://yosemite.epa.gov/R10/AIRPAGE.NSF/webpage/Air+Quality

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