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Air Quality Web Sites and Data
Air Quality - AIRNow
Site offers daily AQI forecasts as well as real-time AQI conditions for over 300 cities across the U.S. and provides links to more detailed State and local air quality Web sites. Data provided by multiple government agencies.
Indoor Air Quality (EPA)
Provides information about indoor air pollutants including radon and mold and information about common health effects. From the Environmental Protection Agency.
TOXMAP: Environmental Health e-Maps
Look up releases of chemicals to the air and water by geographic region. This database is complex, so ask a librarian if you need help finding the data you need.