Other
Environmental Defense/air Scorecard
Locate maps and data for air pollutants. Just enter your zip code to find out what air pollutants are released near you.
US Environmental Protection Agency
Epa: Air Data
Huge database for air quality data. You specify the information you need and AIRS will supply it. Pollution sources, maps, monitoring sites.
Curated OER
National Park Service: Web Cameras
Use national park webcams to determine how regional haze forms and reduces visibility. You can also explore the differences between smog and haze to determine some of the negative economic impacts regional haze can create.
Other
Camnet: Real Time Air Pollution
Live pictures from northeastern U.S. Air quality data and visibility. Real-Time pollution maps. Links to more data sites.