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Area Designations for 1997 Fine Particle (PM2.5) Standards

Where You Live

The links on this page will direct you to information about designations recommendations for the fine particle standards for where you live, and will provide information about air quality conditions in your area.

State Designations: EPA issued official designations for the PM2.5 standard on December 17, 2004 and made modifications in April 2005. They are summarized here.

Tribal Designations: EPA issued official designations for the PM2.5 standard on December 17, 2004. The designations impacting federally-recognized tribal lands are summarized here.

PM2.5 Conditions
Link to the AIRNow Web site for real-time displays of current ozone and particle pollution.

Webcams - The Effect of Fine Particle Pollution on Visibility Conditions
Link to a number of webcams in urban areas, national parks, and other scenic areas around the country.  Fine particles scatter light and are a principle cause of poor visibility conditions.

Air Quality Forecast
Link to the AIRNow Web site for next-day air quality forecasts for hundreds of American cities.

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