Contact EPA Pacific Southwest Air Program
Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Air Quality Analysis
Air Quality Trends
24-Hour Fine Particulate Matter (PM2.5)
Annual Fine Particulate Matter (PM2.5)
Particulate Matter (PM10)
Air Quality Trends (1985-2011)
Particulate Matter (PM10) Estimated Exceedance days
Three-year average of the number of estimated exceedance days per year
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- View a high resolution PDF version of this map (PDF) (1 pg, 490K, About PDF)
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