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Contact Region 9

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Air Quality Analysis

Air Quality Trends (1985-2018)

Particulate Matter (PM10) Estimated Exceedance Days

Three-year Average of Number of Estimated Exceedance Eays Per Year

(Click Graph to Enlarge)
Graph showing air pollution concentrations for particulate matter (PM 1.0) - Click to Enlarge

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