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California Environmental Health Tracking Program

850 Marina Bay Pkwy, P-3
Richmond, CA 94804

(510) 620-3038
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Last Edited: 1/15/2015

Air Quality Metadata

Choose one of the air quality indicator areas to view their metadata

  • Air Quality Measures: This indicator area relates to short-term exposures of PM10, PM2.5, and ozone and includes yearly summaries of PM2.5 by county and PM10   by air basin.
  • Traffic Measure: This indicator is an annual measure of traffic-related pollutants as computed by the California Environmental Health Tracking Program.