Air Quality

Since the population and most pollution sources are concentrated in the western portion of San Diego County, the District conducts most of its air sampling at monitoring sites in the western region. Data collected from the monitoring stations is used to assess the County's air quality attainment status and to forecast air pollution levels.


Wildfire Information

Pollution Maps

Pollution Data

One Hour Pollution Data

Tijuana PM2.5 Data - AirNow (The SDCAPCD neither collects nor verifies this data)

Eight Hour Ozone Data

Pollution Data Archive