Air Quality Trends

Air Quality monitoring has been conducted in San Luis Obispo since 1970. Comparison of our monitoring data against the California state standards for multiple year periods provides us with a good indicator of how our air quality is improving.

Pollutant Trend Graphs

Station	Pollutant
Atascadero	Ozone	PM10
Grover Beach	Ozone
Morro Bay	Ozone	PM10
Nipomo	Ozone	PM10
Paso Robles	Ozone	PM10
San Luis Obispo	Ozone	PM10

All pollutant trend graphs are saved in PDF format.

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