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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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