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Air quality in San Mateo, CA

Live air quality report and air quality forecast in San Mateo

live
10 °C Fill 2Created with Sketch. 0 UV
fair
37.0 AQI
fair
37.0 AQI
Fill 2Created with Sketch.
10 °C
0 UV

Main pollutants

37.0
PM2.5
30.0
PM10
12.0
NO2
13.0
O3
  • outdoor sports
  • bring baby out
  • eating outside
The air is moderately polluted. Greater than the maximum limit established for one year by WHO. A long-term exposure constitutes a health risk.

Live air quality report and air quality forecast in San Mateo

37.0
PM2.5
30.0
PM10
12.0
NO2
13.0
O3

Annual Average 26 AQI
Days per year at this level

Main pollutants

AQI

  • 37.0
    PM2.5
  • 30.0
    PM10
  • 12.0
    NO2
  • 13.0
    O3

µg/m³

  • 10
    PM2.5
  • 25
    PM10
  • 6
    NO2
  • 13.0
    O3
our sources

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