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Air quality in San Mateo, CA

Live air quality report and air quality forecast in San Mateo

live
16 °C Fill 2Created with Sketch. 3 UV
fair
26.0 AQI
fair
26.0 AQI
Fill 2Created with Sketch.
16 °C
3 UV

Main pollutants

20.0
PM2.5
14.0
PM10
10.0
NO2
26.0
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

20.0
PM2.5
14.0
PM10
10.0
NO2
26.0
O3

Annual Average 26 AQI
Days per year at this level

Main pollutants

AQI

  • 20.0
    PM2.5
  • 14.0
    PM10
  • 10.0
    NO2
  • 26.0
    O3

µg/m³

  • 5
    PM2.5
  • 10
    PM10
  • 4
    NO2
  • 26.0
    O3
our sources

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