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Air quality in San Marcos, CA

Live air quality report and air quality forecast in San Marcos

live
22 °C Fill 2Created with Sketch. 2 UV
poor
54.0 AQI
poor
54.0 AQI
Fill 2Created with Sketch.
22 °C
2 UV

Main pollutants

35.0
PM2.5
48.0
PM10
54.0
NO2
3.0
O3
  • outdoor sports
  • bring baby out
  • eating outside
The air has reached a high level of pollution. Higher than the maximum limit for 24 hours established by WHO.

Live air quality report and air quality forecast in San Marcos

35.0
PM2.5
48.0
PM10
54.0
NO2
3.0
O3

Annual Average 33 AQI
Days per year at this level

Main pollutants

AQI

  • 35.0
    PM2.5
  • 48.0
    PM10
  • 54.0
    NO2
  • 3.0
    O3

µg/m³

  • 9
    PM2.5
  • 42
    PM10
  • 37
    NO2
  • 3.0
    O3
our sources

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