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  4. San Marcos

Air quality in San Marcos, CA

Live air quality report and air quality forecast in San Marcos

live
11 °C Fill 2Created with Sketch. 0 UV
poor
69.0 AQI
poor
69.0 AQI
Fill 2Created with Sketch.
11 °C
0 UV

Main pollutants

41.0
PM2.5
69.0
PM10
56.0
NO2
2.0
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

41.0
PM2.5
69.0
PM10
56.0
NO2
2.0
O3

Annual Average 37 AQI
Days per year at this level

Main pollutants

AQI

  • 41.0
    PM2.5
  • 69.0
    PM10
  • 56.0
    NO2
  • 2.0
    O3

µg/m³

  • 11
    PM2.5
  • 58
    PM10
  • 45
    NO2
  • 2.0
    O3
our sources

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