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South San Francisco

San Mateo County, California

2026-04-21 07:00
CAQI (Europe)
Low
Pollutants
O3
μg/m³
63.5
PM10
μg/m³
15
PM2.5
μg/m³
2.8
NO2
μg/m³
6.8
CO
μg/m³
383.4
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
12℃
86%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2

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Cities Nearby

South San Francisco
AQI 27
San Bruno
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Brisbane
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Colma
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Millbrae
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Daly City
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Broadmoor
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Pacifica
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Hillsborough
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Burlingame
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San Mateo
AQI 29