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  4. San Mateo County

San Mateo County

California

2025-03-11 20:00
AQI (India)
Satisfactory
Pollutants|Pollens
O3
μg/m³
83.6
CO
μg/m³
375
NO2
μg/m³
6.4
PM2.5
μg/m³
3.6
Weather
  • ℃
  • ℉
16℃
54%
17 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • CO
  • NO2
  • PM2.5
Places included
Atherton
AQI 7
Belmont
AQI 7
Brisbane
AQI 5
Broadmoor
AQI 5
Burlingame
AQI 7
Colma
AQI 5
Daly City
AQI 5
East Palo Alto
AQI 7
El Granada
AQI 7
Emerald Hills
AQI 7
Foster City
AQI 7
Half Moon Bay
AQI 7
Highlands-Baywood Park
AQI 7
Hillsborough
AQI 7
La Honda
AQI 7
Menlo Park
AQI 7
Millbrae
AQI 5
Montara
AQI 5
Moss Beach
AQI 7
North Fair Oaks
AQI 7
Pacifica
AQI 5
Pescadero
AQI 7
Portola Valley
AQI 7
Redwood City
AQI 84
San Bruno
AQI 5
San Carlos
AQI 7
San Mateo
AQI 7
South San Francisco
AQI 5
West Menlo Park
AQI 7
Woodside
AQI 7
Data Sources
http://www.airnow.gov/

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Cities Nearby

Half Moon Bay
AQI 7
El Granada
AQI 7
Highlands-Baywood Park
AQI 7
Emerald Hills
AQI 7
Woodside
AQI 7
Moss Beach
AQI 7
Belmont
AQI 7
San Carlos
AQI 7
Redwood City
AQI 84
Portola Valley
AQI 7
Hillsborough
AQI 7