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  4. San Mateo County

San Mateo County

California

2024-05-23 17:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
65.4
PM2.5
μg/m³
11.6
NO2
μg/m³
12.7
CO
μg/m³
404.2
SO2
μg/m³
0.6
Weather
  • ℃
  • ℉
18℃
60%
11 kph
6 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Atherton
AQI 22
Belmont
AQI 22
Brisbane
AQI 19
Broadmoor
AQI 19
Burlingame
AQI 22
Colma
AQI 19
Daly City
AQI 19
East Palo Alto
AQI 22
El Granada
AQI 22
Emerald Hills
AQI 22
Foster City
AQI 22
Half Moon Bay
AQI 22
Highlands-Baywood Park
AQI 22
Hillsborough
AQI 22
La Honda
AQI 22
Menlo Park
AQI 22
Millbrae
AQI 19
Montara
AQI 19
Moss Beach
AQI 22
North Fair Oaks
AQI 22
Pacifica
AQI 19
Pescadero
AQI 22
Portola Valley
AQI 22
Redwood City
AQI 22
San Bruno
AQI 19
San Carlos
AQI 22
San Mateo
AQI 22
South San Francisco
AQI 19
West Menlo Park
AQI 22
Woodside
AQI 22
Data Sources
http://www.airnow.gov/

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Cities Nearby

Half Moon Bay
AQI 22
El Granada
AQI 22
Highlands-Baywood Park
AQI 22
Emerald Hills
AQI 22
Woodside
AQI 22
Moss Beach
AQI 22
Belmont
AQI 22
San Carlos
AQI 22
Redwood City
AQI 22
Portola Valley
AQI 22
Hillsborough
AQI 22