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  4. Alameda County
  5. Union City

Union City

Alameda County, California

2024-11-21 22:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
79.3
PM2.5
μg/m³
2
CO
μg/m³
375
NO2
μg/m³
4.7
Weather
  • ℃
  • ℉
18℃
65%
32 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • CO
  • NO2
Places included
Site 49221
AQI 1
Data Sources
http://www.airnow.gov/

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