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  4. Washington County

Washington County

Oregon

2026-01-20 05:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
8.2
O3
μg/m³
38.6
NO2
μg/m³
8.2
CO
μg/m³
250
Weather
  • ℃
  • ℉
1℃
81%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • NO2
  • CO
Places included
Aloha
AQI 34
Banks
AQI 40
Beaverton
AQI 34
Cedar Hills
AQI 34
Cornelius
AQI 40
Durham
AQI 32
Forest Grove
AQI 40
Garden Home-Whitford
AQI 34
Gaston
AQI 40
Hillsboro
AQI 78
King City
AQI 32
Metzger
AQI 34
North Plains
AQI 78
Raleigh Hills
AQI 34
Sherwood
AQI 32
Tigard
AQI 32
Tualatin
AQI 32
West Haven-Sylvan
AQI 39
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 40
Cornelius
AQI 40
Banks
AQI 40
Gaston
AQI 40
North Plains
AQI 78
Hillsboro
AQI 78
Aloha
AQI 34
Yamhill
AQI 40
Cedar Hills
AQI 34
Beaverton
AQI 34
West Haven-Sylvan
AQI 39