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  4. Washington County

Washington County

Oregon

2026-09-18 12:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.7
O3
μg/m³
36.4
NO2
μg/m³
6.2
CO
μg/m³
250
Weather
  • ℃
  • ℉
10℃
83%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • NO2
  • CO
Places included
Aloha
AQI 34
Banks
AQI 42
Beaverton
AQI 34
Cedar Hills
AQI 34
Cornelius
AQI 42
Durham
AQI 42
Forest Grove
AQI 42
Garden Home-Whitford
AQI 34
Gaston
AQI 42
Hillsboro
AQI 34
King City
AQI 42
Metzger
AQI 34
North Plains
AQI 34
Raleigh Hills
AQI 34
Sherwood
AQI 42
Tigard
AQI 42
Tualatin
AQI 42
West Haven-Sylvan
AQI 27
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 42
Cornelius
AQI 42
Banks
AQI 42
Gaston
AQI 42
North Plains
AQI 34
Hillsboro
AQI 34
Aloha
AQI 34
Yamhill
AQI 42
Cedar Hills
AQI 34
Beaverton
AQI 34
West Haven-Sylvan
AQI 27