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  4. Washington County

Washington County

Oregon

2026-09-15 14:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.5
NO2
μg/m³
22.6
CO
μg/m³
500
O3
μg/m³
4.3
Weather
  • ℃
  • ℉
13℃
81%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • NO2
  • CO
  • O3
Places included
Aloha
AQI 27
Banks
AQI 29
Beaverton
AQI 27
Cedar Hills
AQI 27
Cornelius
AQI 29
Durham
AQI 38
Forest Grove
AQI 29
Garden Home-Whitford
AQI 27
Gaston
AQI 29
Hillsboro
AQI 33
King City
AQI 38
Metzger
AQI 27
North Plains
AQI 33
Raleigh Hills
AQI 27
Sherwood
AQI 38
Tigard
AQI 38
Tualatin
AQI 38
West Haven-Sylvan
AQI 24
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 29
Cornelius
AQI 29
Banks
AQI 29
Gaston
AQI 29
North Plains
AQI 33
Hillsboro
AQI 33
Aloha
AQI 27
Yamhill
AQI 29
Cedar Hills
AQI 27
Beaverton
AQI 27
West Haven-Sylvan
AQI 24