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  4. Washington County

Washington County

Oregon

2026-05-25 13:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
79.3
PM2.5
μg/m³
3.7
NO2
μg/m³
4.1
CO
μg/m³
0
Weather
  • ℃
  • ℉
11℃
64%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • CO
Places included
Aloha
AQI 23
Banks
AQI 14
Beaverton
AQI 23
Cedar Hills
AQI 23
Cornelius
AQI 14
Durham
AQI 24
Forest Grove
AQI 14
Garden Home-Whitford
AQI 23
Gaston
AQI 14
Hillsboro
AQI 17
King City
AQI 24
Metzger
AQI 23
North Plains
AQI 17
Raleigh Hills
AQI 23
Sherwood
AQI 24
Tigard
AQI 24
Tualatin
AQI 35
West Haven-Sylvan
AQI 22
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 14
Cornelius
AQI 14
Banks
AQI 14
Gaston
AQI 14
North Plains
AQI 17
Hillsboro
AQI 17
Aloha
AQI 23
Yamhill
AQI 14
Cedar Hills
AQI 23
Beaverton
AQI 23
West Haven-Sylvan
AQI 22