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  4. Washington County

Washington County

Oregon

2026-09-18 07:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.4
O3
μg/m³
47.1
NO2
μg/m³
10.3
CO
μg/m³
250
Weather
  • ℃
  • ℉
15℃
72%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • NO2
  • CO
Places included
Aloha
AQI 23
Banks
AQI 30
Beaverton
AQI 23
Cedar Hills
AQI 23
Cornelius
AQI 30
Durham
AQI 46
Forest Grove
AQI 30
Garden Home-Whitford
AQI 23
Gaston
AQI 30
Hillsboro
AQI 20
King City
AQI 46
Metzger
AQI 23
North Plains
AQI 20
Raleigh Hills
AQI 23
Sherwood
AQI 46
Tigard
AQI 46
Tualatin
AQI 46
West Haven-Sylvan
AQI 22
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 30
Cornelius
AQI 30
Banks
AQI 30
Gaston
AQI 30
North Plains
AQI 20
Hillsboro
AQI 20
Aloha
AQI 23
Yamhill
AQI 30
Cedar Hills
AQI 23
Beaverton
AQI 23
West Haven-Sylvan
AQI 22