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  4. Washington County

Washington County

Oregon

2026-09-16 06:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.9
O3
μg/m³
30
NO2
μg/m³
22.6
CO
μg/m³
500
Weather
  • ℃
  • ℉
14℃
79%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • NO2
  • CO
Places included
Aloha
AQI 31
Banks
AQI 29
Beaverton
AQI 31
Cedar Hills
AQI 31
Cornelius
AQI 29
Durham
AQI 42
Forest Grove
AQI 29
Garden Home-Whitford
AQI 31
Gaston
AQI 29
Hillsboro
AQI 29
King City
AQI 42
Metzger
AQI 31
North Plains
AQI 29
Raleigh Hills
AQI 31
Sherwood
AQI 42
Tigard
AQI 42
Tualatin
AQI 42
West Haven-Sylvan
AQI 25
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 29
Hillsboro
AQI 29
Aloha
AQI 31
Yamhill
AQI 29
Cedar Hills
AQI 31
Beaverton
AQI 31
West Haven-Sylvan
AQI 25