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  4. Washington County

Washington County

Oregon

2026-09-15 19:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.8
O3
μg/m³
40.7
NO2
μg/m³
26.7
CO
μg/m³
500
Weather
  • ℃
  • ℉
18℃
62%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • NO2
  • CO
Places included
Aloha
AQI 29
Banks
AQI 31
Beaverton
AQI 29
Cedar Hills
AQI 29
Cornelius
AQI 31
Durham
AQI 40
Forest Grove
AQI 31
Garden Home-Whitford
AQI 29
Gaston
AQI 31
Hillsboro
AQI 30
King City
AQI 40
Metzger
AQI 29
North Plains
AQI 30
Raleigh Hills
AQI 29
Sherwood
AQI 40
Tigard
AQI 40
Tualatin
AQI 40
West Haven-Sylvan
AQI 23
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 31
Cornelius
AQI 31
Banks
AQI 31
Gaston
AQI 31
North Plains
AQI 30
Hillsboro
AQI 30
Aloha
AQI 29
Yamhill
AQI 31
Cedar Hills
AQI 29
Beaverton
AQI 29
West Haven-Sylvan
AQI 23