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  4. Washington County

Washington County

Oregon

2026-09-15 19:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.9
O3
μg/m³
34.3
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 30
Banks
AQI 32
Beaverton
AQI 30
Cedar Hills
AQI 30
Cornelius
AQI 32
Durham
AQI 40
Forest Grove
AQI 32
Garden Home-Whitford
AQI 30
Gaston
AQI 32
Hillsboro
AQI 30
King City
AQI 40
Metzger
AQI 30
North Plains
AQI 30
Raleigh Hills
AQI 30
Sherwood
AQI 40
Tigard
AQI 40
Tualatin
AQI 40
West Haven-Sylvan
AQI 24
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 32
Cornelius
AQI 32
Banks
AQI 32
Gaston
AQI 32
North Plains
AQI 30
Hillsboro
AQI 30
Aloha
AQI 30
Yamhill
AQI 32
Cedar Hills
AQI 30
Beaverton
AQI 30
West Haven-Sylvan
AQI 24