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  4. Washington County

Washington County

Oregon

2026-05-28 01:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
72.9
PM2.5
μg/m³
3
NO2
μg/m³
14.4
CO
μg/m³
375
Weather
  • ℃
  • ℉
24℃
49%
19 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • CO
Places included
Aloha
AQI 16
Banks
AQI 17
Beaverton
AQI 16
Cedar Hills
AQI 16
Cornelius
AQI 17
Durham
AQI 20
Forest Grove
AQI 17
Garden Home-Whitford
AQI 16
Gaston
AQI 17
Hillsboro
AQI 17
King City
AQI 20
Metzger
AQI 16
North Plains
AQI 17
Raleigh Hills
AQI 16
Sherwood
AQI 20
Tigard
AQI 20
Tualatin
AQI 32
West Haven-Sylvan
AQI 15
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 17
Cornelius
AQI 17
Banks
AQI 17
Gaston
AQI 17
North Plains
AQI 17
Hillsboro
AQI 17
Aloha
AQI 16
Yamhill
AQI 17
Cedar Hills
AQI 16
Beaverton
AQI 16
West Haven-Sylvan
AQI 15