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  4. Washington County

Washington County

Oregon

2026-05-29 19:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
53.6
PM2.5
μg/m³
3.9
NO2
μg/m³
34.9
CO
μg/m³
375
Weather
  • ℃
  • ℉
16℃
56%
14 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • CO
Places included
Aloha
AQI 21
Banks
AQI 14
Beaverton
AQI 21
Cedar Hills
AQI 21
Cornelius
AQI 14
Durham
AQI 30
Forest Grove
AQI 14
Garden Home-Whitford
AQI 21
Gaston
AQI 14
Hillsboro
AQI 20
King City
AQI 30
Metzger
AQI 21
North Plains
AQI 20
Raleigh Hills
AQI 21
Sherwood
AQI 30
Tigard
AQI 30
Tualatin
AQI 30
West Haven-Sylvan
AQI 24
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 14
Cornelius
AQI 14
Banks
AQI 14
Gaston
AQI 14
North Plains
AQI 20
Hillsboro
AQI 20
Aloha
AQI 21
Yamhill
AQI 14
Cedar Hills
AQI 21
Beaverton
AQI 21
West Haven-Sylvan
AQI 24