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  4. Washington County

Washington County

Oregon

2026-05-30 00:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
72.9
PM2.5
μg/m³
4.2
NO2
μg/m³
16.4
CO
μg/m³
375
Weather
  • ℃
  • ℉
16℃
50%
11 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • CO
Places included
Aloha
AQI 20
Banks
AQI 14
Beaverton
AQI 20
Cedar Hills
AQI 20
Cornelius
AQI 14
Durham
AQI 28
Forest Grove
AQI 14
Garden Home-Whitford
AQI 20
Gaston
AQI 14
Hillsboro
AQI 45
King City
AQI 28
Metzger
AQI 20
North Plains
AQI 45
Raleigh Hills
AQI 20
Sherwood
AQI 28
Tigard
AQI 28
Tualatin
AQI 32
West Haven-Sylvan
AQI 22
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 45
Hillsboro
AQI 45
Aloha
AQI 20
Yamhill
AQI 14
Cedar Hills
AQI 20
Beaverton
AQI 20
West Haven-Sylvan
AQI 22