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  4. Washington County

Washington County

Oregon

2026-05-28 20:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
85.7
PM2.5
μg/m³
5.4
NO2
μg/m³
16.4
CO
μg/m³
375
Weather
  • ℃
  • ℉
27℃
51%
8 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • CO
Places included
Aloha
AQI 29
Banks
AQI 15
Beaverton
AQI 29
Cedar Hills
AQI 29
Cornelius
AQI 15
Durham
AQI 40
Forest Grove
AQI 15
Garden Home-Whitford
AQI 29
Gaston
AQI 15
Hillsboro
AQI 46
King City
AQI 40
Metzger
AQI 29
North Plains
AQI 46
Raleigh Hills
AQI 29
Sherwood
AQI 40
Tigard
AQI 40
Tualatin
AQI 40
West Haven-Sylvan
AQI 20
Data Sources
http://www.airnow.gov/

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Cities Nearby

Forest Grove
AQI 15
Cornelius
AQI 15
Banks
AQI 15
Gaston
AQI 15
North Plains
AQI 46
Hillsboro
AQI 46
Aloha
AQI 29
Yamhill
AQI 15
Cedar Hills
AQI 29
Beaverton
AQI 29
West Haven-Sylvan
AQI 20