AQ Index for Columbia County, Washington

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Air Quality Index for Columbia County, Washington

The area with the highest AQ Index (as of 15:00 PDT) in is in the Dayton area. Particle Pollution (PM2.5) is measuring at 136 (Unhealthy for Sensitive Groups). This means members of sensitive groups may experience health effects. The general public is less likely to be affected.

Over the next few days, the highest primary air pollutant will be Particle Pollution (PM2.5) in the Dayton area. It is forecasted to be 0 (Moderate), meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Below is a clickable map of Columbia County, Washington. The markers on the map identify large, populated cities. If you hover over a marker, it will display the city name and the current AQ index. The color of the city markers also references the current AQ risk level.

Range	0 - 50	51 - 100	101 - 150	151 - 200	201 - 300	301 - 500
Color
Category	Good	Moderate	Unhealthy for Sensitive Groups	Unhealthy	Very Unhealthy	Hazardous

AQ Index Forecast by City in Columbia County

Below is a list of cities in Columbia County where we track and forecast the AQ index. Click on a city name to get the current AQ index as well as any available forcasts.

Dayton

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