Elevated levels of PM2.5 mean the pollution may pose a health risk to all members of the public in the affected areas.

Poor air quality has led to advisories recommending residents stay indoors in some areas of California. Official measurements ...

Thousands of people in parts northern Oregon have been warned of potentially dangerous air quality this weekend. A map from ...

Thousands of people in California and Oregon have been urged to stay indoors as air pollution reached unhealthy levels on ...

The Oregon Department of Environmental Quality issued an air quality advisory Monday for Lake County and southern Klamath ...

The Oregon Department of Environmental Quality issued an air quality advisory for Lake County and southern Klamath County and extends the advisory for southern Deschutes County due to stagnant air ...

Thousands of residents in communities across parts of California, including Fresno, and Oregon have been advised to stay inside by the Environmental Protection Agency (EPA) due to elevated amounts of ...

PORTLAND, Ore. (KOIN) — New data confirms that when Oregon’s air quality is poor, more people visit the emergency department and urgent care. The Oregon Health Authority recently announced the ...

PORTLAND, Ore. — The Oregon Department of Environmental Quality has issued an air quality advisory on Wednesday for Klamath and Jefferson counties due to wildfire smoke. It will last until at least 10 ...