The advisories impact large areas of Idaho, Oregon, Montana and Washington, lasting through the end of January.

An air quality alert was issued on Tuesday at 5:03 a.m. for Josephine County.

A fire at the Owl Metals recycling facility that caused the Peninsula Expressway to shut down is still causing an air quality ...

The San Diego APCD has extended an air quality alert due to increased fine particle pollution from wildfire smoke for San ...

On Wednesday at 3:18 p.m. an updated air quality alert was issued valid until Thursday at 6 p.m. The alert is for Ventura ...

The Centre's panel invoked Stage 3 of the Graded Response Action Plan due to severe air pollution in Delhi-NCR. Restrictions ...

A surface inversion is preventing the normal mixing of air, meaning pollutants will remain trapped at lower altitudes.

EAST HELENA, Mont. - A cold weather inversion is impacting the East Helena area, leading to poor air quality conditions.

Air quality alerts: Your safety roadmap by the NWS Stay inside if possible, particularly if you have respiratory concerns or other health problems, or are a senior or child. If you must go out ...