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.

If you have been hearing about poor air quality in New York City Friday, you can breathe a deep sigh of relief (literally): ...

Those groups particularly sensitive to particulate matter in the air may want to limit time outside Friday and Saturday.

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

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

Air purifiers are a great tool for improving your indoor air quality. You could also invest in a sensor just so you know what ...

Earlier, Grap-3 restrictions were reimposed in Delhi after the city's AQI dropped to 'severe' level on Wednesday (January 29) ...

Missoula is under an Air Stagnation Advisory until Friday. But, what exactly does that mean? Let's learn more about ...

Even though the Palisades and Eaton fires are now mostly contained, the Santa Ana winds have led to new fires flaring up ...

I’m very happy to say what we studied, what we expected and what we planned for is what seems to be happening,” the MTA’s ...

Researchers contributing to the ASCENT network of air quality sensors observed spikes in lead and chlorine downwind from the Eaton Fire – and their measurements are now publicly available.