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): ...

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

On Friday at 10:36 a.m. an air quality alert was issued valid until Saturday at 10:45 a.m.

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

Researchers contributing to the ASCENT network of air quality sensors observed spikes in lead and chlorine downwind from the ...

The Centre's air quality panel reimposed GRAP 3 restrictions in the Delhi-National Capital Region after air quality worsened.

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

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 ...

DEQ air monitoring stations showed "moderate" air quality across most of Portland Wednesday morning. It's expected to rapidly ...

The national capital witnessed a thin layer of fog on Thursday morning while the AQI stood at 381 at 8 am. Delhi recorded a ...