The red-level air quality index (AQI) category—covering values from 151 to 200—means the air is unhealthy for everyone, not ...

At 3:35 p.m. on Wednesday, the NWS Greenville-Spartanburg SC reported an air quality alert in effect until Thursday at ...

On Wednesday at 3:35 p.m. an air quality alert was reported by the NWS Greenville-Spartanburg SC in effect until Thursday at ...

The NWS San Diego CA reported an air quality alert at 11:08 a.m. on Wednesday in effect until Thursday at 8 p.m. for ...

Lingering smoke from prairie fires left air quality being temporarily deemed unhealthy the morning of April 16 in the Topeka area.

Residents in Kansas and Nebraska are facing "unhealthy" levels of air pollution on Wednesday, according to officials.