As of Monday evening, the AQI was between 30 and 60 throughout L.A. County — in the “good” or “moderate” range — according to data from the South Coast Air Quality Management District.

Wisconsin, Minnesota and Indiana all have air quality alerts, while Chicago's air quality currently ranks in the "unhealthy for sensitive groups" category.

A wildfire 30 miles southwest of Spokane near Bonne Lake broke out Wednesday night, forcing level 3 evacuations for people in the area. Earlier Thursday morning, Spokane's air quality was in the ...

By 8:45 a.m. Wednesday, Topeka's air quality rating had decreased to 34, which the EPA classifies as being "good." What does the EPA recommend when air quality is between 101 and 150?