Air Quality Numbers Explained: As pollution in Delhi continues to rise without pause, residents are constantly checking the AQI levels to decide when it might be safe to step outdoors. Air Quality ...

Air pollution is in the "unhealthy" category for a region of California on Thursday morning, encompassing the towns of Keeler ...

Canadian wildfire smoke is affecting air quality in parts of Michigan. The EPA's air quality index (AQI) uses a color-coded scale to inform the public about air quality and associated health risks.

The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health risks. Michigan residents can check the AQI through various online resources, ...

Smoke from the Green Fire and other wildfires burning in and near Shasta County are polluting the air over the North State. The Shasta County Air Quality Management District and Shasta County Health ...

It wasn’t that long ago that few people were monitoring the air—not the government, not its citizens. Today, weather apps provide estimates of outdoor air quality, and the government’s own air quality ...