We often hear about Delhi’s "very poor" air days, but what does that really mean for your health? A new study, published in IOP Science, titled: A framework for city-specific air quality health index: ...

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.

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 ...

Most people aren't checking the air quality index before exercising outside. Here's how to do it and why you should, according to doctors.