Nationally, the “State of the Air” report found that 156 million people in the U.S., or 46%, live in an area that received a failing grade for at least one measure of air pollution. Black and Hispanic ...

It's always encouraged to avoid breathing in smoke, and remember the air quality still may be unsafe even if you do not smell smoke.

Three people monitored their air quality in different locations for several months. This is what we discovered.

A new report found that nearly half of Americans are "living in places that get failing grades" for air quality.