MIchigan's air quality will be unhealthy for some groups Saturday. Check the air quality index map to see if it's good or bad ...

MIchigan's air quality will be unhealthy for some groups Friday and Saturday. Check the air quality index map to see if it's good or bad near you.

The colors correspond to the scale discussed above. Rare areas of blue over land represent the most pollution-free air — under 2 micrograms per cubic meter of PM2.5. Click and drag the map to find ...

Poor air quality caused by ozone and other sources prompted the warnings across six states on Thursday and Friday.

The Meter Pro from SwitchBot is so easy to use, and will keep me updated on firework smoke, air hazards and more.

Smoking, air pollution and several other factors have led to significant disparities in lung health across the U.S.

The Wisconsin Department of Natural Resources issued an air quality advisory through noon June 4 across parts of Wisconsin.

The National Weather Service says that while skies may be hazy, wildfire smoke should remain aloft. Air quality at ground level remains good.

Canadian fires spread wildfire smoke across the U.S., impacting North Carolina air quality View interactive fire weather and air quality maps from Canada and the United States.

With several areas in Quezon City experiencing "unhealthy" to "very unhealthy" air quality levels, residents are urged to wear face masks when outdoors, adding to the challenge of the sweltering heat.

Here's an overview of the top 10 most polluted countries, ranked by their annual average PM2.5 concentration (measured in micrograms per cubic meter). Countries like Nepal, Uganda, and Rwanda also ...

Importantly, the study found that even modest increases in fine particulate matter—at levels below current ambient air quality standards set by the EPA—resulted in reduced athletic performance.