Additionally, Buncombe, Swain and Polk counties will have a Code Red air quality alert today, according to the North Carolina ...

Wildfire smoke is causing hazy skies in Western North Carolina, prompting air quality alerts for several counties.

Several WNC counties are under severe air quality alerts for Thursday, March 27, with one being issued a Code Purple.

Clean air has become one of America’s best investments, returning $10 for every $1 spent on regulations, by one estimate.

Air quality indexes indicate how polluted the air is, or forecast how polluted it could become, based on levels of five pollutants, according to the U.S. Environmental Protection Agency. Government ...

WEST MICHIGAN — Air quality is improving quickly across West Michigan today, after skies darkened for much of Saturday with a dark brown plume of dust and dirt overhead. For several hours Saturday ...

The quality of the air we breathe and the water we drink are critical aspects of leading a healthy, productive life. The air and water quality subcategory informs the best states for natural ...

The EPA has established national air quality standards for each pollutant to protect the public. By these standards, ground-level ozone and airborne particles are America's greatest threats to ...