When you think of the United States, perhaps things like baseball, McDonald’s, the New York Times Square, or the Grand Canyon ...

This measure, based on data from the Environmental Protection Agency, evaluates states on the number of days the Air Quality Index in counties was not rated “good.” U.S. News calculated a ...

SAN DIEGO (FOX 5/KUSI) — A recent national air quality ... Twelve cities in California were ranked on at least one of the lists of the 25 most polluted cities in America.

and forecast models to provide real-time air quality index (AQI) readings for more than 1,000 locations. Los Angeles’ air quality is closely tied to weather patterns. Clear, breezy days help ...

If you were on social media last week or checked the Minnesota Pollution Control Agency website, you may have noticed an air quality alert was issued for parts of Minnesota, including McLeod and ...

PM2.5 is capable of traveling thousands of miles across the world on the wind — taking, for instance, about five days to reach the US from China ... The Air Quality Index, set by the ...

The Air Quality Index measured 156 near Forks, Washington, and received a rating of "unhealthy," meaning some members of the general public may experience health effects and members of sensitive ...