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 ...

According to the US Environmental Protection ... The EPA measures regional air quality index (AQI) by how hazardous it is to the general public. Discover the AQI in your city by searching below.

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 ...

The Air Quality Index (AQI) is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. For more ...

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 ...

Erin Davis/Axios Visuals Air quality in Salt Lake City is getting worse, according to year-over-year data. Why it matters: Long-term exposure to poor air quality is harmful to our health. By the ...

It comprises two measures: the number of days with an air quality index below a certain threshold and the number of violation points against drinking water systems in each state. Learn more about ...

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 ...