The Air Quality Index, set by the Environmental Protection Agency, is your guide to how bad the air quality is outdoors. The ...

Indicators like the Air Quality Index (AQI), commonly used to track air pollution levels, provide a rough sense of the ...

The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) ...

Researchers at Brown University discovered that fine-particle pollution can significantly impact your marathon finish time ...

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 ...

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 ...

Share on Pinterest If you live in an area where you may be exposed to wildfire smoke, check your local Air Quality Index (AQI) before exercising outdoors. Jay L. Clendenin/Getty Images Wildfire ...

Recent data from the Environmental Protection Agency shows air quality in certain regions of the U.S. is deteriorating, ...

In the wake of the Palisades and Eaton fires, concerns about air quality across the county have been on the rise.

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 ...