A new report has shed light on the locations of the most polluted cities in the U.S. On Tuesday, IQAir, a Swiss tech company ...

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.

Wondering what the air quality is like in your neighborhood? This interactive map gives you up-to-the-minute air quality updates and health recommendations for communities across Los Angeles ...

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This map tracks air quality near Detroit, and zoom out to see the rest of North America. Smoke from wildfires harmed the air in 2023.

In the following California air quality map, you can see how the air quality is where you live or throughout California. This information is provided via the United States Environmental Protection ...

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 ...