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 ...

Air-quality officials are advising people in several Southern California cities to keep their doors and windows closed amid ...

Cities in California, Texas and Arizona are expecting air quality to become unhealthy for sensitive groups on Thursday.

Air quality alerts are in effect across several regions in South Carolina, North Carolina and California because of elevated levels of fine particulates from wildfire smoke and windblown dust, the ...

The map pulls data from air monitors, hundreds of pollution sensors, and forecast models to provide real-time air quality index (AQI) readings for more than 1,000 locations. Los Angeles’ air ...

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 ...

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.

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 ...

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 ...