South Carolina has several counties under air quality alerts due to the wildfires in the northern part of the state and ...

Several WNC counties are under severe air quality alerts for Thursday, March 27, with one being issued a Code Purple.

The United States Environmental Protection Agency ... Air quality is measured by the Air Quality Index, or AQI. The index was created by the Environmental Protection Agency in 1999.

The alert warns of serious health effects from particle pollution and advises all residents—especially sensitive groups—to limit outdoor activity depending on the air quality index level.

The United States Environmental Protection Agency ... Air quality is measured by the Air Quality Index, or AQI. The index was created by the Environmental Protection Agency in 1999.

By Lisa Friedman and Brad Plumer Reporting from Washington What’s the air quality in New Delhi, Jakarta or Buenos Aires? Until Tuesday, the United States Embassy in those cities could have told you.

air quality standards last year, data showed on Tuesday, as researchers warned that the war on smog would only get harder after the United States shut down its global monitoring efforts.

Los Angeles had the lowest air quality in the United States in 2024, according to the annual World Air Quality Report from IQAir. The annual report looks at data from more than more than 40,000 ...

WHICH U.S. CITIES HAVE THE DIRTIEST AIR? 2024 STATE OF THE AIR REPORT RANKS THEM The United States' Environmental Protection Agency uses the Air Quality Index (AQI) to measure and communicate ...