Parents and educators are being warned to limit children's time spent outdoors in parts of southern New Mexico and El Paso, ...

Mount Rushmore tourists hit with air quality warning - Air quality index values were estimated to have peaked at 161 at a key ...

Weather conditions can influence air quality and the impact of the Masters could be more or less pronounced depending on these conditions.

Everyone should cut back on the time they spend outdoors Friday, especially people with heart or lung disease, older adults, children, and teens, according to the U.S. Air Quality Index. Avoid ...

A new study has found a direct link between early-life exposure to ground-level ozone and asthma or wheezing in young children.

Air quality is measured by the Air Quality Index, or AQI. The index was created by the Environmental Protection Agency in 1999. When the AQI exceeds 50, air quality alerts, or AQAs, are issued. Above ...

A misleading post is doing the rounds on social media platforms claiming that Delhi witnessed clean air for the first time in three years.

On Tuesday at 1:59 p.m. the National Weather Service reported an air quality alert in effect until Wednesday at 10 a.m. The alert is for Nance, Merrick, Polk, Hamilton, York, ...

As fires burned in Los Angeles this year, newer toxin monitors found contaminants that aren’t measured by standard methods.

Air quality is measured by the Air Quality Index, or AQI. The index was created by the Environmental Protection Agency in 1999. When the AQI exceeds 50, air quality alerts, or AQAs, are issued. Above ...

Central, Mong Kok and Tai Po among areas reaching ‘serious’ levels as dusty northern airstream brings pollutants to city for ...

As the fires burned in Los Angeles, scientists and local air regulators deployed monitors to measure the levels of heavy ...