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

The IMD has forecast thunderstorms and rain for Sunday with a maximum temperature of 39 degrees Celsius and minimum ...

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

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

Ozone is a gas comprised of three oxygen (O3) atoms. It is unstable and reacts easily to other gases. In its natural state, it is a component in several levels of the atmosphere. At high altitudes ...

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 ...

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

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

Air quality levels are harmful for sensitive populations in parts of Nebraska, and children are urged to stay indoors.

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 ...

The National Weather Service reported an air quality alert at 1:29 p.m. on Wednesday in effect until Friday at 7 a.m. The alert is for Kearney Area and Grand Island ...