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 ...

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 ...

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 ...

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

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 ...

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

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 ...

Dhaka, the overcrowded capital city of Bangladesh, has topped the list of cities with the worst air quality with an AQI index of 173 at 9:05am today (19 April). The air was classified as 'unhealthy', ...

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

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, ...