Image via Shutterstock Officials are issuing a public health warning in one major American city over the quality of the air.

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert Tuesday from 12 p.m. to 9 p.m. for ground-level ...

The average Air Quality Index (AQI) was in the “poor” category on Thursday, primarily due to the dust, which spiked the PM 10 ...

Delhi's air quality dipped to the "poor" category on May 15 following a dust storm driven by gusty winds from Pakistan.

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 ...

An Air Quality Alert has been issued for portions of western and central Minnesota on Monday, including Cass and Crow Wing ...

Teams of experts at Air Quality keep a network of statewide air monitors running smoothly year-round, which helps inform the ...

The overcrowded capital city of Bangladesh, has ranked third on the list of cities with the worst air quality with an AQI ...

Tourists at two Texas nature reserves have been warned of unhealthy air quality levels on Thursday, according to the U.S. Environmental Protection Agency (EPA).

"It was shocking. A huge cloud of dust hit us out of nowhere this morning. The roads were barely visible, and I saw branches ...

"An alert for possible Moderate (Air Quality Index yellow category) to Unhealthy for Sensitive Groups (Air Quality Index orange category) due to smoke has been issued for the following Nebraska ...