The Arizona Department of Environmental Quality issued an Ozone High Pollution Advisory for Maricopa County, warning of health risks and recommending precautionary measures.

Criegee intermediates (CIs)—highly reactive species formed when ozone reacts with alkenes in the atmosphere—play a crucial ...

Discover the lesser-known details about the chemical compounds responsible for the depletion of the ozone layer.

Lake City is in the top ten for worst ozone pollution in the U.S., according to the American Lung Association.

Louisville continues to struggle with poor air quality, according to a new report, as federal support is eroded.

Several U.S. cities are experiencing heightened air pollution levels on Wednesday, including parts of Chicago.

Almost half of everyone who lives in the United States breathes unhealthy levels of air pollution, according to the American ...

“The work to install additional valves to facilitate the installation of the temporary liquid oxygen storage system and adjust treatment chemical addition locations to meet regulatory requirements ...

A new study finds that children exposed to higher ozone levels in their first two years are significantly more likely to develop asthma and wheezing by age six, highlighting the urgent need for ...