Millions of people across parts of Ohio, Kentucky, and Indiana have been warned to limit driving and reduce outdoor pollution as air quality levels deteriorate due to rising ozone pollution. The ...

A code orange air quality alert was issued for Friday, June 5, for counties across the Triad as concentrations of ground-level ozone pollution are anticipated to reach levels considered ...

Volatile organic compounds (VOCs) encompass a diverse group of carbon‐containing gases emitted from both natural and anthropogenic sources. Once released into the lower atmosphere, VOCs undergo ...

Millions of residents were urged to avoid using drive-thru lanes and limit certain everyday activities on Thursday.

Tropospheric ozone is a secondary pollutant formed by photochemical reactions involving nitrogen oxides and volatile organic compounds under sunlight. In urban environments, traffic, industry and ...

Ozone advisory issued. The elderly and those with weak constitutions are advised to refrain from outdoor activities.” This ...

Mitigation of the ozone-pollution problem is complicated by the fact that ozone (O 3) is a secondary pollutant; that is, it is not emitted directly into the atmosphere, but is produced by ...