Ozone pollution isn’t just a summer story anymore. In parts of northern China, high ozone levels are now appearing during ...

Officials cautioned that ozone formation is a complex process with many factors, saying they cannot be sure that the hot fall was the driving factor in October’s exceedances.

Atmospheric conditions are expected to support ozone formation in each region, with elevated ozone levels often associated with high temperatures, strong sunlight and light wind.

Ozone is formed through a chemical reaction that is triggered by heat. ABC15 meteorologist Justin Hobbs breaks down the science of ozone formation along with how the pollutant affects the human ...

Officials cautioned that ozone formation is a complex process with many factors, saying they cannot be sure that the hot fall was the driving factor in October’s exceedances.

Expect moderate levels of ground-level ozone, an urban pollutant that can affect those with sensitive respiratory systems, to be in the skies over the Houston metro area on Friday, according to ...