A NASA-supported study found that wildfire smoke is significantly increasing ground-level ozone pollution across the United ...

For decades, the United States made steady progress in reducing surface ozone pollution, the main ingredient in smog. But ...

While you may think of ozone as a welcome element in our Earth's atmosphere that protects us from the sun's harmful radiation, ground-level ozone that we breathe is a harmful pollutant.

Officials are also asking residents to help limit additional pollution during the alert period.

The Oklahoma Department of Environmental Quality issued an air quality alert on Thursday, May 14, for different parts of the state, including Oklahoma City and Lawton, according to the National ...

A new MIT-led study confirms that the Antarctic ozone layer is healing, as a direct result of global efforts to reduce ozone-depleting substances. Scientists including the MIT team have observed signs ...