The United Nations' most recent assessment of the Montreal Protocol offers good news on the restoration of the ozone layer.

"Ozone would be a viable method for hospitals and other organizations to disinfect garments, goggles, and gloves."

The degradation of unsaturated oils due to reaction with ozone in the air can provide the age of fingerprints. It could tie suspects to crime scene.

Air pollution's effect on the progress of emphysema in the lungs is "in the same league as the effects of cigarette smoking."

Wildfires in British Columbia in 2017 caused the formation of a cloud so big that scientists say it will help them model the effects of a nuclear war.

"Some people call this higher concentration of pollutants around the human body the personal cloud... we call it the 'Pig-Pen Effect.'"

Data from six US regions suggest "an association between long-term exposure to ozone and progression of atherosclerosis."