Ozone pollution levels dropped early in pandemic

During spring and summer of 2020, ozone at 1-8 kilometers (0.6-5 miles) above Earth's surface fell by 7% on average across the Northern Hemisphere, a new study finds. The decrease is likely explained by curtailed transportation ...

Measuring ozone chemistry in an occupied residence

An international team of researchers has taken a look at the amount of ozone in an occupied residence in order to measure both ozone and volatile organic compounds (VOCs) associated with chemical reactions with ozone. In ...

Water disinfection with ozone

While chlorine and ultraviolet light are the standard means of disinfecting water, ozone is equally effective in killing germs. To date, ozone has only been used as an oxidation agent for treating water in large plants. Now, ...

Paul Crutzen, who shared Nobel for ozone work, has died

Paul J. Crutzen, a Dutch scientist who won the Nobel Prize for chemistry for his work understanding the ozone hole and is credited with coining the term Anthropocene to describe the geological era shaped by mankind, has died.

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