A chemical reaction long assumed to be unimportant in urban air quality may be a significant source of ozone, the major component of smog. Hydroxyl (OH) radicals, among the most reactive natural ...

The human body’s exposure to ozone in indoor spaces generates highly reactive hydroxyl (OH), radicals which are largely responsible for the oxidation of most pollutant gases, researchers report. The ...

The human body's exposure to ozone in indoor spaces generates highly reactive hydroxyl (OH), radicals which are largely responsible for the oxidation of most pollutant gases, researchers report. The ...

We humans spend the vast majority of our time indoors, and we are constantly bombarded with compounds emitted from environmental sources. But we aren’t just passive targets of a chemical barrage. Our ...

An international effort to measure air quality in South Korea, a region with complex sources of pollution, may provide new insights into the atmospheric chemistry that produces ozone pollution, ...

The reactive hydroxyl radical, which helps sop up pollutant molecules in Earth’s atmosphere, has now also been found in the hellish atmosphere of Venus. The discovery promises to help scientists ...

An international collaboration of scientists has discovered a previously unidentified source of tropospheric hydroxyl radicals generated by the interaction of ozone with the surface of clouds. Their ...