Ground level ozone (O3) also tropospheric ozone, is a trace gas of the troposphere, with an average concentration of 20–30 parts per billion by volume (ppbv), with close to 100 ppbv in polluted areas.

The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains a high concentration of ozone (O3) in relation to other parts of ...

A potent greenhouse gas and biological irritant, tropospheric ozone is also the primary source of atmospheric hydroxyl radicals, which remove numerous hazardous trace gases from the atmosphere.

Discover how rising temperatures and changing weather patterns are expected to intensify ground-level ozone pollution, posing significant health risks. Projecting Changes in the Frequency and ...

A new study finds climate change is likely to make upward spikes of ozone at ground level worse by 2050, which could result in many parts of the United States falling out of compliance with air ...

China's State Administration for Market Regulation has organized domestic research teams to achieve breakthroughs in two key ...