As the adoption of cleaner-burning engines and electric vehicles drives fossil fuel emissions lower, scientists have ...

This is due to the presence of colder temperatures, which facilitate the formation of polar stratospheric clouds. These clouds accelerate chemical reactions that break down ozone molecules.

A new MIT-led study confirms that the Antarctic ozone layer is healing, as a direct result of global efforts to reduce ...

On March 13, the U.S. Environmental Protection Agency announced the approval of the state of Texas’s clean-air plan—or State Implementation Plan— which addresses vehicle emissions and air quality in ...

At this scale, we can observe the earliest stages of new particle formation, where fragrances react with ozone to form tiny molecular clusters. These clusters then rapidly evolve, growing and ...

In densely populated coastal areas, reactions of polluted air with sea salt aerosol from the ocean can lead to high surface ozone levels that affect air quality. Chlorine has become infamous for ...

The atmospheric formation of secondary pollutants such as ozone and aerosol and their influence on air quality and climate. Development and use of mass spectrometric and other methods for measurements ...