Air pollution in the U.S. declines during the COVID-19 pandemic

In response to the COVID-19 pandemic, the United States instituted business closures, social distancing and other policy measures to combat the spread of disease. University of Minnesota School of Public Health researchers ...

New, rapid mechanism for atmospheric particle formation

Carnegie Mellon University researchers working with an international team of scientists have discovered a previously unknown mechanism that allows atmospheric particles to very rapidly form under certain conditions. The research, ...

First-time direct proof of chemical reactions in particulates

Researchers at the Paul Scherrer Institute PSI have developed a new method to analyse particulate matter more precisely than ever before. Using it, they disproved an established doctrine: that molecules in aerosols undergo ...

Microplastics from ocean fishing can 'hide' in deep sediments

Microplastic pollution in the world's oceans is a growing problem, and most studies of the issue have focused on land-based sources, such as discarded plastic bags or water bottles. Now, researchers reporting in ACS' Environmental ...

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