There are other different types of masks: N99 and N100 Masks: These provide even higher levels of filtration, with N99 filtering out 99% of airborne particles and N100 filtering up to 99.97%.

A graphic showing how reduced cloud cover and increased snowfall were observed downwind of an industrial air pollution hotspot.Credit: Velle Toll “This is the first direct evidence of industrial ...

Despite improvements in air quality in past decades, 156 million Americans still breathe in too much soot or ozone, says the annual State of the Air report from the American Lung Association.

The study builds on a wealth of research that has shown that people of color in America live with more pollution than their white neighbors. Fine particulate matter air pollution, known as PM 2.5 ...

Air pollution disproportionately affects communities of color in the U.S.—this has been known for years, if not decades. But a new study out Wednesday in the journal Science Advances shows that ...