Air pollution used to be much worse. In October of 1948, a thick, choking smog settled over the small Pennsylvania town of Donora. The town was home to two steel plants.

The researchers created a model to look at levels of air pollution called PM2.5 – also sometimes called particle pollution or particulate matter pollution – and levels of antibiotic resistance ...

The US Environmental Protection Agency finalized a key update to the federal air quality standard for fine soot – a step to reduce deadly air pollution that’s been over a decade in the making.

Millions of Americans live in places with unhealthy levels of air pollution 04:21. Nearly 188,000 dementia cases in the U.S. each year may have been caused by air pollution, researchers estimate ...