Researchers estimate the average person inhales 3,200 larger microplastics and 68,000 tiny, lung-penetrating microplastics per day.

A new study suggests early-life exposure to fine particulate air pollution and outdoor artificial light at night increases the risk of papillary thyroid cancer in children and young adults.

An analysis of 17 years of data from 6 major U.S. cities finds residents exposed to higher levels of air pollution are more likely to develop blood clots.

Children exposed to unsafe levels of fine particulate matter through wildfires and other extreme forms of air pollution face an increased risk of depression, anxiety and other internalizing symptoms, a new study finds.