Urban air pollution – what are the main sources across the world?
Tuesday, December 1, 2015 - 09:40
in Health & Medicine
Particulate matter (PM) in the air can enter the human body, affecting the cardiovascular system as well as other major organs. Chronic exposure leads to a number of health risks. The European Commission's in-house science service, the Joint Research Centre (JRC) and the World Health Organization (WHO) have identified the main categories of PM in urban air in 51 different cities around the world. On average, traffic is the biggest source of air pollution, responsible for one quarter of particulate matter in the air.