What people cannot see can be very harmful. In 2012, a report on the Global Burden of Disease found that pollution from dangerous tiny particles and droplets in the air – what scientists call “fine particulate matter” – is among the leading causes of death and severe disability. According to estimates in this report, over 3.2 million deaths per year may be attributable to people breathing dangerous particles in their general environment.
This is a companion discussion topic for the original entry at https://talkingpointsmemo.com/?p=208179