ScienceWHO: Over 90 percent of world population breathes dirty airTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience09/27/2016September 27, 2016Over 90 percent of people worldwide live in areas with bad air quality, the UN health agency said in a new report. Dangerous particulate matter kills an estimated six million people a year.https://p.dw.com/p/2QfPhAdvertisement