A new report, the W.H.O.’s most comprehensive analysis so far of outdoor air quality worldwide, also said that about three million deaths a year — mostly from cardiovascular, pulmonary and other noncommunicable diseases — were linked to outdoor air pollution. Nearly two-thirds of those deaths are in Southeast Asia and the Western Pacific region, compared with 333,000 in Europe and the Americas, the report said.

http://www.nytimes.com/2016/09/28/world/air-pollution-smog-who.html