The following is accurate according to an [scientific report][1] published in Nature:

> Nature 525, 367–371 (17 September 2015) doi:10.1038/nature15371
Received 10 May 2014 Accepted 27 July 2015 Published online 16 September 2015. http://www.nature.com/nature/journal/v525/n7569/full/nature15371.html


Scientists from Harvard University and other countries such as Cyprus and Germany measured the most detailed estimates yet of the toll of air pollution, in a quest to find the cause. The study found that air pollution is killing 3.3 million people a year worldwide, that is divided as such:

China: **1,400,00 deaths/year.** <br>
India: **645,000 deaths/year.** <br> 
Pakistan: **110,000 deaths/year.** 


The study also predicted that the yearly death total will double to about 6.6 million a year by 2050.


  [1]: http://www.nature.com/nature/journal/v525/n7569/full/nature15371.html