39 Of World`s 50 Most Polluted Cities Are In India, Says World Air Quality Report

Chad, Iraq, Pakistan, Bahrain, Bangladesh, Burkina Faso, Kuwait, India, Egypt and Tajikistan were the top 10 most polluted countries while Australia, Estonia, Finland, Grenada, Iceland, and New Zealand met the WHO PM2.5 guideline (annual average of 5 Aug/m3 or less).