India lost 1.4 million lives to air pollution in 2013, while in China the toll was 1.6 million, estimates a World Bank report released on Thursday.

The report, released by the World Bank and the Institute for Health Metrics and Evaluation, shows that in 2013 more than five million deaths worldwide were attributed to health conditions caused by air pollution. About 60% of them were in the world’s two most populous countries.

Exposure to air pollution increases a person’s risk of contracting ailments such as lung cancer, stroke, heart disease and chronic bronchitis.

China and India aren’t among the worst hit in absolute terms because of the sheer size of their respective populations. Even after adjusting for population, these two countries along with Bangladesh, Sri Lanka and Pakistan were among the 15 nations with the highest toll per million population. China and India ranked 4th and 6th worst in the world respectively. Bangladesh, Sri Lanka and Pakistan were ranked 11th, 12th and 15th on this count. Read more