India cities dominate world air pollution list
Fourteen Indian cities are among the world’s 20 most polluted, according to new data released by the World Health Organization (WHO).
The study says the northern city of Kanpur tops the list of cities that had the highest PM2.5 levels in 2016.
PM2.5 are tiny but deadly air particles, which can increase the likelihood of respiratory and cardiovascular diseases.
The study also said air pollution caused 4.2 million deaths in 2016.
Kanpur’s average PM2.5 level in the same year was 173, which is 17 times higher than the WHO’s safe limit.