The World Health Organisation (WHO) has pegged air quality in most cities worldwide below its guidelines for safe levels, but India appears among the worst.
According to the UN agency’s latest pollution data, Delhi (not Beijing) tops the list of most polluted cities. Among the world’s 20 most polluted cities in the world, 13 are in India. Of the 13, three are in Punjab: Amritsar (no. 14), Ludhiana (no. 15) and Khanna (no. 20).