Delhi schools to close for a week due to smog

Delhi, with a population of 20 million, is ranked as one of the world’s most-polluted cities. Photograph: Rajat Gupta/EPA

Delhi, with a population of 20 million, is ranked as one of the world’s most-polluted cities. Photograph: Rajat Gupta/EPA

source https://www.theguardian.com/world/2021/nov/13/delhi-schools-to-close-for-a-week-due-to-smog