India’s capital Delhi suffered an air apocalypse on Thursday, with almost all air monitoring stations recording an Air Quality Index (AQI) above the “severe” and “hazardous” categories, with AQIs above 450 in many places and 800 in some areas. . An AQI over 400 can affect health, especially for those who are already ill. Delhi, with 20 million inhabitants, is one of the most polluted cities, shrouded in smog every winter due to construction dust, car exhaust emissions and the burning of crop residues by residents in the surrounding area. There are calls for schools to be closed in the most polluted weather.
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