Air pollution shuts down New Delhi

Air pollution is becoming increasingly serious in India, and debilitating smog in New Delhi during the winter months (November–February) is a recurring phenomenon. In November 2017, the city experienced an extremely severe shock from air pollution, with PM2.5 levels rising steeply. Regular sources of ongoing pollution in the city – including industrial smoke stacks, hotels and restaurants using coal, vehicle emissions, and dust from construction and demolition sites – were compounded by seasonal events.