https://phys.org/news/2018-11-polluted-delhi-air-akin-death.html

Every November, hospital wards fill with gasping patients as the tell-tale thick grey haze which hit on Monday shrouds the city of 20 million.

"Delhi air is like a death sentence for him," said Srinivas K. Gopinath, a thoracic surgeon at Sir Ganga Ram hospital in the Indian capital where 29-year-old Kumar was treated.