New Delhi's air pollution hits ‘severe’ category

Pollution in New Delhi had almost disappeared earlier this year, when the government imposed a nationwide lockdown to stop the coronavirus. But the curbs have been lifted and the pollution is back.

New Delhi's AQI, which includes the concentration of PM2.5 particles as well as bigger pollutants, has stayed above 400, on a scale of 500, for five consecutive days, government data showed.

November is usually the worst month for pollution across north India as farmers burn off stubble in their fields and the cooler weather trap the pollution.