While Tuesday morning saw heavy winds causing dust pollution and creating a haze in the city, the pollution levels of the city were well above standard on Sunday and Monday. For PM10, the safe limit is 100ug/m3 as per Indian standards, while the WHO considers60ug/m3 as a safe limit. Experts pointed out that multiple sources generate pollutants which congregate during morning hours due to relatively lower temperatures, low winds, and lower mixing height. The reason why the pollution level is higher during morning hours today is mostly because there were violations during evening hours yesterday. “Garbage is often burned towards evening and early morning hours at several places across the city and remains undetected due to the timings.

Source: Hindustan Times June 12, 2019 07:30 UTC