The air quality bulletin, published by the Central Pollution Control Board at 4pm every day, showed that the air quality was “poor” in Calcutta and Howrah on Sunday. The bulletin states that in a city with multiple monitoring locations, the average value is used to indicate the air quality result. Four stations in Howrah — Belur Math, Dasnagar, Ghusuri and Padmapukur — also reported “poor” air quality. The remaining stations reported “moderate” air quality, the best reading on Sunday, which is two levels below the best category in the National Air Quality Index. The air quality bulletin showed PM 2.5 was the “prominent pollutant” in both cities on Sunday.

Source: The Telegraph January 05, 2026 01:27 UTC