Kolkata's air quality improves by 80-90% after cyclone-induced rainfall

Kolkata's air quality improved by around 80-90 per cent after Cyclone Jawad-induced rain lashed the city in the last couple of days

Whether West Bengal emerges as a role model or not in tackling the corona crisis is yet to be seen, but surely it is ahead of the curve in containing it. | Photo: Reuters
Photo: Reuters
Press Trust of India Kolkata
2 min read Last Updated : Dec 07 2021 | 11:44 AM IST

Kolkata's air quality improved by around 80-90 per cent after Cyclone Jawad-induced rain lashed the city in the last couple of days, pollution control board officials and environmentalists said on Tuesday.

The Air Quality Index (AQI) of 20 (good) was registered at Victoria Memorial, 43 (good) at Ballygunge, 33 (good) at Rabindra Sarobar, and 51 (satisfactory) at Rabindra Bharati University at 7 AM on Tuesday, as per data provided by the Central Pollution Control Board.

It was 185 (moderate) at Victoria Memorial, 212 (poor) at Ballygunge, 163 (moderate) at Rabindra Sarobar, and 307 (very poor) at Rabindra Bharati University at 9 AM on December 3 before the rain kicked in, it said.

"A maximum of 90 per cent and a minimum of 80 per cent improvement in the AQI of Kolkata was reported after the cyclone-induced rain lashed the city. This was a record low for the city in the month of December in the last 40 years," Environmentalist S M Ghosh told PTI.

West Bengal Pollution Control Board (WBPCB) Chairman Kalyan Rudra said that the improvement in AQI was very encouraging and air pollution was certainly one of the lowest, and the unseasonal rain definitely played a part in it.

He, however, said there was no mechanism to monitor real-time air quality four decades ago.

The average PM 2.5 level was at 19 mg per cubic meter, which is one of the lowest in the air pollution history of the eastern metropolis, the WBPCB said.

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Even Howrah's Ghusuri, which normally records heavy air pollution due to the presence of several foundries where junk metals are processed, the AQI was 40 (good).

The AQI at Victoria Memorial monitoring station on December 6 last year was 254, and 175 in 2019.

(Only the headline and picture of this report may have been reworked by the Business Standard staff; the rest of the content is auto-generated from a syndicated feed.)

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Topics :KolkataRainfallCyclone

First Published: Dec 07 2021 | 11:44 AM IST

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