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City air quality index 'severe', WBPCB blames weather

Press Trust of India  |  Kolkata 

The (AQI) in densely populated north was found to be 'severe' on Friday, but the Control Board (WBPCB) said it was due to present weather situations in this time of the year.

The at WBPCB's air monitoring station at Rabindra Bharati University, the only computerised monitoring station of north Kolkata, was 434 PM 2.5 at 1 pm, which was 'severe' in air monitoring terms.

The is an indicator of caused by three pollutants - NO2, PM 10 and PM 2.5. The index indicates air quality as 'good' for values of 0-100, 'moderate' for 101-200 and 'poor' for 201-300.

Even after Diwali, the PM 2.5 count was 330 at the Rabindra Bharati air monitoring station.

The reading at US Consulate's air monitoring station in South read 196 PM 2.5 at 5 pm during the day marked as 'unhealthy'.

While environmentalists described the situation as alarming, WBPCB said the reading at Rabindra Bharati cannot be of the entire city.

"Besides, there are factors like the overcast sky and flow of north-easternly wind from areas like into the city which don't allow suspended particulate matters to move upwards," Rudra said.

Environmentalist S M Ghosh said the situation was turning very very serious here.

Ghosh demanded the 10-year-old diesel commercial vehicles and 15-year-old private vehicles be banned immediately and and road side clothes ironing centres using low quality coal be shut down to stop the city from turning into the capital in

Refusing to comment on the view of the environmentalist, Rudra said the WBPCB has already undertaken a number of measures to curb in the twin cities of and including vehicular pollution.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Fri, December 07 2018. 20:30 IST