Bengal

XKolkata: With the minimum temperature in Kolkata dipping to 22 degree Celsius, the air quality index (AQI) in the city of joy deteriorated significantly and figured in the poor category, as per the AQI bulletin released at 4 pm by the Central Pollution Control Board (CPCB).

Among the six non-attainment cities in the state—four, including Kolkata, were in the poor category and two namely Asansol and Durgapur were in the ‘moderate’ range. This is the first time since March this year when the AQI has slipped into the ‘poor’ category.

As per CPCB data, Haldia had the highest AQI of 252 , Barrackpore 248, Howrah 239 and Kolkata 219.

The Paribesh App of the West Bengal Pollution Control Board showed that even at around 7 pm on Wednesday, reading at some places like Victoria Memorial

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