Diwali pollution: Kolkata's air quality dips from moderate to poor on Kali Puja night
India | November 05, 2021 14:49 ISTAt 5 pm on Kali puja day (Thursday), the Air Quality Index (AQI) was 260 at Rabindra Bharati University (RBU) area, 171 at Ballygunje, 227 at Bidhannagar, 189 at Fort William, 229 at Jadavpur, 146 at Victoria Memorial and 148 at Rabindra Sarobar air monitoring station, WBPCB official said