Immediately after the midnight celebrations, the air quality index (PM 2.5) turned 250 in some southern and northern parts of the city, with smog reminiscent of Kali Puja night
At a time when the air quality index (AQI) is deteriorating fast in Kolkata, questions are being raised about the limited number of CAAQMS machines, meant for monitoring AQI in different pockets of the city, compared to Mumbai and National .
Kolkata s air quality remains poor 10 days post-Diwali, with Ballygunge, Bidhannagar, and Jadavpur areas recording high air quality index, raising health concerns.