Kolkata: The West Bengal Pollution Control Board (WBPCB) has decided to deploy seven teams in the city and its surrounding areas on the occasion of Kali Puja and Diwali to check adherence to the 90-decibel limit and the recent Supreme Court order on bursting firecrackers. The Supreme Court last month stipulated a two-hour window, from 8pm to 10pm, for bursting low-emission crackers. The 90-decibel norm has been in force in the state since late 90s in accordance with Calcutta High Court. Also Read – Rain batters Kolkata, cripples normal life There will be seven teams of pollution board officials in Kolkata and its nearby areas, while personnel would also be deployed in the districts to check violation of rules, WBPCB Chairman Kalyan Rudra told PTI here. The teams will act in coordination with the police and the administration, and particularly keep vigil near high-rises and areas adjacent to Kali Puja pandals, he said. “The board has given 180 sound-monitoring devices to the police, which was in addition to 317 more devices given last year. These devices can be effectively put to use to check the decibel level on spot,” Rudra noted. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killed The WBPCB control room will be working from 5 pm to 12 am on both the days, he said. “We had held a series of meetings with residents of high-rises in the past week, where we pointed out that the measures, as stipulated in the SC order, were for public benefit. If you burst a toxic cracker, you are endangering your health, as well as that of your family members,” the WBPCB chairman explained. Rudra also said that reports from 17 air quality monitoring stations in Kolkata were being separately tabulated to check any change of air quality in the run-up to the festival and afterwards. “The board has been assessing air quality in the city for the past seven days and the practice will continue till November 14 to detect any change in air quality in the run-up to the festival, during the peak festival hours and also afterwards,” he said, adding that the findings from the last few days would be analysed shortly.