Juhu recorded the maximum noise levels in the city - 120 decibels (dB) - on Wednesday, the seventh day of Ganesh Chaturthi.
NGO Awaaz Foundation found decibel levels crossing the permissible limits set by the Noise Pollution Rules, 2000, in some areas. Owing to the use of loudspeakers and DJ sets during the processions, noise levels of 109 dB was recorded near Khar police station, while Worli recorded 108 dB.
Loudspeakers, drums and DJ sets were the main sources of noise pollution with levels exceeding 90 dB in some areas. “Loudspeakers, drums and firecrackers were the main reasons for the noise levels to cross the 100-dB mark,” said Sumaira Abdulali, convener, Awaaz Foundation, adding, “The revelers did not spare silence zones, including hospitals, even in police presence.”
The NGO also found several nighttime restrictions on noise levels were ignored.
In 2013, the highest noise level was recorded at Worli Naka from dhols and cymbals, reaching 123.2 dB recorded on September 18, 10th day. Last year, owing to the use of drums, noise levels on the 10th day at 114 dB on September 8 from both Juhu and Dadar.
Meanwhile, noise levels calculated at Navi Mumbai by the NGO on the fifth day of Ganpati immersions found CBD sector 2, Vashi sector 4 and Palm Beach Road to be loudest at 87 dB at all locations.
“Though the number of processions were less this year as compared to previous years, the areas were so noisy that it became difficult for us to even measure the sound levels,” Ajay Marathe, member, Awaaz Foundation.
Similarly, noise levels were seen at a maximum of 100 dB at three locations on the fifth day of immersions in Thane - Samata Nagar, Khopat and opposite the civic maternity hospital (a silence zone). “Most of the processions played loud music but the police made sure things were under control,” said Dr Mahesh Bedekar, a member of the NGO.
Police officers told HT that a separate team was initiated to check noise levels. “We warned mandals across the city that offences would be booked against them if noise rules were flouted. Police personnel will carry noise metres and measure sound levels at each procession on the last day of immersions,” said Dhananjay Kulkarni, deputy commissioner of police and spokesperson.