Dhaka:The Department of Environment (DoE) has identified four new sources of noise pollution, which include recreational activities such as loud music, fireworks, and sporting events; commercial activities from restaurants, community centers, bars, and clubs; the use of hand mikes by beggars and hawkers; and announcements in doctor's chambers. These sources contribute to excessive or unwanted sound that can have harmful effects on human health and the environment.
According to Bangladesh Sangbad Sangstha, the DoE's recent survey on 'noise level measurement in 64 district towns' for the year 2022-2023 highlighted these findings. The survey identified a total of 25 major sources of noise pollution, including vehicle movements, hydraulic horns, traffic congestion, and various social, political, cultural, government, and non-government events, among others.
The survey further revealed that noise levels in mixed-use zones in Dhaka have increased, particularly at major transit bottlenecks such as Jatrabari Shahid Faruk roundabout, Shankar, Dhanmondi, and Shyamoli Mor. The highest recorded noise level was 129.4 decibels at Jatrabari Shahid Faruk roundabout. Additionally, areas like the Bangladesh Secretariat, Agargaon, and places around Parliament and the Prime Minister's Office have been designated as silent zones, yet studies indicate noise levels there exceed permissible limits.
Recommendations from stakeholders during the survey include the introduction of a noise pollution control hotline, regulation of sound levels at events, reduction of slow-moving vehicles, and better enforcement of noise regulations. Measures such as stopping illegal imports of hydraulic horns and shifting industrial areas away from the city were also suggested to mitigate noise pollution in Dhaka.