DETERMINATION OF NOISE LEVEL IN MAGURA MUNICIPALITY, BANGLADESH

Journal of the Asiatic Society of Bangladesh, Science

Noise pollution has been recognized as one of the most vital environmental pollutions that affecting urban area’s quality of life. Sound levels at different points of the study area have been recorded and presented spatially by geostatistical analysis. A comparison has been made between the study area data in 2019 and that of 2021. In 2021 the noise level was significantly higher despite the Covid 19 pandemic. The comparative study showed that the noise level of the study area in 2021increased significantly. Noise level data in the sample points of the study area on Friday (holiday) were also collected and found that it was higher than that of even working days, especially in the evening. J. Asiat. Soc. Bangladesh, Sci. 47(2): 99-108, December 2021

Noise pollution is addressed as a public health issue induced mainly by urbanization. It is a growing problem in developing cities like Mymensingh, the second-most densely populated city in Bangladesh. Noises of this city are primarily generated from different sources like mass gatherings, transport Vehicles, loudspeakers, Public address systems, festivals etc. The study was conducted at 26 locations, including commercial, sensitive, residential & mixed areas, to analyze the different noise levels from March 6, 2021 to March 14, 2021. GIS (ArcGIS 10.8) with IDW technic was used for detailed noise pollution mapping of the city. Recorded data were compared with Bangladesh Noise Standard (DoE 2006), WHO (2009) and US(EPA) standards. The obtained spatial analytic maps showed that the noise level of this city is higher than the guideline values and hazardous for human health. The highest (93.3 dB) level of sound was observed from Tangail Bus Stand and the lowest (44.9 dB) from Botanical Garden. The final result showed that the ambient noise levels of Mymensingh city areas were far higher than the standard levels. It was acute in overpopulated places and the areas with high traffic and excessive honking horns of various vehicles. This paper suggests that preventive measures should be imposed in extremely noise-polluted areas.

Medicon Agriculture & Environmental Sciences, 2022

Noise Pollution has become a serious health issue nowadays and emerging as a serious pollutant. This study is carried out in three semiurban towns to evaluate the impact of noise pollution in these areas. A total of 69 locations are selected in Asansol, Bankura, and Midnapore town including the Silent, Residential, Commercial, and Industrial zone. Since the noise level varies with atmospheric conditions, hence the study is divided into premonsoon, monsoon, and post-monsoon seasons. L1, L5, L10, L50, L90, L95, L99, Equivalent sound pressure level (Leq), Noise climate (NC), Noise pollution level (Lnp), and Noise traffic Index (TNI) were computed for evaluating the intensity of noise pollution. The result reveals that the equivalent sound pressure level (Leq) is much higher than the standards in all locations of the silent zones. Noise pollution level (Lnp) and Noise traffic Index (TNI) are also computed high in commercial and heavy traffic zones. The Noise climate (NC) value shows not much variation in noise intensity with pre-post and monsoon climates. This is a pioneer study on noise quality evaluation in these locations. This study will further help in preparing future management plans to combat noise pollution in these areas.

European Journal of Environment and Earth Sciences

This study was conducted in the Khulna metropolitan city to determine the status of noise pollution at major traffic intersections and assess the possible effect of noise on regular noise afflicted people. For this research, five busiest roadways and traffic intersections; two mixed zone and three commercial zones were selected purposively and 'ST-8850 Sound Level Meter' was used to record the noise pressure level. Average noise pressure level and some noise parameters (Leq, L10, L50, L90, and Lnp) were measured at different shifts in each location both on working days and holidays. The result evidently specified that noise level in all major traffic circles of Khulna metropolitan city was much higher than the recommended threshold of acceptable noise level set by the Department of Environment (DOE) of Bangladesh. It was observed that the mixed area (Sonadanga, Gollamari) tends to have a higher average noise level than those of the commercial area (Shibbari, Notunrasta, Dakb...

INTERNATIONAL JOURNAL OF ADVANCE RESEARCH, IDEAS AND INNOVATIONS IN TECHNOLOGY

In developing countries like India Assessment of Noise pollution is important task. Noise pollution adversely affects the health of human beings. The most important noises sources of noise are road traffic, aircraft, railways and industries, noise in the community from industrial and construction site and noise at home. Road traffic is by far the largest of these and accounts for about 78 per cent of noise annoyance. In India, vehicular traffic is increasing rapidly, which has given birth to overcrowded roads and noise pollution. This study is primarily focusing on the monitoring of noise pollution at different places in Raipur City. In this study, noise monitoring was carried out with the help of a sound level meter model (VA8080). Some important places of Raipur have been selected for noise level study purpose. All the places are categorized under different zones i.e. commercial zone, silent zone, industrial zone and residential zone. All data were collected between 07:00 am to 09:00 p.m. Every hour the noise levels have been measured. To make the noise level more accurate each reading were taken in a gap of 6 minutes, that is, 10 readings per hour. And the average of the readings was taken as per hour sound intensity level. The study period of the survey was 15 days. Therefore this study reveals that the noise levels are higher than the standard level for each zones.

The present study dealt with the noise mapping of Sahbagh (study area) to find out the actual scenario of noise pollution of the area. The sound level data was collected at three specific times of a day (9am-12pm, 2pm-4pm, & 6pm-8pm) in 170 location points of the study area for two different day situations (workday & holiday). After the standardization of sound level data, two GIS software (Surfer v.8 & ILEWIS v.3) along with graphic software were used to produce six noise maps of three specified times (9am-12pm, 2pm-4pm, & 6pm-8pm) for two different day situations (Holiday & Workday). The interpretation of noise maps showed that BIRDEM hospital, BSMMU, Shisu Park, and roadside shops were among the noise vulnerable zones which are exposed to the noise level >75dB . The highest noise level (Lday: 9am-12pm- 86dB (A); Location ID: E21) was recorded when the traffic load was high in a workday. The sound level was low (<55dB (A)) in the area which had vegetation cover in spite of high traffic noise at outdoor (e.g. Charukola institute, Public Library, Sohrawardi Park, South-western part of Shisu Park, inside the Sahbagh Thaana, Dhaka club, and northern part of BTF were such places). It was also observed from the noise maps that the most noise vulnerable times were 9am-12pm & 6pm-8pm for the workday situations and 2pm-4pm & 6pm-8pm for the holiday situations. The noise level in every location at three specified times for two different day situations was higher than the nationally & internationally recommended value for the mixed area. At last, the noise maps were proved to be very useful in illustrating the actual scenario of noise pollution.

2014

Noise pollution is considered to be one of the biggest problems in any urban livelihoods. Unplanned urbanization coupled with rapid growth of vehicular population causes increasing trend of noise pollution problem. Industrial activity, construction activity, use of loud speakers & public addressing systems, vehicular horns and other mechanical devices etc. in and around the town are the various noise sources have contributed deleterious effect on human health. The present study is an evaluation of present trend of noise in the Udaipur town areas. Equivalent noise levelis monitored in nine different stations in different parts of the town area and observed that the noise level is much above the statutory limits of Central Pollution Control Board. This study reveals that some areas of Udaipur town are highly exposed to the noise pollution.

World Journal of Advanced Research and Reviews, 2023

This research article reports on a study conducted on 2022 and 2023 to measure noise levels at five selected locations in Rajshahi, Bangladesh. During the study, selected noise locations NQ1 and NQ4 fell under the silent zone, NQ2 and NQ5 fell under the commercial zone, and NQ3 fell under the industrial zone followed by the regulations of Bangladesh. The maximum allowable noise level of Bangladesh at day time are 50 dB(A) in the silent zone, 70 dB(A) in the commercial zone, and 75 dB(A) in the industrial zone. The study found that noise levels at NQ1 and NQ4 exceeded the Bangladesh standard by almost 75%, while noise levels at NQ2 and NQ5 were around 25% higher than the standard. The study also measured the noise levels of auto-rickshaws using TT Horn and Plastic Air Horn and found that the noise level for the Plastic Air Horn was within the limit, but it was exceeded for the TT Horn. The study highlights the need for regulations to control noise pollution in Bangladesh and suggests possible interventions to reduce noise levels from auto-rickshaws.

This study attempts to build awareness to the noise pollution level of our city and also cultivate the areas of Dhaka city that are prone to health and environmental hazards in terms of noise pollution. By taking readings of certain locations in Dhaka city (Residential and commercial), and comparing it with the standard stated thresholds of DOE (Bangladesh department of environment). The purpose here is not only to analyze how good or bad the current noise pollution level is but also to understand exactly why this situation should be taken seriously. We also found a pattern that suggested that noise pollution differed according to the time of the day. At the end a small proposal is placed of how we can use a miniature palm sized computer to record sound from places that are prone to health hazards which will help keep a log of sound which can help further understand the situation of noise pollution we are having and may have in the future. This will also help in keeping sound files for analysis, and engage concerned people to keep a log of sound levels at a daily basis. Moreover, the analysis from the data it will collect can be used in traffic management system as well because most of the time, noise pollution occurs due to bad traffic management and due to vehicles not being maintaining. The major question is, do we have enough data collecting mechanisms to make such changes efficiently? We shall help resolve this matter. Noise pollution, a phenomenon which can be described as disturbing or excessive noise that harms not only the natural environment around us but also the living things that reside along it. According to the journal Assessment of Roadway Noise Level and Potential Mitigation Measures Sayeeda Bint Ayaz and Md. Mafizur Rahman Vol1, Issue 2, they took the liberty of collecting the information of the acceptable levels of noise/sound levels in recommended by Bangladesh Department of Environment (DOE) is given in table 1, located at the methodology section. 1 The point here is that the in table 1, it shows the maximum threshold of Noise level that should be maintained, but unfortunately, our report will further prove the fact that the acceptable threshold benchmarked by the DOE are not being fulfilled by we the people. Thus, we selected certain commercial and residential places to provide the fact that noise pollution is in fact haunting us. In this paper we wanted to analyze the sound impact in decibels of the places that we mentioned earlier and later propose a device that could help us collect sound data for long periods of time to help understand noise pattern and take decisions regarding traffic control, road management. To do that we further classified the scenario of our objectives are-i) Collecting Sound reading on working days and non-working days of the selected areas; ii) Analyzing and comparing the maximum, minimum and average noise impact in dB; iii) Comparing the results that we obtained

In the recent year's due to urbanization industrialization, growth in construction industry and facility provided in road transport in India has created excessive noise pollution which is displeasing for human and animal life. Noise pollution refers to such levels of Noise or Sound in the environment that are disturbing, irritating and annoying to living being. Both physiological and psychological health of human being and behavioral in nature can be affected by Noise Pollution. Also Noise pollution can cause annoyance and aggression, hypertension, high stress levels, hearing loss, sleep disturbances and child development. Washim is district place belonging to Vidarbha Region of Maharashtra State in India. As Washim town is developing area and a connected big rural area, there is a rapid urbanization and migration of people, alarming growth of population is causing serious environmental problems. Noise is one of the environmental problems that uncomforts in daily life. The objective of this paper is to study the noise level values for exceed the standards set by the central pollution control board and, to investigate the various noise parameters at different Zone.