scholarly journals Determination of Traffic Induced Noise Pollution and its Impact on City Dwellers in the Chittagong City Area

2018 ◽  
Vol 14 (8) ◽  
pp. 185
Author(s):  
Mohammad Nasir Uddin ◽  
Md. Shahidul Hoque ◽  
Muhammad Alamgir Islam
Keyword(s):  
Noise Level ◽  
Weighted Average ◽  
Noise Pollution ◽  
Sound Level ◽  
City Area ◽  
The Road ◽  
Average Value ◽  
Traffic Area ◽  
Average Maximum ◽  
The Government

Chittagong, the port city of Bangladesh, is one of the nosiest cities of the country. Extreme noise is very inimical for human health and environment. Noise pollution implies a discomfort and restlessness caused to humans by unwanted high intensity sound. Motorized traffic is one of the major sources of producing noise in Chittagong city. The present paper deals with determining the level of the noise pollution in Chittagong city area and its impact on city dwellers. In this study noise levels have been measured with digital sound level meter at eight different places of Chittagong city from 6:00 am to 9:00 pm during working days. Time weighted average noise level has been measured at the road side. The data have been analyzed to compute the average, maximum and minimum noise level in decibel (dB) with respect to traffic volume. From the study it was observed that the highest noise level in the road side in Chittagong city was 112 dB found at New Market and 2 No gate traffic area, which for exceeded the acceptable limit of 60 dB set by the Government of Bangladesh and minimum sound level 67 dB was recorded at GEC traffic area. The highest average value is 109.66 dB found at 2 No gate traffic area and lowest average value is 68.7 dB found at GEC traffic area. Questionnaire survey was done during the study to determine the health impact on the city dwellers. Most of the common problems, the dwellers suffering from noise pollution are headache, bed temper, sleeplessness, aggravation, hearing problems etc.

scholarly journals STUDY OF NOISE ON PASSENGER CAR SPEED

ASTONJADRO ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 195
Author(s):  
Syaiful Syaiful ◽  
Almas Fathin Irbah
Keyword(s):  
Growth Rate ◽  
Public Transport ◽  
Noise Level ◽  
Noise Pollution ◽  
Sound Level ◽  
Pollution Level ◽  
The Road ◽  
The Government ◽  
Level Meter ◽  
Motorized Vehicles

<p>Bogor Regency has an economic growth rate including the highest among cities and other districts around the Jakarta Capital Region. Regarding the condition of the vehicle population in Bogor district, the number of motorized vehicles in 2017 and 2018 experienced a growth of between 2% and 12%. In contrast to the growth rate of vehicles, the road growth rate is only 0.1% per year. Nurul Hidayah Mosque is located on Jalan Salabenda, the object of the author's research to find out how much influence the sound of motorized vehicles has on worship activities around the Nurul Hidayah mosque. In public transport car speed, motorcycle speed, and private car speed do not have a significant effect on the noise pollution produced. The noise level around the Nurul Hidayah Mosque, Jalan Salabenda Raya, Bogor Regency which has been measured the smallest is 56.4 dBA. This value exceeds the noise threshold of the Noise Level Standard Value for the Ministerial Decree, which is 55 dBA. So that it requires attention and cooperation from the government and the community to overcome the noise in the worship area. The calculation and analysis obtained is on the equation with the largest R Square value on the fourth day of the study, the third point (Sound Level Meter 3), with a contribution of 22.67%. Like the equation on the side, y = 73.251 + 0.004x<sub>1</sub>-0.311x<sub>2</sub>-0.003x<sub>3</sub>. The meaning of this equation is that if there is no decrease in the speed of motorbikes, private cars and public transport cars, the noise pollution level in SLM3 is 73,251 dBA. If there is an increase in the speed of public transport cars by 0.004, the decrease of motorbikes by 0.311, and an increase in the speed of private cars by 0.003, the noise pollution level will decrease by 0.31 dBA at SLM3.</p>

scholarly journals Monitoring of Noise Levels at Various Sites During Winter Season at Bhindawas Wetland, Haryana, India

2015 ◽  
Vol 10 (3) ◽  
pp. 807-812 ◽  
Author(s):  
Sunil Kumar ◽  
Rajesh Dhankhar
Keyword(s):  
Noise Level ◽  
Winter Season ◽  
Noise Pollution ◽  
Sound Level ◽  
Past Century ◽  
Noise Levels ◽  
Natural Ecosystems ◽  
The Road ◽  
The Past ◽  
Central Pollution Control Board

Noise pollution has increased over the past century, especially the past few decades, disturbing the integrity of natural ecosystems. Higher noise level not only harms humans, but threatens the birds. It cause reduction of bird’s species, reproductive failure and affect food availability. A comprehensive study on noise level of three pre-selected sites of Bhindawas wetland was carried out during the November 2010 and February 2011. At each site, noise level measurements were made at ten second interval for a period of 60 minutes. Equivalent continuous sound level (Leq) ware ranged between 42.45 dB(A) to 55.66 dB(A) and 42.45 to 55.66 dB(A), respectively during the November 2010 and February 2011. It was observed that the road side site which is near to the canal water inlet to wetland has more noise level (Leq ) than the standard prescribed by the Central Pollution Control Board (CPCB) for a silence zone (50 dB). The higher values of the peak noise levels (L1) was observed during the study period, which could be disturbed the birds and they fly away to the nearest water bodies.

scholarly journals Traffic Induced Noise Pollution and its Impact on Human Health in Chittagong City Corporation

2016 ◽  
Vol 8 (2) ◽  
pp. 37-40
Author(s):  
MT Islam ◽  
N Nahar ◽  
MJ Islam ◽  
MA Islam ◽  
MAM Hossen
Keyword(s):  
Noise Level ◽  
Weighted Average ◽  
Noise Pollution ◽  
Urban Life ◽  
Motor Vehicles ◽  
Heavy Vehicles ◽  
Time Weighted Average ◽  
The Common ◽  
The Government ◽  
The City

Noise is one of the most pervasive environmental problems. Excessive noise has become one of the major concerning of urban life. Chittagong, the port city of Bangladesh, is one of the nosiest cities of the country. With economic development, the situation is expected to worsen farther. Motor vehicles are the principal source of noise pollution in the city. This study illustrates the level of noise pollution in Chittagong city corporation and its impacts on city dwellers. The noise level is measured at 25 locations of Chittagong city road areas. Time-weighted average noise levels have been measured at the roadside. From the study it was observed that the highest noise level in the roadside in Chittagong city was about 93dB found at AK Khan Circle and Agrabad circle, which far exceeded the acceptable limit of 60 dB set by the Government of Bangladesh. The level of noise pollution is closely related with traffic volume, particularly with the number of heavy vehicles like trucks, buses as well as auto rickshaw have been observed during the study. Questionnaire survey was done during the study to determine the health impacts on the city dwellers. Most of the common problems, the dweller suffering from noise pollution are headache, bad temper, sleeplessness, aggravation, hearing problems etc.J. Environ. Sci. & Natural Resources, 8(2): 37-40 2015

scholarly journals ANALISIS TINGKAT KEBISINGAN LINGKUNGAN DI KELURAHAN PAHANDUT KECAMATAN PAHANDUT KOTA PALANGKA RAYA KALIMANTAN TENGAH

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Muh Azhari ◽  
Rudy Yoga Lesmana
Keyword(s):  
Noise Level ◽  
Qualitative Method ◽  
Air Transportation ◽  
Sound Level ◽  
Sound Level Meter ◽  
Google Maps ◽  
Average Value ◽  
The Third ◽  
Level Ii ◽  
Level Meter

Permasalahan lingkungan dari usaha kegiatan manusia untuk memenuhi kebutuhan hidup, seperti sandang, pangan, papan dan transportasi harus dilakukan penanganan dengan baik. Misalnya seperti pengaruh kegiatan transportasi udara terhadap kondisi kualitas lingkungan setempat  seperti kegiatan di Bandara Cilik Riwut Kelurahan Pahandut, Kecamatan Pahandut, Kota Palangka Raya Kalimantan Tengah. Metode penelitian yang digunakan merupakan metode kualitatif dengan analisis data instrumen seperti Sound Level Meter Instrument, Anemometer, GPS, Flight Radar, Google Maps Application & WECPNL Instrument (Weighted Equivalent Continuous Perceived Noise Level)  dan pengambilan data dilakukan selama tiga hari sesuai dengan kedatangan dan keberangkatan pesawat. Hasil penelitian dengan analisis WECPNL menunjukkan bahwa tingkat kebisingan di hari ke 2 lebih besar dibandingkan hari ke 3 dan hari ke 3 lebih besar dari hari ke 1 (87,2  > 82,2 > 75,9) dengan nilai rata-rata WECPNL sebesar 81,7. Kebisingan di bandara Cilik Riwut di Kota Palangka Raya Kalimantan Tengah termasuk kebisingan regional tingkat II dan III. Kegiatan yang dapat dilakukan untuk meminimalisir Risiko kebisingan tersebut yaitu dengan melakukan kegiatan rekayasa keteknikan dan menanam vegetasi yang berfungsi mengurangi kebisingan Kata kunci: Bandara, Kebisingan, Lingkungan. The environmental problems of the efforts of human activities to meet the needs of life, such as clothing, food, housing and transportation must be handled properly. For example, such as the influence of air transportation activities on local environmental quality conditions such as activities at Cilik Riwut Airport, Pahandut Village, Pahandut District, Palangka Raya City, Central of Kalimantan. The research method used is a qualitative method with data analysis instruments such as Sound Level Meter Instrument, Anemometer, GPS, Flight Radar, Google Maps Application and WECPNL Instrument (Weighted Equivalent Continuous Percepived Noise) and data collection is carried out for three days in accordance with the arrival and departure of the aircraft. Results of research with  WECPNL analysis show that the noise level on the second day is greater than the third day and the third day is greater than the first day (87,2  > 82,2 > 75,9) with  score average value is 81,7. Noise at Cilik Riwut airport in Palangka Raya City, Central Kalimantan including regional level II and III noise. activities that can be carried out are carrying out engineering activities and planting vegetation which have the function of reducing noise. Keyword: Airport, Environmental, Noice.

An Assessment of the Noise Level in a Residential Area Crossed by an Intensive Traffic Road - Comparative Analysis between on Site Measurements and Legal Standards

2017 ◽  
Vol 21 ◽  
pp. 544-550 ◽  
Author(s):  
Irina Stefan ◽  
Mihai Budescu
Keyword(s):  
Noise Level ◽  
Residential Buildings ◽  
Mean Value ◽  
Sound Level ◽  
Traffic Light ◽  
Maximum Acceleration ◽  
Mean Values ◽  
The Road ◽  
Legal Standards ◽  
The Mean

Nowadays the noise level increased due to the expanding of the urbanization and the extended number of vehicles. The aim of the study is to assess the level noise in the area of an urban intensive traffic road. The selected road has residential buildings on both sides and it makes the link between two major areas in the town. Last year, along with the rehabilitation of the bridge on this road and of the street’s pavement, a protection barrier has been mounted on the sidewalk.Measurements of the noise levels were taken during a workday, within rush-hours and low-traffic hours, using a sound level measuring instrument. The measurements were taken along the road, in three characteristic spots of the ramp input on the bridge: 1 – close to the traffic light (with the vehicles at rest), 2 - mid ramp (area of maximum acceleration) and 3 - at the end of the ramp, thus determining the noise level in the area. Measurements were also made perpendicular to the road: at the border of the sidewalk, behind the protective barrier and near the facade of the building, to determine the effectiveness of the protection barrier.Maximum, minimum and the mean value of the urban noise level in the area have been determined and compared to the legal standards for urban residential roads.By analyzing measured data it can be concluded that the mean values exceed the maximum permitted levels.

scholarly journals Effect of Noise Pollution Among Milling Machine Operators in North-West Nigeria.

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Ademola James Adeyemi ◽  
Semiu Adedeji Yusuf ◽  
Abubakar Arzika Zaki ◽  
Emmanuel Akujieze
Keyword(s):  
Noise Level ◽  
Internal Combustion Engines ◽  
Occupational Safety ◽  
Sound Intensity ◽  
Noise Pollution ◽  
Sound Level ◽  
Entire Body ◽  
Formal Sector ◽  
North West ◽  
Commercial Activities

Commercial activities are mostly centralized to main markets in many towns and cities of the Northern part of Nigeria. Such central markets constitute the noisiest part of the towns. Yet, there is no evidence that the workers and traders in such markets are aware of the challenges excessive noise pollution pose to their health. This problem serves as the basis for this research, which investigated the major source of noise pollution in Kebbi central market and make recommendation to improve the wellbeing of the people in the market.The market was divided into thirteen sections based on activities. These sections were visited twice a day for two weeks to measure their sound levels. The sound level was measured with a CEM digital noise level meter with an accuracy of ±3.5dB@1KHz. Thereafter, an ergonomic observation assessment of the noisiest section was carried out. The assessment was carried out based on rapid entire body assessment (REBA) methodology. The average sound intensity in all the sections exceeded the recommended safe sound level of 40dB. However, only the sound intensity at the grain and spice milling section (89.13 dB) exceeded the noise harmfulness level of 85dB. Operators were encouraged to use ear muffs or earplugs to minimise the exposure to harmful noise level. Proper electrification of the section was also recommended to minimise the use of internal combustion engines. The findings emphasised the need for government and relevant authorities to carry out occupational safety awareness among workers in the non-formal sector of the society.

scholarly journals Analysis of Traffic Noise in Taman Kota Lumintang Denpasar

2019 ◽  
Vol 10 (02) ◽  
pp. 20585-20591
Author(s):  
Adrian Pradana ◽  
I Made Tamba ◽  
I Ketut Widnyana
Keyword(s):  
Noise Level ◽  
Open Space ◽  
Direct Method ◽  
Traffic Noise ◽  
Ground Level ◽  
Quality Standard ◽  
Sound Level ◽  
The Road ◽  
Level Meter ◽  
City Park

This research was conducted to analyze the level of traffic noise in Lumintang City Park, Denpasar. The measurement method is by using a direct method that is using an integrating sound level meter that has an LTMS measurement facility, namely Leq with a measuring time every 5 seconds. The examination is carried out by measuring for 10 minutes. The measurement time is carried out during the 24 hour activity (NGO) on December 3, 2018. The measurement distance ranges from 5-10 meters from the road, with a height of 1-1.2 m from the ground level. The results of the research on the level of traffic noise in Lumintang City Park Denpasar showed the noise level that exceeded the noise level quality standards of the green open space area of 50 dB, where in the first lane the traffic noise level was 92.52 dB at L3. While the noise research in lane 2 shows that the highest traffic noise level of 85.70 dB occurs at L5. For day and night (NGO) noise levels in lane 1 amounting to 70.13 dB and lane 2 of 67.95 dB has exceeded the quality standard of green open space, so that it can cause physical and psychological disturbances for visitors to the Taman Lumintang City of Denpasar..

scholarly journals Studies of noise level during the railway crossing – initial research

2019 ◽  
Vol 20 (1-2) ◽  
pp. 327-330
Author(s):  
Konrad Waluś ◽  
Jakub Polasik
Keyword(s):  
Environmental Factors ◽  
Noise Level ◽  
Sound Level ◽  
The Road ◽  
Railway Tracks ◽  
Railway Crossing ◽  
Initial Research

Communication noise is one of the most onerous environmental factors. The development of the motorway network causes the increase of its emission due to the increased traffic of vehicles. The article presents the results of measurements of the level of sound emitted by a car vehicle railway crossing. The tests were carried out at the intersection of a road with two railway tracks located in Bolechowo. The sound level was measured by Brüel and Kjaer 2250 set on a tripod at a height of 1.6 m and a distance of 1 meter from the road reflecting noise reception by an adult person.

scholarly journals A Study on Occupational Hazards Among Traffic Personnel in Guwahati City, India

2019 ◽  
Vol 4 (2) ◽  
pp. 36-43
Author(s):  
Lalit Saikia . ◽  
Rituparna Barman .
Keyword(s):  
Occupational Health ◽  
Noise Level ◽  
Secondary Data ◽  
Noise Pollution ◽  
Sound Level ◽  
City Government ◽  
Vehicular Pollution ◽  
Respiratory Problems ◽  
Traffic Police ◽  
Guwahati City

The study focuses occupational health hazards among traffic police in Guwahati, the fastest growing city inNorth East India. 45 traffic police from 15 traffic points were met with a questionnaire at their convenient time. Noise level was measured with the help of a sound level meter during busy hours on working days in January and February’2017. 50 common men were also asked about problems from noise and air pollution. Secondary data related to level of air pollutants (PM10, SO2 and NO2) in 6 stations were collected from Pollution Control Board, Assam. Selected traffic people were found to be disturbed by respiratory problems, regular body pain, asthma and headache. Dust was found to be the common disturbing factor whereas noise was the most irritating factor in starting and end of school/office timings. Noise level in all traffic points were above desirable limit prescribed for commercial area, i.e., 65dB. Noise levels in a few traffic points recorded more than 80dB. Traffic jam and irritating horn of vehicles are big factors of noise pollution in Guwahati. Average level of PM10, SO2 and NO2 were 85 µg/m3, 7 µg/m3 and 15 µg/m3 respectively. Increasing number of private vehicles along with increasing population is the main cause of increasing vehicular pollution in Guwahati city. Government initiatives for better health and service in terms of monitoring of vehicles at regular intervals for noise and different pollutants, construction of toilets and suitable shelter places, provision of appropriate aid/ mask will be helpful for health and service of traffic people. Workshops/ programs and regular health check-ups for traffic personnel can bring positive change to occupational health.

scholarly journals Assessment of Noise Levels of Equipment Used in the Practical Dental Teaching Activities

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Meriem Amine ◽  
Zineb Aljalil ◽  
Asmaa Redwane ◽  
Ikram Delfag ◽  
Imane Lahby ◽  
...  
Keyword(s):  
Noise Level ◽  
Cross Sectional Study ◽  
Sound Level ◽  
International Standards ◽  
Teaching Staff ◽  
Cross Sectional ◽  
Average Value ◽  
Fixed Prosthodontics ◽  
Practical Session ◽  
Level Meter

Introduction. Practical activities in dentistry are characterized by a high noise level that can have adverse effects on the hearing health of professors, students, and teaching staff. The objective of our study was to make an assessment of the noise level during the practical fixed prosthodontics activities in the Faculty of Dentistry of Casablanca. Materials and Methods. We conducted a descriptive cross-sectional study to measure the noise level in the practical room of fixed prosthodontics. The measurements were obtained during 4 sessions over a duration of 2 hours and 30 minutes, each with the use of a SdB + sound level meter at 4 different locations. Results. The results showed the following: an average value of 69.35 dB (A) for the first practical session (south), an average value of 71.07 dB (A) for the 2nd practical session (east), an average value of 70.36 dB (A) for the 3rd practical session (west), and an average value of 72.06 dB (A) for the 4th practical session (center of the room). Discussion and Conclusion. The results obtained are similar to the results found in previous studies in other countries. These results are below the thresholds of the legislation and international standards. However, we have recorded punctual peaks that exceed the recommended level, requiring the introduction of the means of prevention and the measures of safety against the noise as well at the level of the practical activity classroom and the realization of more in-depth studies concerning the evaluation of the daily exposure of the professors, students, and teaching staff to noise.

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