scholarly journals A Comparative Study on Noise Pollution Levels In Dhanmondi Area, Dhaka: A Geospatial Analysis

2021 ◽  
Vol 47 (2) ◽  
pp. 99-108
Author(s):  
Mahmuda Parvin
Keyword(s):  
Comparative Study ◽  
Noise Level ◽  
Noise Pollution ◽  
Geostatistical Analysis ◽  
Pollution Levels ◽  
Sound Levels ◽  
Level Data ◽  
The Comparative Study ◽  
Area Data

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

scholarly journals Effects of COVID-19 pandemic on festival celebrations and noise pollution levels

Noise Mapping ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 89-93
Author(s):  
Komal Kalawapudi ◽  
Taruna Singh ◽  
Ritesh Vijay ◽  
Nitin Goyal ◽  
Rakesh Kumar
Keyword(s):  
Noise Level ◽  
Noise Pollution ◽  
Pollution Level ◽  
Noise Levels ◽  
Indian Culture ◽  
Pollution Levels ◽  
Level Data ◽  
New Guidelines ◽  
The City ◽  
Mumbai City

Abstract India is a country where every religion and community celebrates their culture. Festivals have an important role in Indian culture and are celebrated whole-heartedly by the citizens. Most of these celebrations culminate to causing pollution especially noise pollution due to festivities and rituals. One such festival is Ganesh Chaturthi or Ganeshotsav which is magnificently celebrated in Maharashtra state of India. In the present study, noise pollution levels during Ganeshotsav at famous community pandals in Mumbai city were monitored in the year 2020. Noise level data was analyzed based on indices such as L 10, L 50, L 90, noise pollution level (LNP ) and noise climate (NC). Comparison of noise levels was carried out for the collected data during Ganesh Chaturthi in the previous years of 2018 and 2019. The city witnessed simple festival celebration in eco-friendly manner leading to significant decrease in noise levels due to CoVID-19 pandemic. The pandemic situation is an eye-opener for the city administration with demonstration in reduction of noise pollution. Many aspects of the pandemic can be carried forward in making new guidelines and policies to curtail pollution and eco-friendly celebration of festivals.

scholarly journals Winning, Losing, and the Quality of Democracy

2021 ◽  
pp. 003232172110261
Author(s):  
Richard Nadeau ◽  
Jean-François Daoust ◽  
Ruth Dassonneville
Keyword(s):  
Comparative Study ◽  
Electoral Systems ◽  
Motivated Reasoning ◽  
Quality Of Democracy ◽  
Electoral Democracy ◽  
Democratic Systems ◽  
The Comparative Study

Citizens who voted for a party that won the election are more satisfied with democracy than those who did not. This winner–loser gap has recently been found to vary with the quality of electoral democracy: the higher the quality of democracy, the smaller the gap. However, we do not know what drives this relationship. Is it driven by losers, winners, or both? And Why? Linking our work to the literature on motivated reasoning and macro salience and benefiting from the Comparative Study of Electoral Systems project—covering 163 elections in 51 countries between 1996 and 2018, our results show that the narrower winner–loser gap in well-established electoral democracies is not only a result of losers being more satisfied with democracy, but also of winners being less satisfied with their victory. Our findings carry important implications since a narrow winner–loser gap appears as a key feature of healthy democratic systems.

scholarly journals A Comparative Study between Pre-construction and Construction Phases of Champhai-Zokhawthar Road Construction, Mizoram: Air Quality and Noise Quality Assessments

2019 ◽  
Vol 7 (1) ◽  
pp. 47-53
Author(s):  
Lalven tluanga ◽  
◽  
H. Lalramnghinglova
Keyword(s):  
Economic Growth ◽  
Particulate Matter ◽  
Air Quality ◽  
Comparative Study ◽  
Noise Level ◽  
Road Construction ◽  
Suspended Particulate ◽  
The Mean ◽  
Negative Impacts

In recent years, Mizoram has made immense progress in various sectors and initiated developmental programmes for its economic growth. An important contributing factor to this development and growth is the transport connectivity projects. Although connectivity projects can boost economic growth, its negative effects cannot be neglected. In view of this, the present research studies the impacts of Champhai – Zokhawthar road construction on the air quality and noise quality of the region. This comparative study of the impact on the quality of air and noise pollution in the pre-construction phase and construction phase provide a clear-cut example of the negative impacts caused by road construction and provide a fresh outlook for formulation of improved management plans. Air quality assessment was carried out using High Volume Air Sampler and the following parameters were monitored – suspended particulate matter (SPM), respirable suspended particulate matter (RSPM), nitrogen dioxide (NO2) and sulphur dioxide (SO2). The results indicate that mean SPM concentration was increased by 22.82 µg/m3; RSPM concentration by 14.67 µg/m3; NO2 concentration by 4.08 µg/m3; and SO2 concentration was increased by 0.06 µg/m3 from the pre-construction phase to construction phase. Noise quality assessment was carried out at three sites – Zotlang, Melbuk and Zokhawthar by using Lutron SL-4001 Sound Level Meter and Leq, Lmax and Lmin were recorded and calculated. The mean noise level at Zotlang wasincreased by 8.72 dB (A) and at Melbuk the mean noise level was increased by 9.35 dB (A). However, at Zokhawthar, there was a decrease in mean noise level by 0.13 dB (A). From the present study, it is evident that road construction poses a threat to the air quality and noise quality of the study area and improved measuresneed to betaken to curb its negative impacts

An Experimental Study of the Noise Due to Traffic in a Congested Urban Area

2016 ◽  
Vol 15 (01) ◽  
pp. 1650010
Author(s):  
M. Sangeetha ◽  
P. Sankar
Keyword(s):  
Urban Area ◽  
Noise Level ◽  
Urban Areas ◽  
Noise Pollution ◽  
Simulation Software ◽  
Network Simulator ◽  
Level Data ◽  
Drastic Increase ◽  
Wireless Medium ◽  
Noise Data

Noise pollution in an urban environment is an issue of serious concern in the major cities of India. There are various factors that contribute to the increase of noise levels in urban areas. The intensity of traffic is one of the factors which contributes to a drastic increase in environmental noise. The management of noise pollution has to be considered in the decision making process. In this paper, an attempt is made to study the existing noise level due to the traffic in Velachery which is declared as a sensitive area by the Ministry of Environment and Forestry (MoEF). The noise level data is collected using the MS6710 digital sound meter. The Custic simulation software version 3.2 is used for finding the propagation of noise. The spatial patterns of measurement were also calculated, in the sub-urban area of Velachery, Chennai, Tamilnadu, India. A means of transmitting this data to vehicles moving in the area, through a wireless medium is simulated using NCTUns 6.0 (network simulator), to enable drivers to understand the environmental conditions. A hardware was also designed which can be used to transmit and receive the noise data using the Zigbee module. A noise transmitting station is placed at a junction, so that it can transmit this noise data to the receivers which are fitted inside the vehicles.

scholarly journals Assessment of Noise Pollution at Different Bus Stations in Lucknow City of Uttar Pradesh, India

2021 ◽  
Vol 9 (VII) ◽  
pp. 2387-2393
Author(s):  
Bhavesh Kumar Singh
Keyword(s):  
Noise Level ◽  
Hot Spot ◽  
Sensory System ◽  
Uttar Pradesh ◽  
Noise Pollution ◽  
Data Interpretation ◽  
Bus Station ◽  
High Level ◽  
Excessive Noise

Noise is word related to undesire sound which disrupts quality of life .when the noise present in ambience exceeds the prescribed limits is called as noise .Excessive noise disrupts day to day activity such as sleep, conversation. It is a type of pollutant which was earlier neglected but as the growth and development took place, excessive noise started to disturb human activity .this lead to identification, quantification and regulation of noise by WHO .the paper present the noise pollution data interpretation of two bus stations of Lucknow city in the month of February 2021. Exposure to elevated level of noise may cause serious weight on the sound-related and sensory system This study deals with assessment of noise pollution at bus station of Lucknow. The noise level was monitored at Charbagh, Awadh and Nahariya for two day each with help of sound pressure level (SPL 1352). Since these three bus stations are inter as well as intra state bus station as they connect the Lucknow with various neighbouring districts so noise level generated here is quite high. Maximum numbers of buses are being operated from these three bus stations to cater the demand of people. With help of noise level various noise parameters were calculated such as L10, L90, L50, Leq, NC, LNP and TNI. for the purpose of proper study and representation of noise present at bus station. Leq value at Charbagh ranges from 73.5-82.3dB and for Awadh it ranges from74.6-82.7dB and for Nahariya it ranges from 77.8-84.4dB .It is observed that all the selected locations, the level of noise was found to be above prescribed noise standard level of CPCB. Such as high level of noise at bus station cause mental discomfort to passengers that needs to be taken care of while designing the bus terminal and proper attention must be paid to reduce to reduce mental agony to passengers as the number of buses are increasing so the noise level. Since Lucknow is still under the process of development thus it becomes to identify locations of noise hot spot and place suitable solutions and strategies to control the menace of noise pollution.

scholarly journals An Assessment of Noise Levels in Sylhet City Corporation, Bangladesh

2019 ◽  
pp. 1-11
Author(s):  
Md. Sultan Mahmud ◽  
Rony Basak
Keyword(s):  
Land Use ◽  
Noise Level ◽  
Urban Areas ◽  
Noise Pollution ◽  
World Health ◽  
Noise Levels ◽  
Pollution Levels ◽  
Land Use Types ◽  
Health Organization ◽  
The City

Noise pollution is a silent villain as it’s quite easy for being ignored by us. Urban areas are more exposed to this deadly agenda as the density of population and their belongings are excessive in there. This study differentiated noise levels of Sylhet City Corporation, a growing city of Bangladesh into different types according to the land use purpose of the city like residential, silent etc. One hundred and sixty-eight noise level readings, taken at 14 different positions during the morning, afternoon, evening, and night of selective weekdays which are categorized as busy days, typical days and weekends were utilized for this research. Results put the average noise level readings in the city centers at between 45 dB(A) and 95 dB (A), dissented from the permissible limits of the World Health Organization (WHO) as well as national standardization organization: Department of Environment (DOE) in all the land use types, with the highest noise pollution levels recorded for transportation, commercial and silent typed areas. The result of the one-way ANOVA test completed where the dependent variable was noise and the independent variable was land use types uncovers a factually huge mean noise levels over the study area (F (4,115) = 9.52, p = 1.1079). Tukey’s HSD method also carried away which showed the uneven difference of noise levels between the land types. The study represents noise pollution auditing, and the immediate needs to control urban noise pollution with convenient and effective policies some of which is recommended at the end of the study.

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