scholarly journals Studies on temporal variation of sound level on long time scale in Burdwan town � A Case Study from West Bengal, India.

2016 ◽  
Vol 2 (1) ◽  
pp. 04
Author(s):  
Arnab Banerjee ◽  
Buddhadev Mukhopadhyay
Keyword(s):  
Urban Areas ◽  
Noise Pollution ◽  
Sound Level ◽  
The People ◽  
Long Time ◽  
Noise Data ◽  
Precautionary Measures ◽  
Level Meter

Noise pollution is recognized as one of the major fear that affects the quality of life in urban areas across the globe. Burdwan, a district headquarter (100 km away from Kolkata) is one such town where noise pollution is very frequent. For assessing the noise pollution trend on long term scale noise data were collected from various places of the town by sound level meter with a duration of 30minutes/location during specified time like 6.00am, 10.00am, 1.00pm, 4.00pm and 6.00pm during 2002, 2008 and 2014. From the tabulated data of successive three years it was found that sound level lies within the range of 64-85dB or above in different time at different places. Statistically noise level in all these zones differ significantly at their peak hours. Results from the respective three years reveal that the regular increment in the sound pressure levels. This study may help to disseminate awareness about noise pollution among the people, by which they will be able to take required precautionary measures to save themselves from the adverse effects of noise pollution and to improve the quality of the environment.

scholarly journals Noise Pollution in Urban Residential Environments: Evidence from Students’ Hostels in Awka, Nigeria

2021 ◽  
Vol 12 (1) ◽  
pp. 51-62
Author(s):  
Nicholas OBI ◽  
◽  
Joy Sylvia OBI ◽  
Eziyi IBEM ◽  
Dickson NWALUSI ◽  
...  
Keyword(s):  
Urban Areas ◽  
Residential Buildings ◽  
Noise Pollution ◽  
Sound Level ◽  
Noise Levels ◽  
Noise Sources ◽  
Chi Square ◽  
Sound Barriers ◽  
Level Meter ◽  
Area Data

Noise pollution and its concomitant effects on humans and environment has reached dangerous levels in many urban areas across the world. However, very little is known about the sources and effects of noise pollution within students’ hostels in a developing country like Nigeria. This study investigated urban noise pollution in residential neighbourhoods, using the Nnamdi Azikiwe University students’ off-campus accommodation in Awka, southeast Nigeria as the study area. Data were obtained through measurements of noise levels using sound level meter and by conducting a survey to gather feedback from 260 students in the study area. Descriptive statistics and Chi-Square tests were used to analyse the data; the results revealed mean noise levels of 89.8 dB(A) and 46.9 dB(A) during noisy and quiet periods, respectively. The main sources of noise were portable electricity generators, vehicular traffic and loudspeakers used by students and business operators; they were found to have deleterious effects such as low tolerance, headache, anger, lack of concentration and low productivity on the students. The study concludes by noting that to effectively minimize the effects of noise pollution within urban residential neighbourhoods in the study area and beyond, architects and urban planners should engage in proper land use zoning and the application of sound absorbing materials on walls and locating balconies of residential buildings away from noise sources. In addition, vegetation belts and sound barriers of earth mounds or wood, metal or concrete could also be constructed between the sources of noise and residential buildings, especially in the case of roadside communities.

scholarly journals QUIETE: a scheme for a new index of the environmental quality of green areas

Noise Mapping ◽  
2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Giovanni Brambilla ◽  
Veronica Gallo
Keyword(s):  
Urban Areas ◽  
Rating Scale ◽  
Noise Pollution ◽  
Holistic Approach ◽  
Sound Level ◽  
Reference Level ◽  
Noise Mitigation ◽  
Public Park ◽  
Green Areas

AbstractNotwithstanding the green areas are important for preserving and promoting the health of population, they are often exposed to noise pollution, especially in urban areas. However, the perceived quality of a green area does not depend only by its sonic environment, as all the human senses contribute to form the individual appraisal together with other features of the area. Thus, an holistic approach is required as that offered by the soundscape approach. The present paper proposes the scheme of a new index, QUIETE, to quantify the quality of a public park, taking into account its perceived overall quality and the relative sound level determined by the difference between the noise descriptor LA (i.e. LAeq, LA50, . . .) and a reference level Lref . By the QUIETE index it is easy to identify the areas requiring noise mitigation actions, and provide understandable information to the users of the park on the areas for their enjoyable fruition. The formulation of the QUIETE index is rather flexible and the reference level Lref has to be fixed considering the objective to accomplish. To evaluate the feasibility and potential of QUIETE, it has been applied to the data collected in 8 urban parks in Milan and Rome with different location (from downtown to suburban area) and size. The Lref value has been set at the noise limit issued by current Italian legislation for green areas (LAeq = 50 dBA for day-time). A “tentative” rating scale for QUIETE is also proposed and its values are reported by a colored scale on the map of the park to summarize the data and to pr

scholarly journals Quality of Life: The Contribution of a Football Viewing Center to Noise Pollution in an Urban City

2018 ◽  
Author(s):  
Francis Olawale Abulude ◽  
Samuel Dare Fagbayide ◽  
Akinyinka Akinnusotu
Keyword(s):  
Hearing Aids ◽  
Noise Pollution ◽  
Sound Level ◽  
Health Issues ◽  
Noise Levels ◽  
Urban City ◽  
Level Meter ◽  
Made In China ◽  
English Premier League

Noise pollution is an environmental problem due to its effect on hearing and other related health issues. The elevated noise levels above standard limits cause hearing loss and other attendant problems. In Nigeria, viewing centers where football matches are watched via satellite are known as ‘Mini Stadium’.  In this study, the noise pollution of a viewing center was assessed. To do this, five top teams each from the English Premier League (EPL), La Liga, Bundesliga, League 1, and Serie A were selected for the assessment. A sound level meter (GB: 2266204, made in China) was used for the monitoring. The range of noise levels in dBA showed as follow: EPL (56-108); La Liga (46-106); Bundesliga (54-102); Serie A (49-101); and Ligue 1 (54-101). The results when compared with the standard limits, it was observed that part of the results exceeded the limits, this means that the viewers and others within the viewing center may be prone to the hearing problem. It is recommended that acoustic insulators and hearing aids should be used to reduce the attendant problems associated with noise.

PEMBENAHAN TERHADAP LEMBAGA PEMASYARAKATAN DAPAT MENIADAKAN OPSI HUKUMAN MATI BAGI NARAPIDANA DI INDONESIA (THE IMPROVEMENT OF QUALITY OF PENITENTIARY CAN ELIMINATE THE DEATH PENALTY OPTIONS OF CONVICTED CRIMINALS IN INDONESIA)

2020 ◽  
Vol 10 (2) ◽  
pp. 175
Author(s):  
Nomensen Freddy Siahaan
Keyword(s):  
Death Penalty ◽  
Deterrent Effect ◽  
Criminal Cases ◽  
Psychological Burden ◽  
The Real ◽  
The Public ◽  
Good Citizen ◽  
The People ◽  
Long Time

After a long time was not heard to the public area, lately death penalty toward the criminal cases that classified as extraordinary crime are appear. The author discovers electronic article about the execution of the death penalty which is the prosecutor prepares to execute death penalty toward the drugs dealer. The president of Republic of Indonesia stated that it is necessary to give a deterrent effect to the convicted  criminal and keep the morality of Indonesian teenagers. According to my opinion, the author argues that it will be better and wiser if we discuss about renovating all of the Penitentiary in Indonesia than debating whether death penalty could be done in Indonesia or not, because it will be displeasure many parties, death penalty infringed the human rights of the convicted criminals and cause psychological burden to them, families, the executor of the death penalty, and other parties. Because if we have to improve the quality of the Penitentiary, if the function of Penitentiary for fostering moralily has been optimal or properly enough to the convicted criminals, Indonesia will be no longer need the death penalty option as sanction to the convicted crimanals including for the extraordinary crime (especially for drugs trafficking in our country). Penitentiary is one of the public services which aims for fostering the people that initially have bad habits (commited to the crime), so that they will have the awareness to change their bad attitude into the be better ones, will not harm others, and positively contributed to the society. Already Penitentiary’s conditions should be designed in such a way and as good as possible, so that the inmates feels like at their own home (like having a second home after his own home), and feel humaner to spend their days in the Penitentiary. The author believes that if the Penitentiary has been improved and optimized its function well, then the real purpose of Penitentiary will definitely achieved. As stated in Law Number 12 Year 1995 regarding to Penitentiary Article 2 which states "sanction system are organized in order to fostering the convicted criminals in order to be the real man, aware of their fault, improve themselves, and not to repeat the criminal act so that they can be friendly received by the community, can actively participated in the development of our country, and can socialize themselves as good citizen."Article 3 on this regulation also intensifies the function of Penitentiary "the function of Penitentiary is to prepare convicted criminals to be able to properly integrated to the society, so they can be accepted again as members of the public who are free and responsible ones." 

scholarly journals A Study of UVER in Santiago, Chile Based on Long-Term In Situ Measurements (Five Years) and Empirical Modelling

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 368
Author(s):  
Lisdelys González-Rodríguez ◽  
Amauri Pereira de Oliveira ◽  
Lien Rodríguez-López ◽  
Jorge Rosas ◽  
David Contreras ◽  
...  
Keyword(s):  
Urban Areas ◽  
Solar Spectrum ◽  
Sun Exposure ◽  
Great Accuracy ◽  
In Situ Measurements ◽  
Uv Index ◽  
Empirical Modelling ◽  
The People

Ultraviolet radiation is a highly energetic component of the solar spectrum that needs to be monitored because is harmful to life on Earth, especially in areas where the ozone layer has been depleted, like Chile. This work is the first to address the long-term (five-year) behaviour of ultraviolet erythemal radiation (UVER) in Santiago, Chile (33.5° S, 70.7° W, 500 m) using in situ measurements and empirical modelling. Observations indicate that to alert the people on the risks of UVER overexposure, it is necessary to use, in addition to the currently available UV index (UVI), three more erythema indices: standard erythemal doses (SEDs), minimum erythemal doses (MEDs), and sun exposure time (tery). The combination of UVI, SEDs, MEDs, and tery shows that in Santiago, individuals with skin types III and IV are exposed to harmfully high UVER doses for 46% of the time that UVI indicates is safe. Empirical models predicted hourly and daily values UVER in Santiago with great accuracy and can be applied to other Chilean urban areas with similar climate. This research inspires future advances in reconstructing large datasets to analyse the UVER in Central Chile, its trends, and its changes.

Testing of Sonic-Absorbent Panels’ Behavior in Open-Air Environment

2012 ◽  
Author(s):  
Petru A. Pop ◽  
Patricia A. Ungur ◽  
Liviu Lazar ◽  
Mircea Gordan ◽  
Florin M. Marcu
Keyword(s):  
High Frequency ◽  
Noise Pollution ◽  
Sound Level ◽  
Sound Level Meter ◽  
Data Logger ◽  
Public Buildings ◽  
Gypsum Plaster ◽  
Level Meter ◽  
And Control

One wildly used method to reduce and control the noise pollution in green city’s buildings is using sonic-absorbent panels. Their applications can be multiple, such as the insulation of buildings, acoustic barriers and fences along the highway or in front of supermarkets, hospitals and other public buildings. This paper presents a method for testing the behavior of sonic-absorbent panels in open-air environment. The work represents a carrying on of previous research about absorbent materials from gypsum family, tested in lab conditions. The experiment setup used a dynamic installation and as a sample a stand formed by six sonic-absorbent panels from special modeling alpha-gypsum plaster. This installation has been composed of two loudspeakers for emitting the sound at a well-defined frequency by the first laptop, the microphone for detecting and transmitting the signal to the second laptop for analyzing and processing the data. All operations were performed using MATLAB Programs, while a Data Logger Sound Level Meter type CENTER 332 was put on near the microphone to compare both results. The first experiment of acoustic stand has been realized by setting up the installation at a frequency from 50 Hz to 1250 Hz and altering the distance between loudspeakers and stand at 0.5m to 1m and 1.5m, respectively. The second experiment kept the same test’s conditions, while two and three layers of sonic-absorbent panels formed the stand, respectively, but at same distance from source of 0.5 m. In both tests, the results underlined the good sonic-absorbent properties of these panels, especially at medium and high frequency, which can recommend using the panels for multiple outside applications.

Approaches to Urban Noise Management in India

2012 ◽  
Author(s):  
Neelima S. Naik
Keyword(s):  
Urban Areas ◽  
Central Government ◽  
Environmental Concern ◽  
Noise Pollution ◽  
Noise Levels ◽  
Urban Noise ◽  
Master Plans ◽  
The Past ◽  
Metropolitan Cities

Noise pollution in urban areas is recognized as a major environmental concern in India. The lack of infrastructure and fast paced life in major metropolitan cities of India has made the urban environment extremely crowded, busy as well as noisy and as a result the millions of people living in the major metropolitan areas are suffering from the impacts of noise pollution. Noise levels are escalating at such a rate that it has become a major threat to the quality of human lives. Direct links between noise and health have been established by research conducted over the past few decades. There are several causes for urban degradation such as population migration, environmental considerations not adequately being incorporated into master plans, uncoordinated and haphazard development, weak implementation of plans and laws and inadequate institutional competences and resource crunch. This paper discusses the causal factors, impacts and the different approaches adopted by the Central Government as well as some major State Pollution Control Boards to curb the urban noise problem and the need for looking into non-conventional solutions such as Ecocity programme to bring in visible environmental improvement.

scholarly journals Water Woes in Zimbabwe’s Urban Areas in the Middist Of Plenty: 2000 -Present

2012 ◽  
Vol 1 (2) ◽  
pp. 151 ◽  
Author(s):  
Enock C. Makwara
Keyword(s):  
Waste Management ◽  
Water Supply ◽  
Urban Area ◽  
Urban Areas ◽  
Service Failure ◽  
Urban Residents ◽  
Contaminated Water ◽  
Recent Outbreak

Zimbabwe’s urban areas are choking under the weight of over-crowdedness amidstdilapidated infrastructure that is characterised by constant service failure. The water andsewer systems of the country’s major urban centres are on the verge of collapse, thusputting millions of people in danger of consuming contaminated water, including thatfrom underground sources. Waste management and water supply problems manifestthemselves as challenges bedevilling many an urban area in the country. The quality andquantity of water supplied in Zimbabwe’s urban centres has plummeted in recent yearsand has assumed crisis proportions owing to the difficult economic situation and otherchallenges faced by the country. The situation is desperate and dire, as is evidenced by thepoor quality of delivered water, severe water rationing and the outbreak of water-bornediseases in the urban areas dotted across the country. The situation demands and dictatesthat solutions be proffered as a matter of urgency.The recent outbreak of epidemics hasbeen blamed on lack of access to safe water and poor sanitation, two crucial factors incontrolling the spread of diseases. An overly bureaucratic environment, where decisionsand processes take longer, makes life complicated for poor urban residents. Such ascenario motivated the researchers to examine the problem with a view to suggest waysand means of intervening to mitigate and resolve the problem. It emerged from thefindings that the problem is multifaceted in nature, hence a whole range of measures needto be adopted if a long-term solution is to be provided.

scholarly journals Impacts of vehicle tire on slip resistance and sound pollution in asphalt pavements

2021 ◽  
Vol 2 (3) ◽  
pp. 16-21
Author(s):  
Saeed Abbassi
Keyword(s):  
Urban Areas ◽  
Noise Pollution ◽  
Sound Level ◽  
Asphalt Pavements ◽  
Fine Grained ◽  
Sensitive Areas ◽  
Slip Resistance ◽  
Materials Used ◽  
The Cost ◽  
Pavement Friction

Noise pollution caused by vehicle traffic is one of the major problems in urban areas with road expansion. Due to the increase in the cost of construction and installation of sound walls to deal with noise pollution, to deal with this problem should look for methods that do not have additional costs and operating costs. Improving the pavement texture is one of the most effective ways to reduce tire noise and pavement and reduce the asphalt surface’s sound. To evaluate the slip resistance of asphalt, the English pendulum test according to ASTM E303-74 standard was performed on wet parts of asphalt in wet conditions. This device is used to examine the fine texture of the pavement. The number of pavement friction with a negative coefficient of 0.1469 has an inverse ratio with the intensity of sound level increases the number of pavement friction aligned with the amount of sound level created decreases. On the other hand, the depth of pavement texture, which is determined as the size of pavement materials, with a coefficient of 0.2810, has a direct ratio with the amount of noise pollution, and the smaller the number of fine-grained materials used will increase the sound level. According to the results of the coefficients estimated from the equation, it can be concluded that the preparation of pavements with an amount of friction can reduce the amount of noise pollution emitted by the movement of vehicles, especially in urban areas and sensitive areas. Therefore, it is recommended that in acoustically sensitive areas, in preparing pavements, arrangements be made to use coarser materials and maintain proper pavement resistance. For this purpose, in this article, the pavement’s texture is examined in the amount of noise created due to the tire’s interaction and the pavement.

scholarly journals SOCIAL ECONOMY INDICATOR ON CONSTRUCTING FOREST SUSTAINABILITY IN BALI

2020 ◽  
pp. 17-26
Author(s):  
P. K.A. Sanjaya ◽  
I. P. Nuratama ◽  
G. I.S. Diputra
Keyword(s):  
Environmental Sustainability ◽  
Social Economy ◽  
Partial Adjustment ◽  
Forest Sustainability ◽  
The People ◽  
Partial Adjustment Model ◽  
Long Time ◽  
Economical Growth ◽  
United Nation

Forestry issue has ever been discussed in conference of United Nation Framework Convention on Climate Change about deforestation that happens because industrialization that oriented toward economical growth and ignores environment aspect that can cause global warming. In Bali, sustainability has been a pplied since long time ago. It can be proved by the existence of tumpek wariga that makes an appreciation respect directly to the plants is an embodiment of environmental sustainability as a manifestation of local wisdom. This is insufficient remember the fact that the condition of Bali's forests has been distorted. This analysis aims to know the simultaneous and partial influences and the most dominant determinants affecting forest sustainability. Within the lifetime data and analysis of adaptive partial adjustment model double log, this analysis found the fact that simultanousely and partially Domestic Product Regional Bruto, the amount of citizen, regional autonomy policy and forest sustainability condition on previous year has significant influence toward forest sustainability during the period of this analysis. The amount of citizen variable is the most dominant variable toward forest sustainability because it obtains the highest standardized of coefficient data of 0,292. Based on the analysis, result and discussion, forest have to be well maintained, conserved and utilized in balance for all the people prosperity in current generation and for the sake of next generation. Correct management needed for development sustainability especially in long-term capacity through internalization and negative externalization which caused by economical development 

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