Measurement and Analysis of Noise Levels in the Sensitive Areas of Mysuru City, India (original) (raw)
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Assessment of noise pollution level in a tertiary care hospital of Imphal, Manipur
International Journal Of Community Medicine And Public Health
Background: Noise pollution is a major public health problem. Previous studies reported the presence of noise pollution in various hospital settings around the world. There are few studies conducted on noise pollution in the north eastern part of India especially in Manipur. Therefore, the study was undertaken to assess noise pollution in a tertiary hospital of Manipur for future suggestive measures to reduce noise and associated health impacts. Methods: An observational study was conducted in a public tertiary care hospital of Imphal, Manipur. Data collection for noise level measurement was done by using a digital sound level meter instrument and mobile sound meter app. The data was analyzed using IBM SPSS for Windows, version 21.0. Armonk, NY. Results: The highest sound level of 87.6 dB(A) was recorded in the general OPD counter. Among the OPDs, Medicine OPD recorded the highest sound level of 85.2 dB(A). Parking areas recorded an average maximum of 80.5 dB(A). Hospital wards reco...
A COMPARATIVE STUDY OF AMBIENT NOISE LEVELS AT COMMERCIAL, RESIDENTIAL AND SILENT ZONE IN GORAKHPUR
Urban areas with rapid modernisations are affected by noise related health issues. This noise pollutions coming from the road traffic noise, rail traffic noise, air traffic noise, industrial noise, community noise and other miscellaneous sources affects humans in our day to day life. Sound Level meter (Make Bruel and Kjaer-2232) was used to make the noise sampling at various locations on the highway of concerned. The main objective is to compare the noise level on the NH-28 and NH-29 with the prescribed limits by Central Pollution Control Board (CPCB) and Bureau of Indian Standards (BIS) and to assert the reason of the noise source agent on the locations. Traffic Noise Index with Noise climate was also calculated to give us a clear idea about the status of Noise in the concerned stations. Residential areas, Commercial areas and Silent Zone were taken into account to carry out our research work. To find out noise levels which people encounter in highways in their daily life, we carried our sampling on the roadside and walked along the places on the National Highways. Golghar (NH-29) has higher values of noise levels at it is the main commercial place in the city of Gorakhpur. The noise level at Army School (NH-28) is higher than that of St.Andrew Inter College (NH-29) which are categorised under silent Zone.
Ambient noise levels in an insustrialized suburb of Chennai, India
International Journal of Engineering, Science and Mathematics, 2017
Year-round survey of ambient noise levels monitored at eight locations in Manali, Chennai, are presented. The study area is distinguished by the presence of a cluster of several industries called the Manali Industrial Complex. The cluster includes a large petroleum refinery and several downstream industries. Densely populated residential and commercial localities, besides sensitive institutions like hospitals and schools co-exist with the industries in the area. The survey reveals that ambient noise levels are higher than the statutory limits for most of the time during the day.
AMBIENT NOISE LEVELS IN AN INDUSTRIALIZED SUBURB OF CHENNAI, INDIA
Year-round survey of ambient noise levels monitored at eight locations in Manali, Chennai, are presented. The study area is distinguished by the presence of a cluster of several industries called the Manali Industrial Complex. The cluster includes a large petroleum refinery and several downstream industries. Densely populated residential and commercial localities, besides sensitive institutions like hospitals and schools co-exist with the industries in the area. The survey reveals that ambient noise levels are higher than the statutory limits for most of the time during the day.
EVALUATION OF NOISE FROM URBAN CORRIDORS: A CASE STUDY OF NASHIK CITY, MAHARASHTRA STATE, INDIA
ABSTRACT : Nashik city is the divisional headquarter of North Maharashtra with 1.4 million populations. Rapid increase in industrialization and uncontrolled migration towards urban center leads to the noise pollution which becomes a critical issue. Noise pollution due to traffic is one of the major problems in large urban centers. In the present study 21 different neighborhoods and certain noise parameters such as leek, Lmax, Lmin, L10, L50, L90 and NPL (Noise Pollution Level) were selected for the evaluation of noise level in different part of Nashik city. The measurement was performed at specified time 8-10a. m., 1-3p. m. and 7-9p.m. for 15 min. The equivalent noise level of all 21 sites crosses the standard permissible limits and ground in the range between 63.0 to 98.6dB (morning), 63.5 to 96.6dB (afternoon) and 64.0 to 103.2dB (evening). The study reveals that, noise levels in different urban corridors of Nashik city, mostly observed high in all sampling sites, which are above mostly above permissible limits. Keywords: Noise level, urban corridors, dB, traffic
Assessment of noise pollution in Raipur city of Chhattisgarh, India
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.
Evaluation of Noise Pollution: A Case Study of Udaipur, Tripura, India
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.
A STUDY OF NOISE IN VARANASI CITY, UTTAR PRADESH (INDIA)
The current study point out that Varanasi city is suffering from very soaring level of noise pollution as compare to standard given by Central Pollution Control Board (CPCB), New Delhi. From this study it was observed that the places which must be quiet are also in the grip of noise. The main causes of high noise level in Varanasi city are traffic, population, and indiscipline among the public because of not following Noise Act along with the rules and regulations made by the government. Due to this purpose present study was made at various locations of silent zone, residential zone and commercial zone with Sound Level Meter to calculate the day and night sound level. Varanasi city is one of the famous city of Uttar Pradesh (U.P), so an effort has been made in the city of Varanasi to calculate noise level at these locations and also remedial measures which must be taken to reduce this noise pollution in the city.
Bangladesh Journal of Environmental Science, 2022
Noise, an unwanted sound, is a phenomenon that has plagued us from the day of our birth. So, a study was conducted during the period of November 2021 to June, 2022 with a view to determine the noise levels in bus stands, silent zones and other busy areas of coastal Bagerhat Sadar upazila and focusing its management. For the study purpose noise level was measured from ten selected sites viz. i) Sadar hospital, ii) Mother and child hospital, iii) Deputy commissioner's office, iv) Passport office, v) Gvt. P.C. college, vi) Khan Jahan Ali degree college, vii) Dashani trafic more, viii) Baherhat bus stand, ix) Daratana bridge and x) Toll plaza,Bagerhat. Noise level was determined during the month of January to April, 2022 staring from 8.00 am and continued upto 8.00pm at two hours interval. Noise level was measured by Advanced Sound Level Meter (SLM). The lower limit of the noise level was 50 dB or higher, while the upper limit exceeded 99d B in January 2022. During February 2022 the highest (99.8 db at 10 am) and lowest (51.0 dB at 8.00 p.m.) noise levels were recorded in Khan Jahan Ali Degree college and Govt. P.C. college, respectively. Though the highest noise level (99.8 dB) in March 2022 was same as February 2022, but the lowest level was lower than February 2022 but not lower than that of 50 dB. In April 2022 the noise level was within 51.0-994 dB, where the highest and lowest noise level was observed from Mother and child hospital at 8.00 p.m. and Toll plaza Bagerhat at 12.00 p.m. Amongst the stations, six locations are silent areas, where the lower noise level was also exceeded 50 dB i.e exceeded national standard. The noise level in a crowded area, i.e. the parking or movement area of vehicles, was almost above 80db in most cases. Although the noise level was within the allowed limit (80-100 db), the concern is that no one applies protective measures (ear plug/ear pad). A growing awareness among the population living/moving in a busy area is therefore necessary to ensure the safety space for the preservation of both the human and the working environment. As a combined approach, parking or the use of hydraulic horn should be taken in a discipline for good human health and avoidance of further disabilities.
Besides growing levels of air and water pollution, road traffic induced noise pollution has been recognized as potential threat to feasible quality of life especially in the urban areas. The accelerated pace of economic development urbanization, and increased vehicular mobility has affected remotest location of India and the Himalayan state of Uttarakhand is no exception to it. The serenity and tranquility for which it’s acknowledged globally, is growingly affected by traffic induced noise pollution caused by inflating Pilgrimage/tourism industry, rampant road constructions, encroachment, traffic mismanagement etc. The peak pilgrimage season brings with it uncontrolled traffic influx in the region. All the major pilgrimage towns located on the national Highway from Rishikesh to Badrinath are affected by the vehicular Noise pollution and traffic congestion especially during the holy pilgrimage season. The study tries to evaluate the Noise pollution problem in one of the important towns of Uttarakhand ‘Srinagar ’located 105 kms upstream from Rishikesh, on NH-58. Heavy movement of traffic and illegitimate usage of horns is considered main cause of noise pollution in the town which grows irrationally during the yatra season. The average number of vehicular flow was observed to be 890 vehicles/day during the yatra season (May) as compared to 575 vehicles/day during the non yatra season(January). The the average noise intensity levels of the town was recorded to be 70dB and noise levels have reached at an alarming stage. It was observed that in 4/5 noise monitoring location, the noise intensity was above the prescribed noisestandard level of Central Pollution Control Board (CPCB), and Bureau of Indian Standard (BIS). The vulnerability to various noise induced health hazards was also very high in the area because the valve of R was 0.78.