文章基本信息

标题：Noise Pollution at Major Schools, Colleges and Hospitals in Small Urban Area: Focusing on Jessore Municipality, Bangladesh
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作者：Sayka Jahan ; Shammi Munni ; Gopal Chandra Ghosh 等
期刊名称：Nature, Environment and Pollution Technology
印刷版ISSN：0972-6268
出版年度：2016
卷号：15
期号：3
语种：English
出版社：Technoscience Publications
摘要：The study reports the level of traffic-induced noise pollution in the major schools, colleges and hospitals ofthe Jessore city of Bangladesh. The noise levels have been measured at 14 locations of the city from 7am to7pm in the working days. The findings also indicated that traffic noise levels depend on distance fromroadside and diurnal variation. Motorized traffic is the main source of noise pollution in this city. The studyfound that the most noise-polluted institution in the city was Mentor International School with measured L eqof 80.37 dB and the least noise polluted institution in the city was Ad-din hospital with measured L eq of 64.09dB. The L 10 levels in all the institutions were higher than 75.62 dB and L 90 level was higher than 58.51 dB andthere is a strong positive correlation between L 10 and L 90 level. Findings also indicate that in all of the institutionsthe TNI level was higher than 96.94 dB and the NC level was higher than 22.2 dB and also there is a strongpositive relationship between TNI and NC. When the NC level increases then the TNI level also increases.It has been observed that at all the locations, the level of noise remains far above the acceptable limit for allthe time.