CWE / 1818/2021 当前世界环境 0125 - 888 0125 - 895 Enviro研究出版社 cwe - 79 - 77 - 000 印度拉贾斯坦邦哥打大都市的噪音描述符 1 UD,拉贾斯坦工业大学 土木工程系 哥打 印度 10.12944 / CWE.16.1.18 卷16 问题1 176 - 189 摘要

max、Lmin、L10、L50、L90、NC(噪声气候)、Lnp(噪声污染级)、Leq(等效噪声级)和NEI(噪声暴露指数)。噪声描述符在表明与噪声水平相关的噪声污染的生理和心理影响方面是非常有用的。它要求监管机构在高噪声地区对儿童、老年人等噪声弱势群体采取必要的措施。 Noise levels were recorded with the digital sound level meter " HTC SL-1350". Obtained equivalent noise levels were in between 65 dB(A) to 85 dB(A). The results were then compared with the WHO standards of community noise levels, and Indian noise pollution standards. It is noticed that the noise levels in all monitoring stations were well above the limits of the standards prescribed by the WHO and CPCB. Small variations in noise levels were observed for all sampling locations i.e. noise levels were almost similar at sampling locations. Noise levels were distinct in magnitude for morning and evenings hours. Noise Exposure Index (NEI) was greater than 1 which shows significant high noise levels in all the sampling locations. Kota metropolis desperately needs new strategies to reduces the high noise level in the city. Regulating agencies should take necessary action before things get out of control. Some immediate actions are suggested in the study.

关键字 等效噪声级 噪声环境 噪声描述符 噪声暴露指数 噪声污染水平
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