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:: Volume 5, Issue 4 ( Autumn 2018) ::
Environ. health eng. manag. 2018, 5(4): 211-220 Back to browse issues page
Risk assessment of noise pollution by analyzing the level of sound loudness resulting from central traffic in Shiraz
Hadi Negahdari , Sirus Javadpour , Faramarz Moattar, Hashem Negahdari
Corresponding Author:Material Science and Engineering Department, School of Engineering, Shiraz University, Shiraz, Iran , Javadpor@shirazu.ac.ir
Abstract:   (4047 Views)
Background: Today, the effects of environmental pollution on human life and human needs, which reduces the level of community health caused by traffic noise in large cities, are clearly visible by creating irritation and pathogenic conditions. The aim of this study was to assess the risk of noise pollution
resulted from central traffic in Shiraz by analyzing its indicators and related components.
Methods: By specifying the high traffic jam in Shiraz, the sound and its frequency in 156 points of the city were analyzed using a sound analyzer (Tes-1358C model). The sound pressure levels (LA and LP) and the one and one-third octave band were continuously measured in A and C networks. Then, data were extracted and analyzed using Excel 2016 and Minitab 18.1. Eventually, phon and sone indexes were calculated for the heavy traffic jam in some of the central streets of Shiraz and the results were statistically calculated and their charts were prepared with comfort disturbance ranges.
Results: The highest harmful frequency of traffic in Shiraz was 50 Hz and 83.3 dB. The sound pressure level ranged from 70 to 92.7 dB in network A and 87.8 dB in network C. The maximum sound level was 87 phon and the maximum sone was 26 at 14 stations.
Conclusion: According to the results, the sound pressure levels exceeded the environmental standards of Iran and the values of phon and sone were higher than the standard of comfort at night and day.
Keywords: Noise pollution, Environmental pollution, Loudness perception, Health risk assessment, Shiraz
eprint link: http://eprints.kmu.ac.ir/id/eprint/29806
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Type of Study: Original Article | Subject: Special
Received: 2018/12/15 | Accepted: 2018/12/15 | Published: 2018/12/15
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Negahdari H, Javadpour S, Moattar F, Negahdari H. Risk assessment of noise pollution by analyzing the level of sound loudness resulting from central traffic in Shiraz. Environ. health eng. manag.. 2018; 5 (4) :211-220
URL: http://ehemj.com/article-1-389-en.html

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Volume 5, Issue 4 ( Autumn 2018) Back to browse issues page
مجله مدیریت و مهندسی بهداشت محیط Environmental Health Engineering And Management Journal
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