Assessment occupational noise and control plan presentation in Town Board Stations

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GOLMOHAMMADI ROSTAM; khaefi Nastaran; ALIABADI MOHSEN

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Journal: Journal of Sabzevar University of Medical Sciences Year:2019 | Volume:26 | Issue:3 Page(s): 319-327

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Information Journal Paper

Title

Assessment occupational noise and control plan presentation in Town Board Stations

Author(s)

GOLMOHAMMADI ROSTAM | khaefi Nastaran | ALIABADI MOHSEN | Issue Writer Certificate

Keywords

noise control managementQ1

acoustical analysisQ1

noise exposureQ2

Abstract

Background and objective Town Board Stations (TBS) installations with increment in gas consumption and overloading are one of the sources of noise pollution. The present study was aimed to assess and provide an occupational noise exposure control plan in TBS. Methods Area noise measurement and frequency analysis was performed according to ISO 9612(2009). After the determination of the range of sound pressure level, predominant source of noise was identified. In addition, dosimetry was conducted to determine the personal exposure during a work shift. In the next step, acoustical analysis of TBS of the sample, construction was conducted based on acoustical absorbance properties. Installation of absorbent materials was recommended and the efficiency of the interventions was assessed. Results sound pressure level was in the range of 68. 64 to 95. 30 dB(A) in TBS. The minimum and maximum effective sound absorption of internal surfaces were 3. 61 and 27. 64 Sabine m2, respectively. The average noise exposure dose for maintenance workers was 121%. After installation of absorbent materials on ceiling and walls, the effective sound absorption of the surfaces was improved to a maximum of 210. 35 Sabine m2 and a minimum of 40. 35 Sabine m2. The noise reduction prediction for these control plan will be 8. 69-11. 6 dB(A). Conclusions The main reason of noise in the TBS was the passage and turbulence of gas flow in the mechanical unit, and reflective surfaces in constructions enclosing the installations. The control strategy, including the use of absorbent materials on ceiling and walls, was determined to reduce the sound pressure level to occupational exposure limit.

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APA: Copy

GOLMOHAMMADI, ROSTAM, khaefi, Nastaran, & ALIABADI, MOHSEN. (2019). Assessment occupational noise and control plan presentation in Town Board Stations. JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES, 26(3 ), 319-327. SID. https://sid.ir/paper/396772/en

Vancouver: Copy

GOLMOHAMMADI ROSTAM, khaefi Nastaran, ALIABADI MOHSEN. Assessment occupational noise and control plan presentation in Town Board Stations. JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2019;26(3 ):319-327. Available from: https://sid.ir/paper/396772/en

IEEE: Copy

ROSTAM GOLMOHAMMADI, Nastaran khaefi, and MOHSEN ALIABADI, “Assessment occupational noise and control plan presentation in Town Board Stations,” JOURNAL OF SABZEVAR UNIVERSITY OF MEDICAL SCIENCES, vol. 26, no. 3 , pp. 319–327, 2019, [Online]. Available: https://sid.ir/paper/396772/en

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