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Paper Information

Journal:   JOURNAL OF OCCUPATIONAL HYGIENE ENGINEERING   FALL 2017 , Volume 4 , Number 3 ; Page(s) 41 To 48.
 
Paper: 

THE NOISE CONTROL PRIORITIZING INDEX IN A TIRE MANUFACTURING COMPANY

 
DOI: 

10.21859/johe.4.3.41

 
Author(s):  GOLMOHAMMADI ROSTAM, MOAZAZ FOROUGH*, ALIABADI MOHSEN
 
* DEPARTMENT OF OCCUPATIONAL HEALTH, FACULTY OF HEALTH, HEALTH SCIENCES RESEARCH CENTER, HAMADAN UNIVERSITY OF MEDICAL SCIENCES, HAMADAN, IRAN
 
Abstract: 

Background and Objective: Controlling noise pollution in indoor environments has always been faced with administrative and financial constraints, and scientific prioritizing is a useful approach in dealing with this issue. In the current study, we sought to determine the noise control prioritizing index (NCPI) in various units of a tire manufacturing company.
Materials and Methods: The evaluation of environmental noise for determining the sound pressure levels in various units was performed in accordance with ISO 9612 standard. An index was defined by using the three parameters of the number of people exposed, exposure time, and weighting factor corresponding to the sound pressure level. Further, a formula was devised to calculate this index. The distribution of noise level in each unit with noise control as the top priority was depicted using Surfer ver.10.
Results: According to the environmental measurements, 22.9% of the investigated stations had a noise level within the danger zone and the others were in the caution zone (77.1%). No station was in the safe zone. The sound pressure level ranged between 69.9 and 104.7 dB (A). Among the 11 investigated units, the curing unit with 20 employees had the highest noise control priority index (NCPI=1.369).
Conclusion: The use of a combination of various parameters affecting noise pollution provides a reliable method for prioritizing noise control in various units of an industrial company. The results of the present study are applicable to all similar industrial settings.

 
Keyword(s): NOISE CONTROL, NOISE EXPOSURE, PRIORITIZING INDEX, TIRE MANUFACTURING
 
References: 
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