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Paper Information

Journal:   JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY   FALL 2007 , Volume 9 , Number 3 (34 SPECIAL ISSUE); Page(s) 167 To 174.
 
Paper: 

RISKS ASSESSMENT OF THE BORUJERD TEXTILE FACTORY ON THE LABORERS THAT EXPOSURE TO NOISE POLLUTION

 
 
Author(s):  MOHAMMADI ROUZBAHANI K.*, NASIRI PARVIN, GOLBABAEI FARIDEH
 
* FACULTY OF ENERGY AND ENVIRONMENT, SCIENCE AND RESEARCH BRANCH, ISLAMIC AZAD UNIVERSITY
 
Abstract: 
In order to assessment the risks of Borujerd Textile Factory on the laborers that exposure to noise pollution, a cross sectional study was conducted. 60 laborers of Spinning & Weaving saloons and official staffs (in two groups, case and control,) were randomly selected and have been audiometered, then the results have been examined through T test. At the next step the laborers have filled in 60 questionnaires (in two groups, case and control,) which have been examined with X test. In addition the diagrams of hearing loss levels have been drown (in four working years>16, 11-15, 6-10, <5) and its relation to working years. The results indicated that all group cases in all years in Spinning & Weaving saloons had hearing loss in both ears. The mean hearing loss threshold of all groups has the highest value in frequency band 2, 4, and 8 KHz If working years increase more than 10 years, hearing loss in1KHz frequency band will been seen. The lowest hearing sensitivity has been seen in frequency band 250, 500 HZ. It was indicated that If received noise have higher frequency, hearing tolerance threshold will be lower.
 
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