ارزیابی میزان مواجهه با صدا و افت شنوایی ناشی از آن در شاغلین صنایع صافکاری خودرو شهرستان قزوین
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Abstract:
Backgrounds and Objectives:Indusrial noise exposure is the most common hazardous agent in the world.This study has been done to determine the prevalence associated with occupational noise in car smoothers at qazvin.Materials and Methods: The study group composed of 50 subjects who were selected out of a total of 218 car smoothing workshops.Background information,exposure time and...with a questionnaire collected.Noise exposure and hearing loss were measured by noise dosimeter model CEL-280 and audiometer model OB 288 Madsen.Results: The mean of age and work experience were 38.7 and 21.5 respectively.Noise exposure and total hearing loss were measured 98.2±3.4 dB(90-104dB) and 22.1±9.16 dB respectively. Spireman correlation was significant between right and left ears(P<0.05 ,R=0.87).Total hearing loss were measured natural(NIHL!25) in 64 percent(32 person),slight(26! NIHL!40)in 34 percent(17 person) and moderate (41! NIHL!60) in 2 percent (1 person).The most and the least hearing loss were measured 42.4(4000 HZ) and 37.1(8000 HZ) dB in left and right ear respectively. The chi square analysis was significant between hearing loss,work experience and age(P=0.015).ANOVA analysis was not significant between noise exposure and hearing loss(P=0.09).Conclusion:Considering NIHL and severe noise exposure , the necessity for improvement of controlling and protection measures has prime importance.
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Background: Noise Induced Hearing Loss (NIHL) is one of the most common occupational diseases in the world. About 16% of hearing loss is associated with noise exposure in the workplaces. The aim of this research was investigation of the relationship between noise exposure and hearing loss. Methods: This cross-sectional study was conducted in 2010 on1062 workers in Tabriz Tractor Manufacturing ...
full textارزیابی آلودگی صدا و افت شنوایی ناشی از آن در کارگران سنگبریهای ملایر
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Background & Objectives : Worker exposure conditions such as noise level, exposure duration, use of hearing protection devices and health behaviors are commonly related to noise induced hearing loss. The objective of this study was risk assessment of influence factors on occupational hearing loss in noise exposed workers in typical noisy process . Methods : Information abo...
full textافت شنوایی شغلی ناشی از مواجهه با صدا در یک صنعت تراکتورسازی
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Introduction: Noise-induced hearing loss (NIHL) is a major problem in industrialized and developing countries. Trend of industrialization and lack of proper protective equipment lead to an increased frequency of noise-related disorders especially NIHL. This study was conducted to investigate noise pollution and the frequency of NIHL in workers of one of the ceramic industries. Materials and ...
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volume 4 issue None
pages 85- 92
publication date 2011-05
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