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- W2393375100 abstract "Objective To protect the health of the industrial noise exposed workers,prevent and control the occurrence of noise-induced hearing loss,and reduce the incidence of occupational noise-induced deafness. Methods 104 male workers of winding workshop in a battery assembly enterprise were enrolled as study subjects. Using the method given by GBZ / T 189. 8,their average LEX,Wwas measured and calculated as 86. 9 d B( A). Assuming the exposure of workers to this level of noise was from the age of 20, the consequences and probabilities of noise-induced hearing loss were predicted by using ISO 1999:2013( E) risk model with proper frequencies and cut-off values as needed. Results It was found that( 1) If this group was exposed to this level of noise,after 10,20,30,35 or 40 years exposure,the risk of high-frequency standard threshold shift( HSTS) due to age and noise exposure were 40. 9%,62. 1%,80. 8%,86. 8% and 90. 8%,respectively; the risk of occupational noise deafness due to age and noise exposure were 0—5. 0%,0—5. 0%,0—5. 0%,7. 3% and 13. 0%,respectively.( 2) The risk of HSTS due to noise exposure in this population were 20. 4%,21. 0%,13. 5%,9. 2% and 6. 1%,respectively,and the risk of occupational noise deafness due to noise exposure were 0—5. 0%,0—5. 0%,0—5. 0%,2. 2%and 2. 9%,respectively.( 3) It also showed that the maximum of H'50and N50 appeared at 4 000 Hz,the curve of audiogram showed a V shape,and both H'50and N50 were all increased with the duration of noise exposure,if initial exposure age and exposure noise level were fixed. Conclusion The key measure for management of noise-related occupational risk was to reduce noise-induced permanent threshold shift( N),and for these with HSTS and those diagnosed as occupational noise deaf,should take different management strategies to reduce the risk." @default.
- W2393375100 created "2016-06-24" @default.
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- W2393375100 date "2015-01-01" @default.
- W2393375100 modified "2023-09-25" @default.
- W2393375100 title "Application of risk assessment for noise-induced hearing loss in evaluation of occupational hazards" @default.
- W2393375100 hasPublicationYear "2015" @default.
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