Risk assessment for noise-induced hearing loss in automotive assembly workers
- VernacularTitle:汽车装配作业人员噪声所致听力损失风险评估
- Author:
Liang-liang GUO
1
;
Jia-bing WU
1
;
Kun WU
1
;
Yong MEI
2
;
Liang-ying MEI
3
;
Rui-jie LING
4
;
Cheng QI
1
;
Jian-ru ZHENG
1
;
Rong-bin SUN
1
;
Liang-liang ZHU
1
;
Wei-wei SHI
1
;
Shao-hua YANG
1
;
Jing CHEN
1
;
Li YAO
1
;
Yan-ping YAO
1
;
Hong YIN
1
;
Li-hua DING
1
;
Xiao-juan WU
1
Author Information
- Publication Type:Journal Article
- Keywords: Automotive manufacturing; Hearing loss; Noise exposure; Risk assessment
- From: Journal of Public Health and Preventive Medicine 2022;33(6):63-67
- CountryChina
- Language:Chinese
- Abstract: Objective To evaluate the risk of hearing loss of assembly workers in an automobile manufacturing factory. Methods An 8-hour equivalent sound level monitoring was carried out for assembly posts in an automobile factory. The risk of noise-induced hearing loss of assembly workers was measured using the method specified in ISO 1999:2013(E). The risk of noise-induced hearing loss was assessed in a graded manner according to the Guidelines for the Management of Occupational Disease Hazards from Noise. The results were statistically analyzed using Pearson correlation analysis. Results The average 8-hour equivalent sound level of the assembly work post in this automobile manufacturing factory was 89.5 dB (A). At 4000 Hz, the hearing loss N50 (dB) of assembly workers reached the maximum. The longer the exposure time, the higher the risk of high-frequency standard hearing threshold shift. The risk of high-frequency standard hearing threshold shift was at a relatively high level at 30 years of work, while the risk of noise deafness reached a higher level after 40 years of work. Conclusion The 8-hour equivalent sound level (LEX,8h) of assembly workers in the automobile factory exceeds the occupational exposure limit. With the increase of exposure years, the risk of high-frequency standard hearing threshold shift and noise deafness increases.
