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Present situation of occupational hazards in an automotive interior system manufacturing enterprise of Chongqing
Pages: 2452-2456
Year: Issue:  18
Journal: Occupation and Health

Keyword:  Automotive interior systemOccupational hazardsPresent situation;
Abstract: [Objective] To identify the occupational hazards in the process of production on an automotive interior system manufacturing enterprise,determine the hazards extent,and analyze the status of occupational hazards.[Methods] Occupational health field survey and occupational hazards detection were applied in qualitative and quantitative analysis and evaluation.[Results] The main occupational hazards were noise,benzene,toluene,xylene,dust,styrene,carbon tetrachloride,chloroform,yoluene-2,4-diisocyanate (TDI),diphenyl-methane-diisocyanate (MDI) and formaldehyde.The equivalent continuous sound level normalized to 8 hours (LEX,8h) in 38.6% of workers exceeded the national standard with the maximum value of 92.7 dB(A),and the posts included spraying,assembly and friction welder.The concentrations of chemical factors met the requirements of national occupational exposure standards.The time-weighted average concentration (CTWA) and short time exposure limit concentration (CSTEL) of benzene was 0.21-4.40 mg/m3 and 3.1-3.4 mg/m3 respectively,which reached 50%-100% of occupational exposure limits (OELs).The maximum concentration (CMc) of formaldehyde was 0.1 mg/m3 and CTWA of chloroform was 2.9-4.0 mg/m3.The CTWA and CSTEL of carbon tetrachloride was 2.9-4.0 mg/m3 and 2.2-3.3 mg/m3 respectively,which reached 10%-50% of OELs.The concentrations of other chemical factors were lower than 10% of OELs.[Conclusion] The risk of occupational hazards in this enterprise belongs to serious level,and the present situation of occupational hazards is not optimistic.It is necessary to take the engineering control measures and improve the operation status.
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