目的通过分析汽车零部件制造行业职业病危害及其关键控制点,探讨其适用的防护对策和管理措施,为汽车零部件制造行业职业病危害防控提供依据。方法采用职业卫生调查、职业病危害因素检测和检查表分析等方法综合评判关键控制点及其防护措施。结果汽车零部件制造行业存在化学毒物、粉尘、噪声、高温、电焊弧光、振动和x射线等职业病危害因素;汽车灯具总成的表面处理岗位接触的甲苯和甲醇浓度超过职业接触限值,超标率分别为16.7%和4.O%;汽车悬挂/转向系统的焊接岗位接触的二氧化锰和电焊烟尘超过职业接触限值,超标率均为8.3%;噪声超标率最高的为汽车轮圈制造(超标率为87.1%),其次为汽车悬挂/转向系统制造,超标率为49.0%;其他危害因素均低于职业接触限值。结论汽车零部件制造行业职业病危害关键控制岗位为注塑、发泡、涂布/喷涂、焊接、铸造、探伤等,应采取综合防控措施控制有害因素。
Objective To analyze the occupational hazards and critical control points in the automobile -component manu- factories, provide basis for protective strategy of occupational hazard through study of preventive measures and management for automobile- component manufactories. Methods The methods were applied including occupational sanitary survey, detection of occupational disease factors and checklist. Results The main occupational hazard factors that might exist in the automobile - component manufactories were chemical toxicants, dust, noise, high temperature, electric welding' s arc light and X - ray. The exceeding rates of toluene and carbinol concentrations were 16. 7% and 4.0% respectively in auto- motive lamps and lanterns manufactories,the exceeding rates of welding fume and manganese dioxide were both 8. 3% in automotive rim and suspension system manufactories. The noise hazard of automobile - component manufactories producing automotive rim and suspension system was most serious, their over standard rates were 87. 1% and 49. 0% respectively. Concentrations or intensities of other hazard factors were below occupational exposure limits. Conclusion The critical con- trol points of occupational hazards are plastic mould, foam, welder, painter, casting and X - ray application workers. Occupational hazards should be taken measures to control.