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目的评价某煤焦油加工项目职业病危害控制效果,提出合理可行的防护对策。方法采用职业卫生现场调查和工程分析,识别生产过程中存在的职业病危害因素及部位,并采用职业卫生检测检验法对职业病危害因素的浓度(或强度)进行测定和分析,评价其职业性危害程度及防护设施效果。结果该项目主要职业病危害因素为:硫化氢、一氧化碳、二氧化硫、氮氧化物、苯、甲苯、二甲苯、联苯、甲酚、萘和噪声,经检测各化学物质的浓度和噪声强度均符合工作场所有害因素职业接触限值。硫化氢最高浓度为1.12 mg/m3,萘、苯、甲苯、二甲苯的CSTEL最大值分别为2.84、8.03、1.20、3.30 mg/m3,CTWA最大值分别为1.59、0.83、0.60、1.65 mg/m3。结论该项目采取的职业病危害防护措施和管理措施是可行的。
Objective To evaluate the control effect of occupational hazards in a coal tar processing project and put forward reasonable and feasible countermeasures. Methods Occupational health investigation and project analysis were used to identify the occupational hazards and parts in the production process. Occupational hazards were measured and analyzed by occupational health testing method. The occupational hazards were evaluated And protective equipment effects. Results The main occupational hazards of the project were: hydrogen sulfide, carbon monoxide, sulfur dioxide, nitrogen oxides, benzene, toluene, xylene, biphenyl, cresol, naphthalene and noise. The concentrations and noise intensities of the tested chemical substances were in line with the work Hazardous Locations Occupational exposure limits. The maximum concentration of hydrogen sulfide was 1.12 mg / m3, the maximum CSTEL of naphthalene, benzene, toluene and xylene were 2.84, 8.03, 1.20 and 3.30 mg / m3 respectively, and the maximum values of CTWA were 1.59, 0.83, 0.60 and 1.65 mg / m3 . Conclusion The occupational disease hazard protection measures and management measures adopted in this project are feasible.