重庆市某区中小型企业作业场所苯系物污染状况调查

INVESTIGATION ON THE CONTAMINATED STATUS OF BENZENE COMPOUNDS IN THE WORK PLACES OF MIDDLE AND SMALL ENTERPRISES IN CHONGQING

[目的]了解重庆市中小型企业作业场所苯系物的职业危害状况,为有关部门控制职业性有害因素提供依据。[方法]对重庆市某区28家中小型企业作业场所职业卫生状况进行调查,测定空气中苯、甲苯、二甲苯的浓度。[结果]苯、甲苯、二甲苯的平均浓度分别为14.48、62.03、45.01mg/m3,其合格率分别为27.27%、74.42%、83.72%。其中油漆工作业场所苯污染比喷漆工作业场所严重(苯合格率分别为18.18%、46.67%,P﹤0.05)。[结论]重庆市中小型企业作业场所中苯系物的污染严重,需加强职业危害因素的监测和控制。

[Objective] To investigate the oceupational hazard status of benzene compoands in the work places of middle and small nterprises in Chongqing,SO as to provide basis for related department to control OCCupational hazard.[Methods] The occupational health status of the work places of 28 middle and small enterprises in Chongqing were investigated,the concntrations of benzene,toluene and xylene in the air were detected.[Results]The average concentrations of benzene, methylbenzene and xylem were 14.48mg/m^3,62.03mg/m^3 and 45.01mg/m^3,whose qualified rates were 27.27%,74.42%and 83.72%,respectively.The contamination status of work place of pain was more serious than that of spray painting（the quali- fled rates ofbenzene were 18.18%and 46.67%,respectively,P〈0.05）.[Conclusion]The contaminated status of benzene in work places of middle and small enterprises is still serious in Chongqing,effort should be taken to strengthen the monitoring and control of occupational harzards.