常州市钟楼区工业企业苯系物职业病危害调查

目的了解常州市钟楼区工业企业苯系物的职业病危害。方法对辖区内29家使用苯系物的工业企业进行苯系物监测，对782名接触苯系物的劳动者进行职业健康检查。结果工作场所空气中苯浓度合格率为83．7％，甲苯浓度合格率为89．2％，二甲苯浓度合格率为91．1％。苯系物接触组工人白细胞下降检出率为13．9％，非接触组为8．3％，差异有统计学意义；苯系物接触组工人血红蛋白下降检出率为5．6％，非接触组为2．5％，差异有统计学意义。苯系物接触组女工白细胞下降检出率为19．2％，男工为8．3％，差异有统计学意义；苯系物接触组女工血红蛋白下降检出率为8．4％，男工为2．7％，差异有统计学意义。苯系物接触组男工高血压检出率为21．6％，血清中丙氨酸转氨酶（ALT）异常检出率为18．7％，肝胆疾患检出率为25．9％，均高于女性的12．0％、3．2％、14．3％，差异有统计学意义。结论该区工业企业仍存在苯系物的职业病危害。为保护劳动者身体健康，企业需加强职业卫生管理，改革生产工艺，采取有效的通风排毒措施，确保苯系物的浓度控制在国家标准之内，同时加强职业卫生监测和职业健康监护工作，及时发现职业禁忌证和敏感人群，尤其要加强女工的保护，避免职业中毒的发生。

Investigation on occupational hazard of benzene series in industrial enterprises in Zhongiou District of Changzhou City

Objective]To understand the occupational hazard of benzene series in industrial enterprises in Zhonglou District of Changzhou City. Methods ] The levels of benzene series were monitored in 29 industrial enterprises which use the benzene series, and 782 workers exposed to benzene series received the occupational health examination. Results ] The qualified rate of benzene concentration, toluene concentration and xylene concentration in the workplace was 83.7%, 89.2% and 91.1%, respectively. The detection rate of leucopenia in the benzene series exposure group and the non-exposure group was 13.9% and 8.3% respec- tively, and the difference was statistically significant. The detection rate of decreasing hemoglobin in the benzene series exposure group and the non-exposure group was 5.6% and 2.5% respectively, and the difference was statistically significant. In the benzene series exposure group, the detection rate of leucopenia in females and males was 19.2% and 8.3% respectively, and the detection rate of decreasing hemoglobin in females and males was 8.4% and 2.7% respectively, which the differences were statistically sig- nificant. The detection rate of hypertension, higher ALT and hepatobiliary diseases among males in the benzene series exposure group was 21.6%, 18.7% and 25.9% , which were respectively higher than those among females { 12.0%, 3.2% and 14.3% ） , and the e differences were statistically significant. Conclusion ] The occupational hazard resulted from benzene series have been found in the industrial enterprises in Zhonglou District of Changzhou City. In order to protect workers＇health, the enterprises should strengthen the administration of the occupational health, reform the production process, and take effective measures of the ventila- tion and toxicants elimination, to ensure that the concentration of benzene series meet the national standard. Meanwhile, it is neces- sary to strengthen occupational hygiene monitoring and occupational health surveillance, and find occupational contrain