摘要
[目的]探讨低浓度苯及同系物对接触工人的健康危害,为今后防治苯的危害提供依据。[方法]对2个企业苯作业车间空气中毒物浓度进行测定,并对观察组和对照组工人进行健康体检。[结果]2个厂工作场所苯浓度短时间接触均值分别为1.03、1.93 mg/m3,均低于国家职业卫生标准;观察组和对照组的临床症状检出率、心电图、X线胸片及血压异常率的差异均无统计学意义(P>0.05);接触组外周血白细胞减少31例,占27.0%,高于对照组,差异有统计学意义(P<0.01);观察组年龄和工龄分析表明,白细胞下降有随年龄和工龄增加而降低的趋势,但差异无统计学意义(P>0.05)。[结论]低浓度的苯及同系物可对人体健康产生危害。
In order to prevent the harmful of benzene, the effects in workers exposed to low-level benzene were investigated. [Methods]Air samples of benzene from workplace and occupational health data of workers exposed to benzene and control＇s workers were collected of 2 Corporations. [Results]Results showed that the air benzene levels of workplace in 2 factories were 1.03 and 1.93 mg/m^3, respectively, and these concentrations were lower than the Pemissible Concentration-Short Term Exposure Limit. The incidence of clinical symptems, electrocardiogram, X-ray, blood pressure in exposed were not significantly from controls（ P ）0.05）. The decrease proportion of peripheral-blood white blood cell count in exposed workers（31 cases, 27.0 % ） were significantly higher than controls（ P〈 0.01）, and the white blood cell decrease has no different from various ages and length of service in exposed workers. [Conclusion]The low-level benzene is harmful to exposed workers.
出处
《预防医学论坛》
2007年第9期815-817,共3页
Preventive Medicine Tribune
