茂名市某钓鱼竿厂苯、甲苯、二甲苯危害的调查分析

目的了解茂名市某钓鱼竿厂苯、甲苯、二甲苯（“三苯”）对作业人员健康的危害程度。方法对茂名市某钓鱼竿厂工作场所进行“三苯”浓度测定，并对50例“三苯”作业工人（接触组）和68例不接触“三苯”工人（对照组）进行体检。结果该厂工作场所空气中的苯、甲苯、二甲苯时间加权平均容许浓度（PC—TWA）、短时间接触容许浓度（STEL）均未超标。接触组头痛、头晕、失眠、记忆力减退的发生率高于对照组，差异有显著性（P〈0．05或P〈0．01）。血常规检查结果显示，接触组白细胞减少的检出率高于对照组（P〈0．01）。结论该厂“三苯”对作业工人的健康存在一定的潜在危害，应做好“三苯”危害的预防工作。

The investigation and analysis of the harmfulness by benzene,toluene and xylene in a fish pole plant in maoming

Objective To study the hazardous effect of mixed benzene(benzene,toluene and xylene,BTX)on the health of the workers in a fish pole plant in Maoming Guangdong.Methods The concentrations of BTX in the workplaces were determined in a fish pole plant in maoming and 50 workers exposed to BTX(exposure group)and 68 unexposed workers(female 35cases,men 31 cases,(control group)were health examinationed.Results The PC-TWA and the STEL of BTX in the workplaces were lower occupation exposure limits.The incidences of headache、dizzy、wakefulness、mnemasthenia in the exposure group were significantly higher than those in the control group(P<0.05 or P<0.01).The results of the blood test show that the reduce of the white blood cell of the exposure group(6 cases)were significantly higher than those in the control group(1 cases)(P<0.01).Conclusion It may lead to potential hazard on the exposure BTX in the fish pole plant,so protection against it should be made.