本文报告了308例苯、甲苯、二甲苯及混合苯作业工人的健康状况调查结果。其主要症状是:神衰综合征、消化系症状、皮肤粘膜刺激症状及出血倾向。苯及甲苯组均可引起中毒颗粒增高,且后者明显。三种苯化合物均可不同程度地影响T淋巴细胞对PHA的应答反应,血清免疫球蛋白见轻度改变。甲苯组失眠为主的神衰病人明显增多,其它作业组尿中Ad排出明显增加,NA、DA明显减少。 This article reports on the health status of 308 workers in benzene, toluene, xylene and mixed benzene. The main symptoms are: Shenyin syndrome, digestive symptoms, skin and mucous membrane irritation and bleeding tendency. Benzene and toluene group can cause toxic particles increased, and the latter is obvious. Three kinds of benzene compounds can affect T lymphocytes response to PHA to varying degrees, with mild changes in serum immunoglobulin. Toluene group insomnia dominated patients with cerebrovascular disease was significantly increased, other groups of urine excretion of urine increased significantly, NA, DA decreased significantly.