苯对人体健康的影响早已被重视,但过去仅注意苯对血液系统的影响。近年来始注意到苯对神经系统的影响。人长期接触低浓度的苯,可引起慢性中毒,对神经系统的影响主要表现有神经衰弱症候群;而慢性苯中毒动物可见萎糜、衰弱、食量减少、体重下降等。关于动物实验观察国内报道很少,国 The effects of benzene on human health have long been valued, but in the past only the effects of benzene on the blood system were noted. In recent years, the effect of benzene on the nervous system has been noticed. Long-term exposure to low concentrations of benzene, can cause chronic poisoning, the main impact of the nervous system manifestations of neurasthenia syndrome; and chronic benzene poisoning animals see Wei, weak, reduced appetite, weight loss and so on. About animal experiments observed few domestic reports, the country