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对 5 5名锰粉加工工人和 5 6名对照工人的某些肝功能指标进行了测定。结果表明 ,作业环境空气中锰尘MnO2 浓度几何均值为 1 96mg/m3 (0 17～ 2 2 2 4mg/m3) ,样品超标率 88 7%。接触组头晕头痛、睡眠障碍、容易疲劳和记忆不良的主诉率比对照组高 (P <0 0 5～ 0 0 1) ,血清谷丙转氨酶 (ALT)活性和麝香草酚浊度 (TTT)也明显升高 (P <0 0 5 )。提示锰毒性早期不仅累及工人的神经系统 ,也可能损害到肝功能。
Some liver function tests were performed on 55 manganese workers and 56 control workers. The results showed that the geometrical mean value of MnO2 concentration in the air of working environment was 1 96 mg / m3 (0 17 ~ 2 2 4 4 mg / m3), and the exceeding standard rate of samples was 88.7%. The prevalence rate of dizziness, headache, sleep disorders, fatigue and poor memory in the contact group were higher than those in the control group (P <0.05-0.01), serum ALT activity and thymidine turbidity (TTT) Was significantly higher (P <0 05). Prompt manganese toxicity not only involving the nervous system of workers, may also damage the liver function.