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对２１８名氯气作业工人进行了全面调查。长期接触氯酸的工人可引起不同程度的神经系统症状，粘膜充血、皮肤粗糙、座疮，更为突出的是引起牙齿酸蚀症，酸蚀症的发生随着工龄增长检出率增高，酸蚀程度也加重。同时还引起心电图，胸部Ｘ线表现异常，与对照组相比有显著差异。对血色素、红细胞、白细胞、出凝血时无明显影响。
A total of 218 chlorine workers were thoroughly investigated. Long-term exposure to chloral acid workers can cause varying degrees of nervous system symptoms, mucosal hyperemia, rough skin, acne, the more prominent cause of tooth erosion, acidosis occurs with the increase of seniority detection rate, acid Erosion degree also increased. At the same time also caused electrocardiogram, chest X-ray abnormalities, compared with the control group were significantly different. Right hemoglobin, red blood cells, white blood cells, clotting no significant effect.