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慢性砷中毒症是以色素沉着、皮疹、白斑、角质增殖等皮肤症状,鼻中膈穿孔、鼻粘膜瘢痕等鼻粘膜症状和末梢神经障碍为主的一种由砷引起的环境污染病。1973年2月,日本政府把慢性砷中毒症列为继水俣病,痛痛病、四日市喘息病之后的第四公害病。土吕久慢性砷中毒症
Chronic arsenism is a kind of environmental pollution disease caused by arsenic, which is mainly caused by pigmentation, rash, leukoplakia, skin symptoms such as keratinocyte proliferation, nasal septum perforation, nasal mucosal scar and other nasal mucosal symptoms and peripheral nerve disorders. In February 1973, the Japanese government classified chronic arsenicosis as the fourth public hazard after Minamata disease and painful illness, and Yokkaichi asthma. Tulu long chronic arsenicosis