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据报道,不久前,加拿大温哥华一名两岁儿童突然夭折。经医学检验发现,死亡根源竟是;孩子连续29天饮用了彩瓷壶中的苹果汁,结果导致铅中毒。 铅污染对儿童的危害往往是潜在的。在产生中枢神经系统损害之前,往往缺乏明显和典型的表现而容易被忽视。更为严重的是,铅对中枢神经系统的毒性作用是不可逆的。上海市曾随访研究43名脱离铅污染环境的学龄儿童,发现虽然血铅已明显下降,但是3年前血铅平均高于0.25毫克/升的儿童,双手动作协调能力依然逊于血铅水平相对低的儿童。儿童血铅水平超过1毫克/升时,即会对智能发育产生不可逆转的损害。铅目前还是国际公认的致癌有毒物质。
According to reports, not long ago, a two-year-old child suddenly died in Vancouver, Canada. The medical examination found that the root cause of death was actually; children drink pottery jars for 29 days in a row, resulting in lead poisoning. The harmful effects of lead pollution on children are often potential. Before the central nervous system damage, often lack of obvious and typical performance and easily overlooked. More seriously, lead toxicity to the central nervous system is irreversible. In Shanghai, 43 schoolchildren who were exposed to lead-contaminated environment were followed up and found that blood lead levels were significantly lower than those of blood lead levels 3 years ago, with an average blood lead level of 0.25 mg / L 3 years ago Children with relatively low levels. Children with blood lead levels above 1 mg / l will have irreversible damage to their intellectual development. Lead is currently an internationally recognized carcinogen.