论文部分内容阅读
本文论述了铊的动力学过程和铊中毒的各种临床表现,评价了铊对人体健康及环境的影响。铊可由胃肠道、呼吸道和皮肤吸收到体内,主要经肾脏从尿中排泄,体内半衰期约为10 天。非铊污染地区,人尿铊浓度平均为0.42μg/L±0.09μg/L,若超过500μg/L则会出现各种铊中毒表现,而且尿铊浓度与临床症状之间存在明显的剂量—反应关系,对不同铊接触水平引起毒性反应的危险性也进行了比较。同时,探讨了铊对环境的影响情况,分析了造成环境铊污染的原因和特点,指出铊污染的严重性。
This article discusses the kinetic process of thallium and various clinical manifestations of thallium poisoning, evaluating the impact of thallium on human health and the environment. Thallium can be absorbed into the body by the gastrointestinal tract, respiratory tract and skin, mainly excreted by the kidneys from the urine. The half-life in vivo is about 10 days. In non-thallium-contaminated areas, the average urinary thallium concentration is 0.42μg / L ± 0.09μg / L, and if it exceeds 500μg / L, various kinds of thallium poisoning appear, and there is a clear dose between the thallium concentration and the clinical symptoms - The relationship between the response of different levels of exposure to thallium toxicity caused by the risk were also compared. At the same time, the impact of thallium on the environment was discussed. The causes and characteristics of thallium pollution were analyzed. The seriousness of thallium pollution was pointed out.