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自日本水俣湾发生汞中毒惨剧后,人们注意了环境中汞的研究。主要研究汞在湖泊环境中的循回及其对人的最大潜在中毒作用,人们早已知道,天然汞(除气态外)被风化后很快为自然水体中沉积物所吸收。最近发现在沉积物中惰性汞经过微生物活动可能变为可溶的甲汞(Methylmcrcury)化合物,然后被运移到食物链中。这一事实使许多研究者注意可能作为环境污染源的沉积物中汞含量的研究。
After the tragedy of mercury poisoning in Minamata Bay, Japan, attention has been paid to the study of mercury in the environment. The main focus of this study is the return of mercury in lake environments and its maximum potential for human poisoning. It has long been known that natural mercury (except for gaseous forms) is rapidly absorbed by sediments from natural waters. It has recently been found that inert mercury in sediments can become soluble in the methylmercury compounds by microbial activity and is then transported to the food chain. This fact has led many researchers to study the mercury content in sediments that may be sources of environmental pollution.