鱼类从河床沉积物中吸收汞的途径

Environmental Pollution (1970) Pub Date : 1979-07-01 DOI:10.1016/0013-9327(79)90046-6

Akira Kudo, D.C. Mortimer

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引用次数: 17

摘要

在实验室观察了20天汞从河床沉积物向淡水鱼的转移。渥太华河富有机物沉积物被氯化汞污染，总汞浓度为1.023 ppm。定量评价了从床沉积物到鱼类的两种可能的汞途径。从河床沉积物中积累的汞在鱼类体内的浓度比从河床沉积物中积累的汞在水中的浓度高9倍。个别鱼类体内的汞浓度差别很大。

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Pathways for mercury uptake by fish from bed sediments

Mercury transfer from bed sediments to freshwater fish was observed 20 days in the laboratory. Organic-rich sediments from the Ottawa River were contaminated with mercuric chloride to produce a total mercury concentration of 1·023 ppm.

Two possible mercury routes from bed sediments to fish were quantitatively evaluated. The concentration of mercury accumulated in fish from bed sediments was nine times higher than that accumulated from water in which mercury had come from bed sediments. The mercury concentration in individual fish varied considerably.

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来源期刊

Environmental Pollution (1970)

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