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标题：Accumulation of Cd and Pb in water, sediment and two littoral plants (Phragmites australis, Typha angustifolia) of freshwater ecosystem
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作者：Klaudia Borowiak ; Jolanta Kanclerz ; Mirosław Mleczek 等
期刊名称：Archives of Environmental Protection
印刷版ISSN：2083-4772
电子版ISSN：2083-4810
出版年度：2016
卷号：42
期号：3
页码：47-57
DOI：10.1515/aep-2016-0032
语种：English
出版社：Walter de Gruyter GmbH
摘要：Cd and Pb concentrations were measured in water, sediment and plant organs collected from selective sites located along the Bogdanka river (Poznań, Poland) in the 2012 growing season. The aim of the investigations was to monitor changes in heavy metal (HM) concentrations in different media over the periods, as well as to evaluate potential of two littoral plants, Phragmites australis and Typha angustifolia , for phytoremediation under natural conditions. Investigations revealed differences in HM concentrations in water and sediments. Higher values were observed in sediments than in water. The decrease in concentrations of both HMs in sediments was noted in two of the three selected water reservoirs during growing seasons, which suggests the possibility of their adsorption and accumulation by aquatic plants. Both investigated plant species accumulated ample amount of Cd and Pb in underground and aboveground plant tissues, however T. angustifolia revealed higher Cd translocation potential than P. australis . The latter revealed higher Pb accumulation in two lakes. Moreover, the translocation ratio was usually higher in spring, especially for Pb, in both plant species. Increasing level of pollution load index in sediment along the Bogdanka watercourse indicates accumulation of measured HMs.
关键词：cadmium ; lead ; freshwater ecosystem ; plants ; sediment ; water