ASSESSMENT OF HEAVY METALS IN SEDIMENTS AND PLANT SCREENING ALONG HUN RIVER

This paper determined the heavy metals contents ( Cu，Pb，Cd and Hg) of sediments and eight kinds of plants of Fushun City section along Hun River，and screened the phytoremediation of sediments of heavy metals pollution． The result showed that the whole pollution degree of sediments along Hun River was less，and the potential ecological risk was low． The pollution degree was Cd ＞ Hg ＞ Cu ＞ Pb． The plant accumulation effect was bulrush ＞ polygonum thunbergii ＞ water plant polygonum ＞ scirpus triqueter，and that of the other plants were low． The accumulation of four heavy metals in eight kinds of plants was all too low to get hyperaccumulator plant level． The transfer factors were all less than one，and the plants belong to root hoarding type plants．