Influence of copper and chromium to sorption of PFOS on marine sediment
KONG Xiang-yun1,2, CHEN Hong1, HAN Jian-bo1, ZHANG Can1, WANG Hua2
1. National Marine Environmental Monitoring Center, Key Laboratory of Coastal Ecology and Environment of State Oceanic Administration, Dalian 116023, China;
2. College of Fisheries and Life Science, Dalian Ocean University, Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province, Dalian 116023, China
Abstract：Perfluorooctanesulfonate (PFOS) often co-existed with heavy metals in aquatic environment.To investigate influence of heavy metals on PFOS sorption,sorption isotherms of PFOS on sediment with different concentrations of Cu2+ and Cr3+ in seawater and freshwater were determined.The results showed that both of sorption capacity and nonlinearity of PFOS increased significantly with increasing[Cu2+],especially when the content of PFOS was at low level.This enhancing effect was more obviously in seawater.Moreover,the effect could also be found in ocean and freshwater system with increasing[Cr3+],but much weaker than that with increasing[Cu2+].The above results will provide data to predict and model the transport,distribution and fate of PFOS,and will be helpful for evaluating the ecological risk of PFOS and heavy metals in ocean.
KONG Xiang-yun,CHEN Hong,HAN Jian-bo et al. Influence of copper and chromium to sorption of PFOS on marine sediment[J]. Marine Environmental Science, 2016, 35(1): 100-105.
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