HAN Jianbo, WANG Juying, MA Deyi, QUAN Xie. Relation of asid-volatile sulfide and clay content of sediment to the bioavailability of zinc and cadmium: laboratory plus field experiment[J]. Acta Oceanologica Sinica, 2005, (5): 61-67.
Citation:
HAN Jianbo, WANG Juying, MA Deyi, QUAN Xie. Relation of asid-volatile sulfide and clay content of sediment to the bioavailability of zinc and cadmium: laboratory plus field experiment[J]. Acta Oceanologica Sinica, 2005, (5): 61-67.
HAN Jianbo, WANG Juying, MA Deyi, QUAN Xie. Relation of asid-volatile sulfide and clay content of sediment to the bioavailability of zinc and cadmium: laboratory plus field experiment[J]. Acta Oceanologica Sinica, 2005, (5): 61-67.
Citation:
HAN Jianbo, WANG Juying, MA Deyi, QUAN Xie. Relation of asid-volatile sulfide and clay content of sediment to the bioavailability of zinc and cadmium: laboratory plus field experiment[J]. Acta Oceanologica Sinica, 2005, (5): 61-67.
School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, China;National Marine Environmental Monitoring Center, P. O. Box 303, Dalian 116023, China
2.
National Marine Environmental Monitoring Center, P. O. Box 303, Dalian 116023, China
3.
School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, China
Organic matter and iron and maganese oxides have been considered as the major affecting factors for metals in anoxic or oxidized sediment.In recent research, clay and sulfide are found as major factors in oxic or oxidized sediments that might affect bioavailability of metals.To test this hypothesis, the influence of sulfide, measured as acid-volatile sulfide (AVS), and clay content on the bioavailability of zinc and cadmium in sediments was examined.Laboratory simulative experiment and field verification experiment were conducted, showing that the bioavailability of zinc and cadmium is strongly correlated to AVS and clay content in sediments.Taking into account both AVS and clay parameters in sediments together can better indicate the bioavailability of zinc and cadmium rather than considering one of them alone.
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