title: Impact of anions on the heavy metals release from marine sediments.
abstract: Marine sediments from Lianshan Bay in Huludao, China, were studied in laboratory. A series of simulated experiments were carried out to investigate the influences of three kinds of anions Cl-, SO42- and HCO3 on the release of Cd, Pb, Cu and Zn from the sediments. The results showed that the sequences about the impact of the three anions were Cl- >HCO3 > SO42. The release potential of heavy metals in the presence of each anions was in the following order: Cd>>Cu>Zn approximately equal to Pb. The correlations were positive between Cl content and the quantity of Cd released from the marine sediment, whereas there was no significant relationship between Cl-content and amount of Cu and Zn released. For SO42- and HCO3-, the release of the heavy metals from marine sediments was not obvious.
authors.affiliation: Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
authors.forename: Ai-ping
authors.initials: AP
authors.lastname: Zhong
authors.forename: Shu-hai
authors.initials: SH
authors.lastname: Guo
authors.forename: Feng-mei
authors.initials: FM
authors.lastname: Li
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Ke-xu
authors.initials: KX
authors.lastname: Jiang
mesh_terms: D000838:Anions / Q000737:chemistry*; D002681:China; D004785:Environmental Pollutants / Q000032:analysis / Q000737:chemistry*; D019015:Geologic Sediments / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis / Q000737:chemistry*; D013054:Spectrophotometry, Atomic
chemical_list: D000838:Anions; D004785:Environmental Pollutants; D019216:Metals, Heavy