title: Metal contamination in sediments of the western Bohai Bay and adjacent estuaries, China.
abstract: Twelve sediment cores were collected in July 2007 in open waters of western Bohai Bay, the Port of Tianjin, and the adjacent estuaries of the Haihe and Yongding Rivers. While overall concentrations of trace metals at incremental depths in these cores met the Marine Sediment Quality (GB18668-2002) criteria of China, the magnitude of both metal enrichment factors (EF) and geoaccumulation indices (I(geo)) suggested that pollution with Ag, Cd, Cr, Cu and Zn was occurring in the estuaries and Port. Risk analysis also suggested that Ag and Ni concentrations were sufficiently elevated as to cause adverse biological effects in the study area. Although metal concentrations in western Bohai Bay were of less concern, a positive relationship between EF values and excess (210)Pb activity for several metals suggested that their concentrations were increasing over time.
authors.affiliation: Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ 07043, USA. fengh@mail.montclair.edu
authors.forename: Huan
authors.initials: H
authors.lastname: Feng
authors.forename: Hongyou
authors.initials: H
authors.lastname: Jiang
authors.forename: Wensheng
authors.initials: W
authors.lastname: Gao
authors.forename: Michael P
authors.initials: MP
authors.lastname: Weinstein
authors.forename: Qiufeng
authors.initials: Q
authors.lastname: Zhang
authors.forename: Weiguo
authors.initials: W
authors.lastname: Zhang
authors.forename: Lizhong
authors.initials: L
authors.lastname: Yu
authors.forename: Dekui
authors.initials: D
authors.lastname: Yuan
authors.forename: Jianhua
authors.initials: J
authors.lastname: Tao
mesh_terms: D000704:Analysis of Variance; D002681:China; D019015:Geologic Sediments / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis*; D018570:Risk Assessment; D012623:Seawater / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical