title: Influence of Sedimentation Rate on the Metal Contamination in Sediments of Bohai Bay, China.
abstract: Metal concentration in marine sediments is influenced by sedimentation rate. In this study, the metal concentration in sediments of Bohai Bay, China, was adjusted by sedimentation rate, which was derived from the radionuclide dating method. The results showed that the sedimentation rate of Bohai Bay sediments increased from 0.3 to 0.55 g/a over time, especially in the last 30 years since the economic reform in China. The sequence of metal concentrations (mg/kg) is: Cr(97.41) > Zn(73.14) > Cu(20.59) > Pb(16.42) > Cd(0.49). Through the adjustment, the change of metal concentration in sediment cores increased obviously from bottom to surface sediments. It indicated that the increasing sedimentation rate of Bohai Bay in recent years diluted the metal concentration in the sediment.
authors.affiliation: Tianjin Academy of Environmental Sciences, Tianjin, 300191, China.|Tianjin Key Laboratory for Water Pollution Control and Ecological Restoration, Tianjin, 300191, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Tianjin Academy of Environmental Sciences, Tianjin, 300191, China. xueqianglu@gmail.com.|Tianjin Key Laboratory for Water Pollution Control and Ecological Restoration, Tianjin, 300191, China. xueqianglu@gmail.com.
authors.forename: Xueqiang
authors.initials: X
authors.lastname: Lu
authors.affiliation: Tianjin Academy of Environmental Sciences, Tianjin, 300191, China.
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Shao
authors.affiliation: Tianjin Academy of Environmental Sciences, Tianjin, 300191, China.|Tianjin Key Laboratory for Water Pollution Control and Ecological Restoration, Tianjin, 300191, China.
authors.forename: Honglei
authors.initials: H
authors.lastname: Liu
authors.affiliation: Tianjin Academy of Environmental Sciences, Tianjin, 300191, China.
authors.forename: Meinan
authors.initials: M
authors.lastname: Xing
authors.affiliation: Tianjin Institute of Radioactive Environment Management, Tianjin, 300191, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhao
authors.affiliation: Tianjin Institute of Radioactive Environment Management, Tianjin, 300191, China.
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Li
authors.affiliation: Tianjin Academy of Environmental Sciences, Tianjin, 300191, China.
authors.forename: Min
authors.initials: M
authors.lastname: Yuan
mesh_terms: D061006:Bays / Q000737:chemistry*; D002681:China; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D019216:Metals, Heavy / Q000032:analysis* / Q000737:chemistry; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical
keywords: Adjustment; Bohai Bay; Metals; Sedimentation rate