title: Reconstruction of historical lead contamination and sources in Lake Hailing, Eastern China: a Pb isotope study.
abstract: The history records of lead and its stable isotopic ratios were determined in a sediment core to receive anthropogenic impacts on the Lake Hailing in eastern China. The sediment core was dated based on (210)Pb, (137)Cs, and (239+240)Pu. The historical changes of Pb/Al and Pb isotope ratios showed increasing trend upward throughout the core, suggesting changes in energy usage and correlating closely with the experience of a rapid economic and industrial development of the catchment, Linyi City, in eastern China. Based on the mixing end member model of Pb isotope ratios, coal combustion emission dominated anthropogenic Pb sources in the half part of the century contributing 13 to 43 % of total Pb in sediment. Moreover, contributions of chemical and organic fertilizer were 1-13 and 5-14 %, respectively. In contrast, the contribution of leaded gasoline was low than 8 %. The results indicated that historical records of Pb contamination predominantly sourced from coal combustion and chemical and organic fertilizer in the catchment. In addition, an increase of coal combustion source and fertilizers was found throughout the sediment core, whereas the contribution of leaded gasoline had declined after 2000s, which is attributed to the phaseout of leaded gasoline in China.
authors.affiliation: Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China. rzhang_838@163.com.|School of Geodesy and Geomatics Engineering, Huaihai Institute of Technology, Lianyungang, 222005, Jiangsu Province, China. rzhang_838@163.com.
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.affiliation: School of Geodesy and Geomatics Engineering, Huaihai Institute of Technology, Lianyungang, 222005, Jiangsu Province, China.
authors.forename: Minglei
authors.initials: M
authors.lastname: Guan
authors.affiliation: School of Geodesy and Geomatics Engineering, Huaihai Institute of Technology, Lianyungang, 222005, Jiangsu Province, China.
authors.forename: Yujie
authors.initials: Y
authors.lastname: Shu
authors.affiliation: School of Geodesy and Geomatics Engineering, Huaihai Institute of Technology, Lianyungang, 222005, Jiangsu Province, China.
authors.forename: Liya
authors.initials: L
authors.lastname: Shen
authors.affiliation: School of Geodesy and Geomatics Engineering, Huaihai Institute of Technology, Lianyungang, 222005, Jiangsu Province, China.
authors.forename: Xixi
authors.initials: X
authors.lastname: Chen
authors.affiliation: Department of Chemical Engineering, Huaihai Institute of Technology, Lianyungang, 222005, Jiangsu Province, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China. tgli@qdio.ac.cn.
authors.forename: Tiegang
authors.initials: T
authors.lastname: Li
authors.affiliation: School of Geodesy and Geomatics Engineering, Huaihai Institute of Technology, Lianyungang, 222005, Jiangsu Province, China.|Institute of Jiangsu Coastal Zone Enviroment, Lianyungang, 222005, Jiangsu Province, China.
authors.forename: Tingchen
authors.initials: T
authors.lastname: Jiang
mesh_terms: D002681:China; D002947:Cities; D003031:Coal; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments; D007221:Industry; D007554:Isotopes / Q000032:analysis; D060106:Lakes / Q000737:chemistry; D007854:Lead / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data*
chemical_list: D003031:Coal; D007554:Isotopes; D014874:Water Pollutants, Chemical; D007854:Lead
keywords: Anthropogenic input; Lake sediments; Lead isotopes; Sediment accumulation rates; Source identification
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