title: Tracing the recently increasing anthropogenic Pb inputs into the East China Sea shelf sediments using Pb isotopic analysis.
abstract: This study examined the Pb content and Pb isotopic composition in a sediment core taken from the East China Sea (ECS) shelf, and it was observed that since 2003 the increasing anthropogenic Pb inputs have impacted as far as the ECS shelf sediments. The ECS shelf sediments were generally characterized with low bulk Pb contents (12.5-15.0 μg/g) and relatively lithogenic Pb isotopic signatures (both HCl-leached and residual fractions). However, elevated Pb records along with lighter Pb isotopic signals have occurred in the post-2003 sediments, as a result of a small but increasing anthropogenic Pb contribution from the heavily human perturbed coastal sediments due to the sharply increasing coal consumption in mainland China since 2003.
authors.affiliation: State Key Laboratory of Marine Environmental Science, Xiamen University, 422 Siming Nanlu, 361005 Xiamen, PR China. Electronic address: deliwang@xmu.edu.cn.
authors.forename: Deli
authors.initials: D
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, CAS, 46 Guanshui Road, 55002 Guiyang, PR China.
authors.forename: Zhiqi
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Marine Environmental Science, Xiamen University, 422 Siming Nanlu, 361005 Xiamen, PR China.
authors.forename: Minhan
authors.initials: M
authors.lastname: Dai
mesh_terms: D002681:China; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D006801:Humans; D007854:Lead / Q000032:analysis*; D012623:Seawater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical; D007854:Lead
keywords: Anthropogenic impacts; Coal burning; Lead isotopes; Lithogenic lead inputs; Marginal sea