title: Polycyclic aromatic hydrocarbon concentrations, compositions, sources, and associated carcinogenic risks to humans in farmland soils and riverine sediments from Guiyu, China.
abstract: The concentrations of 16 priority polycyclic aromatic hydrocarbons (PAHs) were measured in 23 farmland soil samples and 10 riverine sediment samples from Guiyu, China, and the carcinogenic risks associated with PAHs in the samples were evaluated. Guiyu is the largest electronic waste (EW) dismantling area globally, and has been well known for the primitive and crude manner in which EWs are disposed, such as by open burning and roasting. The total PAH concentrations were 56-567 ng/g in the soils and 181-3034 ng/g in the sediments. The Shanglian and Huamei districts were found to be more contaminated with PAHs than the north of Guiyu. The soils were relatively weakly contaminated but the sediments were more contaminated, and sediments in some river sections might cause carcinogenic risks to the groundwater system. The PAHs in the soils were derived from combustion sources, but the PAHs in the sediments were derived from both combustion and petroleum sources.
authors.affiliation: College of Chemistry, Dalian University of Technology, Dalian 116024, China; National Research Center for Environmental Analysis and Measurement, Beijing 100029, China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
authors.forename: Pengjun
authors.initials: P
authors.lastname: Xu
authors.affiliation: Hebei Agricultural University, Baoding 071001, China.
authors.forename: Bu
authors.initials: B
authors.lastname: Tao
authors.affiliation: College of Chemistry, Dalian University of Technology, Dalian 116024, China. Electronic address: yezq@dlut.edu.cn.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Ye
authors.affiliation: National Research Center for Environmental Analysis and Measurement, Beijing 100029, China.
authors.forename: Hu
authors.initials: H
authors.lastname: Zhao
authors.affiliation: National Research Center for Environmental Analysis and Measurement, Beijing 100029, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Ren
authors.affiliation: National Research Center for Environmental Analysis and Measurement, Beijing 100029, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Zhang
authors.affiliation: National Research Center for Environmental Analysis and Measurement, Beijing 100029, China.
authors.forename: Yeru
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. Electronic address: chenjp@dicp.ac.cn.
authors.forename: Jiping
authors.initials: J
authors.lastname: Chen
mesh_terms: D002273:Carcinogens / Q000032:analysis; D002681:China; D059029:Electronic Waste / Q000032:analysis; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry; D006801:Humans; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D018570:Risk Assessment; D012987:Soil; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D002273:Carcinogens; D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil; D012989:Soil Pollutants
keywords: Carcinogenic risk; Electronic waste; Guiyu; Polycyclic aromatic hydrocarbon; Sediment; Soil