title: PCBs levels and indicator congeners in children's and adolescents' hair.
abstract: Thirty polychlorinated biphenyl (PCB) congeners were determined in the hair samples collected from children (4-12) and adolescents (13-18) of Changchun city, Northeastern China. The mean concentrations of total PCBs and dioxin-like PCBs (dl-PCBs) in the adolescents' hair samples were 161.0 ng g(-1) and 61.7 ng g(-1), which were relatively higher than 43.7 ng g(-1) and 14.6 ng g(-1) in the children's ones. Considering gender difference, the mean concentrations in the girls' hair samples were approximately two times higher than those in the boys' ones for most PCB congeners. The pentachlorinated biphenyl was the dominant homologue. It was found that the levels of total PCBs and dl-PCBs were highly correlated with PCB 118 level in the children's hair samples, and with PCB 114 level in the adolescents' ones. The result demonstrated that the two PCB congeners could be applied as the indicators to evaluate the concentrations of total PCBs and dl-PCBs in children's and adolescents' hair, respectively.
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, Peoples Republic of China.
authors.forename: Baocui
authors.initials: B
authors.lastname: Liang
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, Peoples Republic of China. Electronic address: xhliu@bnu.edu.cn.
authors.forename: Xinhui
authors.initials: X
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, Peoples Republic of China.
authors.forename: Jing
authors.initials: J
authors.lastname: Hou
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, Peoples Republic of China.
authors.forename: Gang
authors.initials: G
authors.lastname: Liang
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, Peoples Republic of China.
authors.forename: Wenwen
authors.initials: W
authors.lastname: Gong
authors.affiliation: Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, Peoples Republic of China.
authors.forename: Diandou
authors.initials: D
authors.lastname: Xu
authors.affiliation: Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, Peoples Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D002648:Child; D002681:China; D004781:Environmental Exposure / Q000032:analysis / Q000706:statistics & numerical data*; D004785:Environmental Pollutants / Q000032:analysis* / Q000378:metabolism; D004787:Environmental Pollution / Q000706:statistics & numerical data; D005260:Female; D006197:Hair / Q000737:chemistry* / Q000378:metabolism; D006801:Humans; D008297:Male; D011078:Polychlorinated Biphenyls / Q000032:analysis* / Q000378:metabolism
chemical_list: D004785:Environmental Pollutants; D011078:Polychlorinated Biphenyls
keywords: Human hair; Indicator; Polychlorinated biphenyl (PCB); Source