title: Levels of PCDD/Fs and DL-PCBs in selected foods and estimated dietary intake for the local residents of Luqiao and Yuhang in Zhejiang, China.
abstract: Polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) were measured by high resolution gas chromatograph/high resolution mass spectrometer (HRGC/HRMS) in six food groups from Luqiao (LQ) where the e-waste has been recycled and from Yuhang (YH) where the agriculture dominates in Zhejiang Province in China. The total WHO-TEQ values of PCDD/Fs and DL-PCBs in selected foods from LQ were significantly much higher than those from YH. The highest level of the total WHO-TEQ was in crucian carp (10.87 pg g(-1) w.w.) followed by duck (3.77 pg g(-1) w.w.), hen eggs (2.80 pg g(-1) w.w.), chicken (2.43 pg g(-1) w.w.), rice (0.08 pg g(-1) w.w.) and vegetables (0.022 pg g(-1) w.w.) in LQ. By contrast, the highest levels were measured in duck (0.74 pg g(-1) w.w.) followed by hen eggs (0.69 pg g(-1) w.w.), crucian carp (0.55 pg g(-1) w.w.), chicken (0.44 pg g(-1) w.w.), vegetables (0.002 pg g(-1) w.w.) and rice (0.0002 pg g(-1) w.w.) in YH, respectively. The monthly intake of PCDD/Fs and DL-PCBs for the local residents was 401.75 pg WHO-TEQ g(-1) w.w. in LQ, which is above the provisional tolerable monthly intake (PTMI) set by the Joint FAO/WHO Expert Committee on Food Additives (JECFA). We determined a monthly intake of 37.13 pg WHO-TEQ g(-1)w.w. in YH, which is below the PTMI. Crucian carp was the predominant contributor to the estimated monthly intake (EMI), accounting for 67.74% and 36.51% in LQ and YH, respectively. High levels of PCDD/Fs and DL-PCBs in selected foods indicate severe contamination of these pollutants in the e-waste recycling site.
authors.affiliation: Zhejiang Academy of Medical Sciences, 182 Tianmushan Road, Hangzhou 310013, China. sygp_0@163.com
authors.forename: Yang
authors.initials: Y
authors.lastname: Song
authors.forename: Nanxiang
authors.initials: N
authors.lastname: Wu
authors.forename: Jianlong
authors.initials: J
authors.lastname: Han
authors.forename: Haitao
authors.initials: H
authors.lastname: Shen
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Tan
authors.forename: Gangqiang
authors.initials: G
authors.lastname: Ding
authors.forename: Juxiang
authors.initials: J
authors.lastname: Xiang
authors.forename: He
authors.initials: H
authors.lastname: Tao
authors.forename: Shunliang
authors.initials: S
authors.lastname: Jin
mesh_terms: D001572:Benzofurans / Q000032:analysis*; D002681:China; D000072338:Dibenzofurans, Polychlorinated; D004147:Dioxins; D004531:Eggs / Q000032:analysis; D004785:Environmental Pollutants / Q000032:analysis*; D005396:Fish Products / Q000032:analysis; D005504:Food Analysis; D005506:Food Contamination; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D008461:Meat Products / Q000032:analysis; D012275:Oryza / Q000737:chemistry; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D014675:Vegetables / Q000737:chemistry
chemical_list: D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D004147:Dioxins; D004785:Environmental Pollutants; D000072317:Polychlorinated Dibenzodioxins; D011078:Polychlorinated Biphenyls