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.

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.

[1]  Gaofeng Zhao,et al.  PCBs and OCPs in human milk and selected foods from Luqiao and Pingqiao in Zhejiang, China. , 2007, The Science of the total environment.

[2]  Yongning Wu,et al.  Levels and congener profiles of PCDD/Fs, PCBs and PBDEs in seafood from China. , 2009, Chemosphere.

[3]  Shaw Watanabe,et al.  Effects of dioxins on human health: a review. , 1999, Journal of epidemiology.

[4]  Sheng Wen,et al.  Elevated levels of urinary 8-hydroxy-2'-deoxyguanosine in male electrical and electronic equipment dismantling workers exposed to high concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans, polybrominated diphenyl ethers, and polychlorinated biphenyls. , 2008, Environmental science & technology.

[5]  D. Costopoulou,et al.  Levels of dioxins and dioxin-like PCBs in food samples on the Greek market. , 2004, Chemosphere.

[6]  Guonian Zhu,et al.  Polychlorinated dibenzo-p-dioxins/furans and polychlorinated biphenyls in fresh fishes from Qiantangjiang River, China. , 2007, Chemosphere.

[7]  Safe,et al.  Toxic equivalency factors (TEFs) for PCBs, PCDDs, PCDFs for humans and wildlife. , 1998, Environmental health perspectives.

[8]  Julian Scott Yeomans,et al.  The challenge of hazardous waste management in a sustainable environment: insights from electronic recovery laws , 2005 .

[9]  Qinghua Zhang,et al.  Evidence for the transfer of polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans from soil into biota. , 2006, The Science of the total environment.

[10]  A. Schecter,et al.  Intake Of Dioxins and Related Compounds from Food in the U.S. Population , 2001, Journal of toxicology and environmental health. Part A.

[11]  P. Liao,et al.  High average daily intake of PCDD/Fs and serum levels in residents living near a deserted factory producing pentachlorophenol (PCP) in Taiwan: influence of contaminated fish consumption. , 2006, Environmental pollution.

[12]  M. Storelli,et al.  Residues of polychlorinated biphenyls in edible fish of the Adriatic Sea: assessment of human exposure. , 2007, Journal of food science.

[13]  A. Monjonell,et al.  Evaluation of an automated clean-up system for the isotope-dilution high-resolution mass spectrometric analysis of PCB, PCDD, and PCDF in food , 2001, Fresenius' journal of analytical chemistry.

[14]  Wei Huang,et al.  Concentrations of PCDD/PCDFs and PCBs in retail foods and an assessment of dietary intake for local population of Shenzhen in China. , 2008, Environment international.

[15]  Ming Hung Wong,et al.  Dietary exposure to PCBs based on food consumption survey and food basket analysis at Taizhou, China--the world's major site for recycling transformers. , 2010, Chemosphere.

[16]  Y. Ling,et al.  A total diet study to estimate PCDD/Fs and dioxin-like PCBs intake from food in Taiwan. , 2007, Chemosphere.

[17]  M. Kawano,et al.  PCBs and organochlorine pesticides (OCPs) in edible fish and shellfish from China. , 2006, Chemosphere.

[18]  T. Vartiainen,et al.  Market basket study on dietary intake of PCDD/Fs, PCBs, and PBDEs in Finland. , 2004, Environment international.

[19]  Long-Full Lin,et al.  Human dietary exposure to polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in Taiwan. , 2009, Journal of hazardous materials.

[20]  Tsuyoshi Okazawa,et al.  Health risk assessment for polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and dibenzofurans, and polychlorinated naphthalenes in seafood from Guangzhou and Zhoushan, China. , 2007, Environmental pollution.

[21]  P. Brandt,et al.  Evaluation of certain food additives. Joint FAO/WHO Expert Committee on Food Additives. Fifty-ninth report of the JECFA, nitrate and nitrite , 2002 .

[22]  Yongning Wu,et al.  Polychlorinated dibenzo-p-dioxin and dibenzofuran concentrations in common fish species in the Pearl River Delta area, China. , 2007, Chemosphere.

[23]  S. Horii,et al.  Estimation of 1999-2004 dietary daily intake of PCDDs, PCDFs and dioxin-like PCBs by a total diet study in metropolitan Tokyo, Japan. , 2006, Chemosphere.

[24]  E. Abad,et al.  Survey of persistent organochlorine contaminants (PCBs, PCDD/Fs, and PAHs), heavy metals (Cu, Cd, Zn, Pb, and Hg), and arsenic in food samples from Huelva (Spain): levels and health implications. , 2004, Journal of agricultural and food chemistry.

[25]  Yongning Wu,et al.  Dietary intake of polychlorinated dioxins, furans and dioxin-like polychlorinated biphenyls from foods of animal origin in China , 2007, Food additives and contaminants.

[26]  P. Furst,et al.  Exposure of populations to dioxins and related compounds , 2000, Food additives and contaminants.

[27]  Y. Aoki.  Polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans as endocrine disrupters--what we have learned from Yusho disease. , 2001, Environmental research.

[28]  P. Liao,et al.  Elevated PCDD/F levels and distinctive PCDD/F congener profiles in free range eggs. , 2010, Journal of agricultural and food chemistry.

[29]  P. Liao,et al.  High variation of PCDDs, PCDFs, and dioxin-like PCBs ratio in cooked food from the first total diet survey in Taiwan. , 2008, Chemosphere.

[30]  Guibin Jiang,et al.  E-waste recycling induced polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and dibenzo-furans pollution in the ambient environment. , 2008, Environment international.

[31]  T Hori,et al.  Update of daily intake of PCDDs, PCDFs, and dioxin-like PCBs from food in Japan. , 2001, Chemosphere.

[32]  K. Schramm,et al.  Bioaccumulation of polychlorinated dibenzo-p-dioxins and dibenzofurans in the foodweb of Ya-Er Lake area, China. , 2001, Water research.

[33]  Janet Kit Yan Chan,et al.  Environmental impact and human exposure to PCBs in Guiyu, an electronic waste recycling site in China. , 2009, Environment international.

[34]  Gregory Giuliani,et al.  E-waste, the hidden side of IT equipment's manufacturing and use , 2005 .

[35]  W Farland,et al.  Dioxins: WHO's tolerable daily intake (TDI) revisited. , 2000, Chemosphere.