[Dietary intake of PHAHs and cancer risk evaluation for residents living in the e-waste disassembly sites].
This study was conducted to estimate the lifetime average daily dose (LADDs) and the cumulative cancer risk of PBBs, PBDEs, and PCBs for local residents living in four e-waste disassembly sites and a control site in the Zhejiang Province of China. A total of 191 food samples (including seven food groups and drinking water) were obtained, and the concentrations of the three PHAHs were measured by GC/MS 5975B. The estimated LADDs of PHAHs in the disassembly sites were approximately 2-3 times higher than those in the control site. Among different food groups, LADDs of the three PHAHs through rice consumption accounted for more than 48% of the total cumulative dose. The estimated cumulative cancer risk was 3.81 x 10(-4) for residents living in the disassembly sites, which was about two fold higher than those for the people living in the control site (1.50 x 10(-4)). The results showed that rice consumption was the principal exposure pathway for the intakes of PHAHs, dioxin-like PCBs were the major contributors for the cumulative cancer risks, which accounts for 45% of the total cancer risks.
Zhao
Gao-feng
GF
State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Wang
Zi-jian
ZJ
D002274:Carcinogens, Environmental / Q000032:analysis; D002681:China; D004581:Electronics; D004785:Environmental Pollutants / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis; D006801:Humans; D007220:Industrial Waste; D011075:Polybrominated Biphenyls / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis; D018570:Risk Assessment
D002274:Carcinogens, Environmental; D004785:Environmental Pollutants; D055768:Halogenated Diphenyl Ethers; D007220:Industrial Waste; D011075:Polybrominated Biphenyls; D011078:Polychlorinated Biphenyls