[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.