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  • Title: [Dietary intake of non-dioxin-like polychlorinated biphenyls (PCB) in Bavaria, Germany. Results from the Integrated Exposure Assessment Survey (INES)].
    Author: Fromme H, Shahin N, Boehmer S, Albrecht M, Parlar H, Liebl B, Mayer R, Bolte G.
    Journal: Gesundheitswesen; 2009 May; 71(5):275-80. PubMed ID: 19294617.
    Abstract:
    Polychlorinated biphenyls (PCB) were widely used in numerous industrial and commercial applications in high quantities in the past. Based on their persistence in the environment, their tendency to accumulate in the organism and their specific health effects, PCBs have to be assessed as critical substances. Because the dietary intake was assumed to be the main intake route, the Integrated Exposure Assessment Survey (INES) aimed to measure the recent exposure to PCBs in Germany. The study consisted of 10 female and 10 male participants living in Munich and surroundings. The participants collected dietary duplicates of all food consumed and prepared as for consumption over 7 consecutive days. Altogether the 6 non-dioxin-like PCB congeners 28, 52, 101, 138, 153 and 180 ndl-PCB or, respectively, indicator PCB and furthermore the congener 118 were detected using a gas chromatographic method. Dietary intake was calculated using the amount of food eaten daily and the results from the duplicates. Using the sum of PCB 138, 153 and 180 multiplied by 4, the daily intake ranged from 4.0 to 24.1 ng/kg b.w. (median: 9.5 ng/kg b.w.). On the contrary, the daily intake was 2.9 to 20.6 ng/kg b.w. (median: 11.2 ng/kg b.w.) if the sum of the 6 indicator PCBs multiplied by factor 2 was used for quantification. No sex-related difference of the dietary intake was observable. Overall, it can be concluded that the dietary PCB intake has further decreased in the last years in Germany. At present, the toxicological database is not suitable to assess the risks coming solely from the non-dioxin-like PCBs because it is not possible to differentiate between non dioxin-like and dioxin-like effects in toxicological studies. Nevertheless, a further reduction of PCB exposure via food by searching for possible sources is needed.
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