摘要
本文分析了从法罗群岛收集的管鼻鹱(Fulmarus glacialis)蛋中36种羟基多氯联苯类(OH-PCIs)衍生物。定量了19个样品中丰度最大的7种衍生物,∑OH-PCB总浓度变幅在0.92～4.0ng/g鲜重(fw.)之间。这些蛋类至少构成了一部分法罗群岛人传统饮食的一部分,而且可能导致了法罗群岛孕妇血液中这些污染物高水平的出现。因为这些代谢物出现于未经孵化的管鼻鹱的蛋中,可以断定在下蛋之前OH-PCB类就转移到了蛋中。在管鼻鹱蛋中检测到的3300～18000ng/g脂重(l.w.)的高水平的多氯联苯总浓度(ΣPCB),是相当重要的人体暴露源。高水平的PCB是羟基化PCB的代谢形成的来源之一。
Thirty-six polycnlorinated biphenylols (OH-PCBs) congeners were characterized in Fulmar (Fulmarus glacialis) eggs collected from the Faroe Islands. The seven most abundant congeners were quantified in 19 samples, and the ROH-PCB concentrations ranged between 0.92 and 4.0 ng g 1 fresh weight (f.w.). These eggs constitute a part of the traditional diet for at least a part of the population on the Faroe Islands and may contribute to the high levels of these contaminants found in the blood of pregnant Faroese women. Because the metabolites are present in the nonhatched fulmar egg, it is concluded that the OH-PCBs are transferred to the egg before laying. High levels, 3300-18 000 ng g-1 l.w., of Rpolychlorinated biphenyls (PCB) were determined in the fulmar eggs, which are a considerable source for human exposure. The high PCB levels are a source for metabolic formation of hydroxylated PCBs.
