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Marine halogenated natural products of environmental relevance.

机译:与环境有关的船用卤化天然产物。

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A wide range and steadily increasing number of halogenated natural products (HNPs) is detected in marine organisms that are not the natural source of these compounds but which have accumulated these HNPs in a similar way as known to occur with anthropogenic halogenated pollutants such as PCBs and DDT. The HNPs have aromatic, aliphatic, and heterocyclic spines and are brominated, chlorinated, or mixed halogenated (Cl and Br). The exact isomer structures of HNPs are often closely related to the anthropogenic POPs, and for some compounds both natural and anthropogenic sources are likely to exist. Some of the HNPs are nonpolar, persistent, and can thus be found even in marine mammals and birds of prey. The most important HNPs detected in top predators are halogenated 1,1'-dimethyl-2,2'-bipyrroles (HDBPs), the heptachloro-1'-methyl-1,2'-bipyrrole Q1, the tetrabromophenoxyanisole isomers 6-MeO-BDE 47 and 2'-MeO-BDE 68, and related compounds. Each of these compounds has been detected in higher trophic biota with concentrations exceeding 1 mg/kg.
机译:在不是这些化合物天然来源的海洋生物中检测到范围广泛且稳定增长的卤化天然产物(HNP),这些海洋生物以与已知的人为卤化污染物(如PCBs和滴滴涕HNP具有芳族,脂族和杂环刺,并且被溴化,氯化或混合卤化(Cl和Br)。 HNP的确切异构体结构通常与人为持久性有机污染物密切相关,对于某些化合物,自然和人为来源都可能同时存在。一些HNP是非极性的,持久性的,因此即使在海洋哺乳动物和猛禽中也可以发现。在顶级捕食者中检测到的最重要的HNP是卤代的1,1'-二甲基-2,2'-联吡咯(HDBPs),七氯-1'-甲基-1,2'-联吡咯Q1,四溴苯氧基苯甲醚异构体6-MeO- BDE 47和2'-MeO-BDE 68,以及相关化合物。这些化合物中的每一种都已在营养较高的生物区系中被检测出,浓度超过1 mg / kg。

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