کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4427343 1309154 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Maternal transfer of organohalogen contaminants and metabolites to eggs of Arctic-breeding glaucous gulls
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Maternal transfer of organohalogen contaminants and metabolites to eggs of Arctic-breeding glaucous gulls
چکیده انگلیسی

Eggs of seabirds have routinely been used as indicators of environmental pollution in the Arctic. However, the variability in organohalogen concentration and composition associated with the laying sequence, have not been defined. We examined a suite of PCBs, organochlorine (OC) pesticides and by-products, polybrominated diphenyl ethers (PBDEs), polybrominated biphenyls (PBBs) and methylsulfonyl- (MeSO2) PCBs in complete 3-egg clutches of glaucous gulls (Larus hyperboreus), and plasma samples of the laying females collected from the Norwegian Arctic. ∑PCB, ∑OC and ∑PBDE, but not ∑MeSO2-PCB, concentrations in eggs were positively associated, with increasing magnitude and significance from the first through the last-laid egg, with concentrations in female plasma. However, the concentrations of these organohalogen classes fluctuated irrespective of the laying order in the clutch. In general, maternal transfer favored low Kow and/or less persistent compounds, whereas the recalcitrant and/or higher-halogenated compounds were less readily transferred, and consequently more selectively retained in the mother.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 144, Issue 3, December 2006, Pages 1053–1060
نویسندگان
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