Perfluorinated sulfonate and carboxylate compounds and precursors in herring gull eggs from across the Laurentian Great Lakes of North America: Temporal and recent spatial comparisons and exposure implications
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- 作者：Robert J. Letchera ; robert.letcher@ec.gc.ca" class="auth_mail" title="E-mail the corresponding author ; Guanyong Sub ; SuG@ec.gc.ca" class="auth_mail" title="E-mail the corresponding author ; Jeremy N. Moorec ; Lisa L. Williamsc ; Pamela A. Martind ; Shane R. de Sollad ; William W. Bowermane
- 关键词：Perfluorinated carboxylic acids ; Perfluorinated sulfonates ; PFOS ; Herring gull ; Eggs ; Laurentian Great Lakes
- 刊名：Science of the Total Environment
- 出版年：2015
- 出版时间：15 December 2015
- 年：2015
- 卷：538
- 期：Complete
- 页码：468-477
- 全文大小：736 K
文摘
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Per-/poly-fluoroalkyl substances were determined in Great lakes herring gull eggs.
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C6, C8, C10 PFSAs, PFEtCHxS, and C7-14/C16 PFCAs were quantifiable in > 97% of eggs.
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危4PFSAs (> 90% PFOS) and 危9PFCAs ranged from 44-740 and 4.8-118 ng/g ww.
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危4PFSA showed an increasing trend from the northwest to the southeast colonies.
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PFOS in some egg samples were greater than lowest observed effect concentrations.