Temporal variations of perfluoroalkyl substances and polybrominated diphenyl ethers in alpine snow.
Temporal variations of perfluoroalkyl substances and polybrominated diphenyl ethers in alpine snow.
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DOI：
10.1016/j.envpol.2013.03.043
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发表时间：
2013-07
影响因子：
8.9
通讯作者：
T. Kirchgeorg;Annekatrin Dreyer;J. Gabrieli;N. Kehrwald;M. Sigl;M. Schwikowski;C. Boutron;A. Gambaro;C. Barbante;R. Ebinghaus
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文献类型：
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作者：
T. Kirchgeorg;Annekatrin Dreyer;J. Gabrieli;N. Kehrwald;M. Sigl;M. Schwikowski;C. Boutron;A. Gambaro;C. Barbante;R. Ebinghaus
在罗莎山（海拔4455米）格尼菲蒂学院10米浅层岩心中调查了18种全氟烷基物质（PFASs）和8种多溴联苯醚（PBDEs）在欧洲阿尔卑斯山脉的发生和时间变化。公司核心包括1997-2007年。采用液相色谱-串联质谱法（PFASs）和气相色谱-质谱法（PBDEs）对核心切片进行分析。我们在样品中检测到12种PFASs和8种PBDEs。全氟丁酸（PFBA; 0.3-1.8 ng L−1）和全氟辛酸（PFOA; 0.2-0.6 ng L−1）是主要的全氟辛酸，BDE 99 （< MQL-4.5 ng L−1）和BDE 47 （n.d - 2.6 ng L−1）是主要的多溴联苯醚。本研究证实了欧洲阿尔卑斯地区存在全氟辛烷和多溴二苯醚，并首次提供了全氟辛烷成分可能正在向全氟辛烷为主的成分转变的证据。
The occurrence and temporal variation of 18 perfluoroalkyl substances (PFASs) and 8 polybrominated diphenyl ethers (PBDEs) in the European Alps was investigated in a 10 m shallow firn core from Colle Gnifetti in the Monte Rosa Massif (4455 m above sea level). The firn core encompasses the years 1997–2007. Firn core sections were analyzed by liquid chromatography–tandem mass spectrometry (PFASs) and gas chromatography–mass spectrometry (PBDEs). We detected 12 PFASs and 8 PBDEs in the firn samples. Perfluorobutanoic acid (PFBA; 0.3–1.8 ng L−1) and perfluorooctanoic acid (PFOA; 0.2–0.6 ng L−1) were the major PFASs while BDE 99 (<MQL–4.5 ng L−1) and BDE 47 (n.d.–2.6 ng L−1) were the major PBDEs. This study demonstrates the occurrence of PFASs and PBDEs in the European Alps and provides the first evidence that PFASs compositions may be changing to PFBA-dominated compositions.