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首页> 外文期刊>Environmental Science & Technology >Longitudinal and Latitudinal Distribution of Perfluoroalkyl Compounds in the Surface Water of the Atlantic Ocean
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Longitudinal and Latitudinal Distribution of Perfluoroalkyl Compounds in the Surface Water of the Atlantic Ocean

机译：全氟烷基化合物在大西洋地表水中的纵向和横向分布

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摘要

Perfluoroalkyl compounds (PFCs) were determined in 2 L surface water samples collected in the Atlantic Ocean onboard the research vessels Maria S. Merian along the longitudinal gradient from Las Palmas (Spain) to St. Johns (Canada) (15° W to 52° W) and Polarstern along the latitudinal gradient from the Bay of Biscay to the South Atlantic Ocean (46° N to 26° S) in spring and fall 2007, respectively. After filtration the dissolved and particulate phases were extracted separately, and PFC concentrations were determined using high-performance liquid chromatography interfaced to tandem mass spectrometry. No PFCs were detected in the particulate phase. This study provides the first concentration data of perfluorooctanesulfona-mide (FOSA), perfluorohexanoic acid, and perfluoroheptanoic acid from the Atlantic Ocean. Results indicate that trans-Atlantic Ocean currents caused the decreasing concentration gradient from the Bay of Biscay to the South Atlantic Ocean and the concentration drop-off close to the Labrador Sea. Maximum concentrations were found for FOSA, perf luorooctanesulfonate, and perfluorooctanoic acid at 302, 291, and 229 pg L~(-1), respectively. However, the concentration of each single compound was usually in the tens of picograms per liter range. South of the equator only FOSA and below 4° S no PFCs could be detected.
机译：在研究船玛丽亚·梅里安（Maria S. Merian）沿大西洋从西班牙拉斯帕尔马斯（Las Palmas）（西班牙）至圣约翰斯（加拿大）（15°W至52° W）和Polarstern分别于2007年春季和秋季从比斯开湾到南大西洋（46°N至26°S）的纬度梯度。过滤后，分别提取溶解相和颗粒相，并使用与串联质谱联用的高效液相色谱法测定PFC浓度。在颗粒相中未检测到PFC。这项研究提供了来自大西洋的全氟辛烷磺酰胺（FOSA），全氟己酸和全氟庚酸的第一浓度数据。结果表明，跨大西洋的洋流引起了从比斯开湾到南大西洋的浓度梯度减小，以及靠近拉布拉多海的浓度下降。 FOSA，全氟辛烷磺酸和全氟辛酸的最大浓度分别为302、291和229 pg L〜（-1）。但是，每种单一化合物的浓度通常在数十皮克/升的范围内。在赤道以南，只有FOSA且低于4°S，无法检测到PFC。

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  • 来源
    《Environmental Science & Technology》 |2009年第9期|3122-3127|共6页
  • 作者

    LUTZ AHRENS; JONATHAN L. BARBER; ZHIYONG XIE; RALF EBINGHAUS;

  • 作者单位

    Department for Environmental Chemistry, Institute for Coastal Research, GKSS Research Centre Geesthacht, Max-Planck-Strasse I, DE-21502 Geesthacht, Germany Institute for Ecology and Environmental Chemistry, Faculty of Environment and Technique, Leuphana University of Luneburg, DE-21335 Lueneburg, Germany;

    Centre for Chemicals Management, Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom Cefas Lowestoft Laboratory, Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 OHT, U.K.;

    Department for Environmental Chemistry, Institute for Coastal Research, GKSS Research Centre Geesthacht, Max-Planck-Strasse 1, DE-21502 Geesthacht, Germany;

    Department for Environmental Chemistry, Institute for Coastal Research, GKSS Research Centre Geesthacht, Max-Planck-Strasse 1, DE-21502 Geesthacht, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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