Utilizing Pine Needles to Temporally and Spatially Profile Per- and Polyfluoroalkyl Substances (PFAS).
Utilizing Pine Needles to Temporally and Spatially Profile Per- and Polyfluoroalkyl Substances (PFAS).
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利用松针对全氟烷基物质和多氟烷基物质 (PFAS) 进行时间和空间分析。
DOI：
10.1021/acs.est.1c06483
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发表时间：
2022-03-15
影响因子：
11.4
通讯作者：
Belcher, Scott M.
中科院分区：
文献类型：
--
作者：
Kirkwood, Kaylie, I;Fleming, Jonathon;Nguyen, Helen;Reif, David M.;Baker, Erin S.;Belcher, Scott M.
关键词：
随着对全氟烷基和多氟烷基物质（PFAS）暴露的关注不断增加，非常需要监测其存在和修饰的新方法，因为一些具有已知的毒性和生物累积特性，而大多数具有未知的影响。然而，这项任务并不简单，因为截至2020年9月，美国环境保护署（EPA）的CompTox PFAS清单包含9000多种物质，并且还在不断添加其他物质。因此，非靶向分析对于调查这一庞大的可能PFAS清单的存在至关重要。在这里，我们利用存档和现场采样的松针作为广泛可用的被动采样器和一种新的非靶向，多维分析方法耦合液相色谱，离子迁移谱和质谱（LC-IMS-MS），以评估时间和空间存在的众多PFAS。在这项研究的松针中检测到超过70种全氟辛烷磺酸，包括传统监测的传统全氟烷基酸（PFAA）及其新出现的替代品，如氯化衍生物、超短链全氟烷基酸、全氟烷基醚酸（包括六氟环氧丙烷二聚酸（HFPO-DA，“GenX”）和Nafion副产物2）以及环状全氟辛烷磺酸（PFOS）类似物。这项研究的结果提供了关键的见解有关PFAS的运输，污染和减少在过去的六十年的努力。
As concerns over exposure to per- and polyfluoroalkyl substances (PFAS) are continually increasing, novel methods to monitor their presence and modifications are greatly needed, as some have known toxic and bioaccumulative characteristics while most have unknown effects. This task however is not simple, as the Environmental Protection Agency (EPA) CompTox PFAS list contains more than 9000 substances as of September 2020 with additional substances added continually. Nontargeted analyses are therefore crucial to investigating the presence of this immense list of possible PFAS. Here, we utilized archived and field-sampled pine needles as widely available passive samplers and a novel nontargeted, multidimensional analytical method coupling liquid chromatography, ion mobility spectrometry, and mass spectrometry (LC-IMS-MS) to evaluate the temporal and spatial presence of numerous PFAS. Over 70 PFAS were detected in the pine needles from this study, including both traditionally monitored legacy perfluoroalkyl acids (PFAAs) and their emerging replacements such as chlorinated derivatives, ultrashort chain PFAAs, perfluoroalkyl ether acids including hexafluoropropylene oxide dimer acid (HFPO–DA, “GenX”) and Nafion byproduct 2, and a cyclic perfluorooctanesulfonic acid (PFOS) analog. Results from this study provide critical insight related to PFAS transport, contamination, and reduction efforts over the past six decades.
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影响因子：
11.4
作者：
Galloway, Jason E.;Moreno, Anjelica V. P.;Weavers, Linda K.
通讯作者：
Weavers, Linda K.
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通讯作者：
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