Per- and polyfluoroalkyl substances (PFASs) in water samples from POLARSTERN cruise PS114@en

Legacy and emerging per- and polyfluoroalkyl substances (PFASs) were measured in water samples from the Polarstern expedition PS114 (ARK-XXXII/1), which took place from July 11th to August 3rd 2018. Using the ship's seawater intake system, surface water samples were collected along a latitudinal transect from the European continent to the Arctic (57°N to 79°N at ∼5°E) and a longitudinal and latitudinal transect within Fram Strait (9°E to 18°W at ∼79°N and 78°N to 80°N at ∼0°EW). Additionally, water was collected from different depths of the water column (5 to 3117 m) at seven stations in Fram Strait. Samples were prepared using solid-phase extraction (SPE) and analysed by liquid chromatography coupled to a triple quadrupole tandem mass spectrometer (LC-MS/MS). More information can be found in Joerss et al. (2020). The aim of the study was to investigate occurrence, distribution, transport and sources of legacy and emerging PFAS in the Atlantic gateway to the Arctic Ocean.本研究对2018年7月11日至8月3日开展的极星号（Polarstern）PS114（ARK-XXXII/1）科考航次采集的海水样品中的持久性与新型全氟和多氟烷基物质（per- and polyfluoroalkyl substances, PFASs）进行了检测。研究借助科考船海水取水系统，沿从欧洲大陆至北极的纬向断面（约5°E，57°N至79°N）以及弗拉姆海峡（Fram Strait）内的经-纬向断面（约79°N处9°E至18°W，约0°经向处78°N至80°N）采集表层海水样品；此外，在弗拉姆海峡的7个站位采集了不同水柱深度（5米至3117米）的海水样品。样品采用固相萃取（solid-phase extraction, SPE）进行前处理，并通过液相色谱-三重四极杆串联质谱联用仪（liquid chromatography coupled to a triple quadrupole tandem mass spectrometer, LC-MS/MS）完成分析。更多详细信息可参见Joerss等人（2020）的研究成果。本研究旨在探究北极大西洋门户区域内持久性与新型全氟和多氟烷基物质的赋存状态、分布特征、迁移过程及其来源。