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Analysis of ultra-short chain perfluoroalkyl substances in Swedish environmental waters
Örebro University, School of Science and Technology. (MTM Research Centre)ORCID iD: 0000-0002-6330-789X
Örebro University, School of Science and Technology. (MTM Research Centre)ORCID iD: 0000-0001-6800-5658
2017 (English)Report (Other academic)
Abstract [en]

The purpose of this study was to investigate the environmental occurrence of ultra-short chain perfluoroalkyl substances (PFASs) in Swedish water samples. So far established protocols have focused on measuring PFASs with a carbon chain length of four or more carbons. In this study, perfluoroalkyl sulfonates of chain lengths of two, perfluoroethane sulfonate (PFEtS), and three, perfluoropropane sulfonate (PFPrS), carbons have been measured using a newly established instrumental method employing supercritical fluid separation (SFC) coupled to tandem mass spectrometry detection.

A total of 26 samples were analysed, including ground water, surface water, rain water and snow. The sample locations included military and civilian airports, a former hard chromium plating facility, the vicinity of a hazardous waste management facility and background areas (lake surface water, rain and snow). Results show that both PFPrS and PFEtS could be detected in environmental samples using SFC separation coupled to triple quadrupole detection. Out of the 26 samples analysed, the ultra-short-chain PFPrS could be detected and quantified in 22 samples. The concentrations for PFPrS in all the samples ranged between 0.93 ng/l to 39 000 ng/l. The ultra-short-chain PFPEtS could be quantified in all of the 26 samples, with a concentration range between 0.07 and 5 700 ng/l. The highest concentrations represents highly contaminated ground water samples collected from a military airport. In the samples, PFPrS had a relative contribution to total PFAS concentration of 6 and 10 %, indicating the importance of measuring these compounds in environmental samples.

Place, publisher, year, edition, pages
Örebro, Sweden: Örebro university , 2017. , p. 18
Keywords [en]
Ultra-short chain PFAS, water
National Category
Analytical Chemistry Environmental Sciences
Research subject
Chemistry; Environmental Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-64607OAI: oai:DiVA.org:oru-64607DiVA, id: diva2:1178319
Funder
Swedish Environmental Protection Agency, 2219-16-030Available from: 2018-01-29 Created: 2018-01-29 Last updated: 2018-02-02Bibliographically approved

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