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Levels and Seasonal...
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Björnsdotter, Maria,1989-Örebro universitet,Institutionen för naturvetenskap och teknik,Man-Technology-Environment Research Centre (MTM)
(author)
Levels and Seasonal Trends of C1-C4 Perfluoroalkyl Acids and the Discovery of Trifluoromethane Sulfonic Acid in Surface Snow in the Arctic
- Article/chapterEnglish2021
Publisher, publication year, extent ...
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2021-11-15
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American Chemical Society (ACS),2021
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:oru-95441
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https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-95441URI
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https://doi.org/10.1021/acs.est.1c04776DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Funding agencies:British National Environmental Research CouncilOxford Doctoral Training Partnership in Environmental ResearcNE/L002612/1Burdett-Coutts TrustSvalbard Science Forum Arctic Field Grant 2019 11121Research Council of Norway 196218/S30 Fram Centre Flagship program (PharmArctic) 534/75219Knowledge Foundation (Enforce Research Project) 20160019
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C1-C4 perfluoroalkyl acids (PFAAs) are highly persistent chemicals that have been found in the environment. To date, much uncertainty still exists about their sources and fate. The importance of the atmospheric degradation of volatile precursors to C1-C4 PFAAs were investigated by studying their distribution and seasonal variation in remote Arctic locations. C1-C4 PFAAs were measured in surface snow on the island of Spitsbergen in the Norwegian Arctic during January-August 2019. Trifluoroacetic acid (TFA), perfluoropropanoic acid (PFPrA), perfluorobutanoic acid (PFBA), and trifluoromethane sulfonic acid (TFMS) were detected in most samples, including samples collected at locations presumably receiving PFAA input solely from long-range processes. The flux of TFA, PFPrA, PFBA, and TFMS per precipitation event was in the ranges of 22-1800, 0.79-16, 0.19-170, and 1.5-57 ng/m2, respectively. A positive correlation between the flux of TFA, PFPrA, and PFBA with downward short-wave solar radiation was observed. No correlation was observed between the flux of TFMS and solar radiation. These findings suggest that atmospheric transport of volatile precursors and their subsequent degradation plays a major role in the global distribution of C2-C4 perfluoroalkyl carboxylic acids and their consequential deposition in Arctic environments. The discovery of TFMS in surface snow at these remote Arctic locations suggests that TFMS is globally distributed. However, the transport mechanism to the Arctic environment remains unknown.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Hartz, William F.Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, United Kingdom; Department of Arctic Geology, University Centre in Svalbard (UNIS), Longyearbyen, Svalbard, Norway
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Kallenborn, RolandFaculty of Chemistry, Biotechnology and Food Sciences (KBM), Norwegian University of Life Sciences (NMBU), Ås, Norway; Department of Arctic Technology, University Centre in Svalbard (UNIS), Longyearbyen, Svalbard, Norway
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Ericson Jogsten, Ingrid,1980-Örebro universitet,Institutionen för naturvetenskap och teknik,Man-Technology-Environment Research Centre (MTM(Swepub:oru)iden
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Humby, Jack D.Ice Dynamics and Paleoclimate, British Antarctic Survey, High Cross, Cambridge, United Kingdom
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Kärrman, Anna,1975-Örebro universitet,Institutionen för naturvetenskap och teknik,Man-Technology-Environment Research Centre (MTM)(Swepub:oru)ankn
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Yeung, Leo W. Y.,1981-Örebro universitet,Institutionen för naturvetenskap och teknik,Man-Technology-Environment Research Centre (MTM)(Swepub:oru)lyg
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Örebro universitetInstitutionen för naturvetenskap och teknik
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Related titles
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In:Environmental Science and Technology: American Chemical Society (ACS)55:23, s. 15853-158610013-936X1520-5851
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