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Toward a Comprehensive Global Emission Inventory of C-4-C-10 Perfluoroalkanesulfonic Acids (PFSAs) and Related Precursors: Focus on the Life Cycle of C-6- and C-10-Based Products
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för miljövetenskap och analytisk kemi.ORCID-id: 0000-0002-7035-8660
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Antal upphovsmän: 52019 (Engelska)Ingår i: Environmental Science and Technology Letters, E-ISSN 2328-8930, Vol. 6, nr 1, s. 1-7Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A first global emission inventory of C-4-C-10 perfluoroalkanesulfonic acids (PFSAs) released during the life cycle of perfluorohexanesulfonyl fluoride (PHxSF)- and perfluorodecanesulfonyl fluoride (PDSF)-based products is presented. This study complements previous research on emissions of PFSAs that focused largely on the life cycle of perfluorooctanesulfonyl fluoride (POSF) and its derivatives. It reviews and integrates existing information about the life cycle of PHxSF, PDSF, and their derivatives; the limited data available in the public domain point to potentially significant global production, uses, and releases of these substances. Between 1958 and 2015, ranges of total emissions of perfluorohexanesulfonic acid (PFHxS) and perfluorodecanesulfonic acid (PFDS) are estimated to be 120-1022 and 38-378 metric tons, respectively. With the new emission estimates as inputs in a global multimedia environmental fate model (CliMoChem), the model-derived environmental concentrations well capture the reported field concentrations, providing strong support for the plausibility of the developed emission inventories. The results highlight the ongoing environmental exposure to these substances and the need for more detailed data in the public domain about their production levels and uses.

Ort, förlag, år, upplaga, sidor
2019. Vol. 6, nr 1, s. 1-7
Nationell ämneskategori
Geovetenskap och miljövetenskap
Identifikatorer
URN: urn:nbn:se:su:diva-165774DOI: 10.1021/acs.estlett.8b00531ISI: 000455557800001OAI: oai:DiVA.org:su-165774DiVA, id: diva2:1292965
Tillgänglig från: 2019-03-01 Skapad: 2019-03-01 Senast uppdaterad: 2019-12-12Bibliografiskt granskad

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Cousins, Ian T.
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Institutionen för miljövetenskap och analytisk kemi
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Environmental Science and Technology Letters
Geovetenskap och miljövetenskap

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