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Per- and polyfluoro...
Per- and polyfluoroalkyl substances (PFAS) in white-tailed sea eagle eggs from Sweden: Temporal trends (1969-2021), spatial variations, fluorine mass balance, and suspect screening
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- Haque, Faiz (författare)
- Stockholms universitet,Institutionen för miljövetenskap,Harvard John A. Paulson School of Engineering and Applied Sciences, USA
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- Soerensen, Anne L. (författare)
- Naturhistoriska riksmuseet,Enheten för miljöforskning och övervakning
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- Sköld, Martin (författare)
- Stockholms universitet,Naturhistoriska riksmuseet,Enheten för miljöforskning och övervakning,Matematiska institutionen,Swedish Museum of Natural History, Sweden
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- Awad, Raed (författare)
- Stockholms universitet,Institutionen för miljövetenskap,IVL Swedish Environmental Research Institute, Sweden
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- Spaan, Kyra M. (författare)
- Stockholms universitet,Institutionen för miljövetenskap
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- Lauria, Mélanie Z., 1993- (författare)
- Stockholms universitet,Institutionen för miljövetenskap
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- Plassmann, Merle M., 1981- (författare)
- Stockholms universitet,Institutionen för miljövetenskap
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- Benskin, Jonathan P., 1981- (författare)
- Stockholms universitet,Institutionen för miljövetenskap
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Environmental Science. - 2050-7887 .- 2050-7895.
- Relaterad länk:
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https://pubs.rsc.org...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Temporal and spatial trends of 15 per- and polyfluoroalkyl substances (PFAS) were determined in white-tailed sea eagle (WTSE) eggs (Haliaeetus albicilla) from two inland and two coastal regions of Sweden between 1969 and 2021. PFAS concentrations generally increased from ∼1969 to ∼1990s–2010 (depending on target and site) and thereafter plateaued or declined, with perfluorooctane sulfonamide (FOSA) and perfluorooctane sulfonate (PFOS) declining faster than most perfluoroalkyl carboxylic acids (PFCAs). The net result was a shift in the PFAS profile from PFOS-dominant in 1969–2010 to an increased prevalence of PFCAs over the last decade. Further, during the entire period higher PFAS concentrations were generally observed in coastal populations, possibly due to differences in diet and/or proximity to more densely populated areas. Fluorine mass balance determination in pooled samples from three of the regions (2019–2021) indicated that target PFAS accounted for the vast majority (i.e. 81–100%) of extractable organic fluorine (EOF). Nevertheless, high resolution mass-spectrometry-based suspect screening identified 55 suspects (31 at a confidence level [CL] of 1–3 and 24 at a CL of 4–5), of which 43 were substances not included in the targeted analysis. Semi-quantification of CL ≤ 2 suspects increased the identified EOF to >90% in coastal samples. In addition to showing the impact of PFAS regulation and phase-out initiatives, this study demonstrates that most extractable organofluorine in WTSE eggs is made up of known (legacy) PFAS, albeit with low levels of novel substances.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- PFAS
- PFOS
- white-tailed sea eagle
- eggs
- trends
- Sweden
- Baltic Sea
- Man and the environment
- Naturmiljö och människan
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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