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Temporal trends and sediment–water partitioning of per- and polyfluoroalkyl substances (PFAS)in lake sediment

Mussabek, Dauren LU ; Ahrens, Lutz ; Persson, Kenneth M. LU and Berndtsson, Ronny LU (2019) In Chemosphere 227. p.624-629
Abstract


The use of per- and polyfluoroalkyl substances (PFAS)containing aqueous film forming foams (AFFF)at fire training facilities can have an adverse impact on the surrounding environment. The aim of the present study was to study the distribution and temporal trend of 26 PFAS in water and sediment cores for a lake and a pond affected by AFFF release from a fire training facility in Luleå, northern Sweden. In the aqueous phase, maximum ΣPFAS concentration was 1.700 ± 90 ng L
−1
. Dominant PFAS groups were perfluoroalkane sulfonates (PFSAs)with 70% of... (More)


The use of per- and polyfluoroalkyl substances (PFAS)containing aqueous film forming foams (AFFF)at fire training facilities can have an adverse impact on the surrounding environment. The aim of the present study was to study the distribution and temporal trend of 26 PFAS in water and sediment cores for a lake and a pond affected by AFFF release from a fire training facility in Luleå, northern Sweden. In the aqueous phase, maximum ΣPFAS concentration was 1.700 ± 90 ng L
−1
. Dominant PFAS groups were perfluoroalkane sulfonates (PFSAs)with 70% of the ΣPFAS, followed by perfluoroalkyl carboxylates (PFCAs, 29%), whereas the contribution of 6:2 fluorotelomer carboxylate (FTSAs)was low (<1%). In the sediment core samples, ΣPFAS concentrations ranged between <1 μg kg
−1
dry weight (dw)and 76 μg kg
−1
dw, where perfluorooctane sulfonate (PFOS)and perfluorohexane sulfonate (PFHxS)had an average contribution of ∼71% and ∼23% of the ΣPFAS. The sediment core analysis indicated that the PFAS contamination began about 1994 and the highest accumulation rate was observed for the period 2003–2009. The PFAS flux increased from 2.3 μg m
−2
yr
−1
dw in 1994 to 12 μg m
−2
yr
−1
dw by 2009. Over the accumulation period 1994–2009, the lake sediment surface received 213 μg m
−2
dw for ƩPFAS, where PFOS contributed with 125 μg m
−2
yr
−1
dw and PFHxS with 65 μg m
−2
dw. Results point to that sediment cores collected near PFAS hotspot areas can be used as a contamination record to reconstruct release history.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
AFFFs, Flux, PFAS, Sediment, Sorption, Water
in
Chemosphere
volume
227
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:85064729094
  • pmid:31009869
ISSN
0045-6535
DOI
10.1016/j.chemosphere.2019.04.074
language
English
LU publication?
yes
id
8730741b-d56f-4035-9431-b4967c639194
date added to LUP
2019-05-02 14:48:36
date last changed
2021-01-17 06:37:27
@article{8730741b-d56f-4035-9431-b4967c639194,
  abstract     = {<p><br>
                                                         The use of per- and polyfluoroalkyl substances (PFAS)containing aqueous film forming foams (AFFF)at fire training facilities can have an adverse impact on the surrounding environment. The aim of the present study was to study the distribution and temporal trend of 26 PFAS in water and sediment cores for a lake and a pond affected by AFFF release from a fire training facility in Luleå, northern Sweden. In the aqueous phase, maximum ΣPFAS concentration was 1.700 ± 90 ng L                             <br>
                            <sup>−1</sup><br>
                                                         . Dominant PFAS groups were perfluoroalkane sulfonates (PFSAs)with 70% of the ΣPFAS, followed by perfluoroalkyl carboxylates (PFCAs, 29%), whereas the contribution of 6:2 fluorotelomer carboxylate (FTSAs)was low (&lt;1%). In the sediment core samples, ΣPFAS concentrations ranged between &lt;1 μg kg                             <br>
                            <sup>−1</sup><br>
                                                          dry weight (dw)and 76 μg kg                             <br>
                            <sup>−1</sup><br>
                                                          dw, where perfluorooctane sulfonate (PFOS)and perfluorohexane sulfonate (PFHxS)had an average contribution of ∼71% and ∼23% of the ΣPFAS. The sediment core analysis indicated that the PFAS contamination began about 1994 and the highest accumulation rate was observed for the period 2003–2009. The PFAS flux increased from 2.3 μg m                             <br>
                            <sup>−2</sup><br>
                                                          yr                             <br>
                            <sup>−1</sup><br>
                                                          dw in 1994 to 12 μg m                             <br>
                            <sup>−2</sup><br>
                                                          yr                             <br>
                            <sup>−1</sup><br>
                                                          dw by 2009. Over the accumulation period 1994–2009, the lake sediment surface received 213 μg m                             <br>
                            <sup>−2</sup><br>
                                                          dw for ƩPFAS, where PFOS contributed with 125 μg m                             <br>
                            <sup>−2</sup><br>
                                                          yr                             <br>
                            <sup>−1</sup><br>
                                                          dw and PFHxS with 65 μg m                             <br>
                            <sup>−2</sup><br>
                                                          dw. Results point to that sediment cores collected near PFAS hotspot areas can be used as a contamination record to reconstruct release history.                         <br>
                        </p>},
  author       = {Mussabek, Dauren and Ahrens, Lutz and Persson, Kenneth M. and Berndtsson, Ronny},
  issn         = {0045-6535},
  language     = {eng},
  pages        = {624--629},
  publisher    = {Elsevier},
  series       = {Chemosphere},
  title        = {Temporal trends and sediment–water partitioning of per- and polyfluoroalkyl substances (PFAS)in lake sediment},
  url          = {http://dx.doi.org/10.1016/j.chemosphere.2019.04.074},
  doi          = {10.1016/j.chemosphere.2019.04.074},
  volume       = {227},
  year         = {2019},
}