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@article{1747137,
author = {Paragot, Nils and Bečanová, Jitka and Kacer, Pavlína and Prokeš, Roman and Klánová, Jana and Lammel, Gerhard and Degrendele, Céline},
article_location = {Oxford},
article_number = {October 2020},
doi = {http://dx.doi.org/10.1016/j.envpol.2020.114851},
keywords = {Per- and polyfluoroalkyl substances; Long-range atmospheric transport; Gas-particle partitioning; Multi-year variations; Seasonal variations},
language = {eng},
issn = {0269-7491},
journal = {Environmental Pollution},
title = {Multi-year atmospheric concentrations of per- and polyfluoroalkyl substances (PFASs) at a background site in central Europe},
url = {https://www.sciencedirect.com/science/article/pii/S0269749120315736?via%3Dihub},
volume = {265},
year = {2020}
}
TY - JOUR
ID - 1747137
AU - Paragot, Nils - Bečanová, Jitka - Kacer, Pavlína - Prokeš, Roman - Klánová, Jana - Lammel, Gerhard - Degrendele, Céline
PY - 2020
TI - Multi-year atmospheric concentrations of per- and polyfluoroalkyl substances (PFASs) at a background site in central Europe
JF - Environmental Pollution
VL - 265
IS - October 2020
SP - 1-8
EP - 1-8
PB - Elsevier Sci Ltd.
SN - 02697491
KW - Per- and polyfluoroalkyl substances
KW - Long-range atmospheric transport
KW - Gas-particle partitioning
KW - Multi-year variations
KW - Seasonal variations
UR - https://www.sciencedirect.com/science/article/pii/S0269749120315736?via%3Dihub
N2 - A total of 74 high volume air samples were collected at a background site in Czech Republic from 2012 to 2014 in which the concentrations of 20 per- and polyfluoroalkyl substances (PFASs) were investigated. The total concentrations (gas + particle phase) ranged from 0.03 to 2.08 pg m(-3) (average 0.52 pg m(-3)) for the sum of perfluoroalkyl carboxylic acids (Sigma PFCAs), from 0.02 to 0.85 pg m(-3) (average 0.28 pg m(-3)) for the sum of perfluoroalkyl sulfonates (Sigma PFSAs) and from below detection to 0.18 pg m(-3) (average 0.05 pg m(-3)) for the sum of perfluorooctane sulfonamides and sulfonamidoethanols (Sigma FOSA/Es). The gas phase concentrations of most PFASs were not controlled by temperature dependent sources but rather by long-range atmospheric transport. Air mass backward trajectory analysis showed that the highest concentrations of PFASs were mainly originating from continental areas. The average particle fractions (theta) of Sigma PFCAs (theta = 0.74 +/- 0.26) and Sigma PFSAs (theta = 0.78 +/- 0.22) were higher compared to Sigma FOSA/Es (theta = 0.31 +/- 0.35). However, they may be subject to sampling artefacts. This is the first study ever reporting PFASs concentrations in air samples collected over consecutive years. Significant decreases in 2012-2014 for PFOA, MeFOSE, EtFOSE and Sigma PFCAs were observed with apparent half-lives of 1.01, 0.86, 0.92 and 1.94 years, respectively.
ER -
PARAGOT, Nils, Jitka BEČANOVÁ, Pavlína KACER, Roman PROKEŠ, Jana KLÁNOVÁ, Gerhard LAMMEL and Céline DEGRENDELE. Multi-year atmospheric concentrations of per- and polyfluoroalkyl substances (PFASs) at a background site in central Europe. \textit{Environmental Pollution}. Oxford: Elsevier Sci Ltd., 2020, vol.~265, October 2020, p.~1-8. ISSN~0269-7491. Available from: https://dx.doi.org/10.1016/j.envpol.2020.114851.
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