Seasonal accumulation of persistent organic pollutants on a high altitude glacier in the Eastern Alps
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In: Environmental Pollution, Vol. 218, 01.11.2016, p. 804-812.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Seasonal accumulation of persistent organic pollutants on a high altitude glacier in the Eastern Alps
AU - Kirchgeorg, T.
AU - Dreyer, A.
AU - Gabrielli, P.
AU - Gabrieli, J.
AU - Thompson, L. G.
AU - Barbante, C.
AU - Ebinghaus, R.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - The seasonal accumulations of perfluorinated substances (PFAS), polybrominated diphenyl ethers (PBDE) and polycyclic aromatic hydrocarbons (PAH) were measured in a 10 m shallow firn core from a high altitude glacier at Mt. Ortles (Italy, 3830 m above sea level) in South Tyrol in the Italian Eastern Alps. The most abundant persistent organic pollutants of each group were perfluorobutanoic acid (PFBA), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA) (for PFASs); BDE 47, BDE 99, BDE 209 (for PBDEs) and phenanthrene (PHE), fluoranthene (FLA) and pyrene (PYR) (for PAHs). All compounds show different extents of seasonality, with higher accumulation during summer time compared to winter. This seasonal difference mainly reflects meteorological conditions with a low and stable atmospheric boundary layer in winter and strong convective activity in summer, transformation processes during the transport of chemicals and/or post-depositional alterations. Change in the composition of the water-soluble PFCAs demonstrates the influence of meltwater percolation through the firn layers.
AB - The seasonal accumulations of perfluorinated substances (PFAS), polybrominated diphenyl ethers (PBDE) and polycyclic aromatic hydrocarbons (PAH) were measured in a 10 m shallow firn core from a high altitude glacier at Mt. Ortles (Italy, 3830 m above sea level) in South Tyrol in the Italian Eastern Alps. The most abundant persistent organic pollutants of each group were perfluorobutanoic acid (PFBA), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA) (for PFASs); BDE 47, BDE 99, BDE 209 (for PBDEs) and phenanthrene (PHE), fluoranthene (FLA) and pyrene (PYR) (for PAHs). All compounds show different extents of seasonality, with higher accumulation during summer time compared to winter. This seasonal difference mainly reflects meteorological conditions with a low and stable atmospheric boundary layer in winter and strong convective activity in summer, transformation processes during the transport of chemicals and/or post-depositional alterations. Change in the composition of the water-soluble PFCAs demonstrates the influence of meltwater percolation through the firn layers.
KW - European Alps
KW - Glacier
KW - PAH
KW - PBDE
KW - PFAS
KW - Chemistry
UR - http://www.scopus.com/inward/record.url?scp=84991721047&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2016.08.004
DO - 10.1016/j.envpol.2016.08.004
M3 - Journal articles
C2 - 27554981
AN - SCOPUS:84991721047
VL - 218
SP - 804
EP - 812
JO - Environmental Pollution
JF - Environmental Pollution
SN - 0269-7491
ER -