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Determination of polycyclic aromatic hydrocarbons (PAHs) and other organic pollutants in freshwaters on the western shore of Admiralty Bay (King George Island, Maritime Antarctica)

Author:
Szopińska, Małgorzata, Szumińska, Danuta, Bialik, Robert Józef, Dymerski, Tomasz, Rosenberg, Erwin, Polkowska, Żaneta
Source:
Environmental science and pollution research international 2019 v.26 no.18 pp. 18143-18161
ISSN:
0944-1344
Subject:
air, alkanes, ecosystems, ethylbenzene, freshwater, fuels, glaciers, molecular weight, pollutants, polycyclic aromatic hydrocarbons, summer, toluene, Antarctic region, Antarctica, South America
Abstract:
Organic contamination in freshwater samples has never been investigated at the western shore of Admiralty Bay. Therefore, the presence of polycyclic aromatic hydrocarbons (PAHs) in five different sites distributed along a shore running from the Arctowski Station to the Baranowski Glacier was studied. Moreover, organic compounds such as n-alkanes, toluene and ethylbenzene were also noted. Increased ΣPAHs in late Austral summer 2016 are the result of long-range atmospheric transport of air masses from South America, confirmed by 10-day backward air mass trajectories analysis. The presence of n-alkanes and other hydrocarbons, as well as the evaluation of PAH indices (e.g. ΣLMW/ΣHMW* > 1), shows the use of fuel and indicate local human activity. As a final conclusion, our analysis indicates a mixed origin of PAHs (global and local). The presence of PAHs and other hydrocarbons in the water environment may constitute a potentially negative effect on the Antarctic ecosystem and it should be investigated in detail during further research (//*ΣLMW—sum of low molecular weight PAHs (two- and three-ring PAHs); ΣHMW—sum of high molecular weight PAHs (four- and five-ring PAHs)//). Graphical abstract
Agid:
6470633