Natural bitumens versus oil pollution in the Vlasina lake peat

Free and associated bitumens were isolated by sequential extraction from Vlasina lake peat (SE Serbia) and were investigated in order to differentiate between oil pollution and natural bitumens. Four peat samples were collected at different depths, on a peat island. Gas chromatographic (GC) and gas...

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Bibliographic Details
Published in:Environmental chemistry letters 2005-08, Vol.3 (1), p.39-42
Main Authors: Đurka, D., Pfendt, P., Jovančićević, B., Cvetković, O., Wehner, H.
Format: Article
Language:English
Subjects:
Bitumens
Chromatography
Freshwater
Gas chromatography
Lakes
Mass spectrometry
Oil pollution
Peat
Water analysis
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Summary:Free and associated bitumens were isolated by sequential extraction from Vlasina lake peat (SE Serbia) and were investigated in order to differentiate between oil pollution and natural bitumens. Four peat samples were collected at different depths, on a peat island. Gas chromatographic (GC) and gas chromatography/mass spectrometry (GC/MS) analysis revealed the presence of three markedly different bitumen fractions. Here we show that the free bitumens are representing the native peat bitumens. The two associated bitumens are mainly the products of bacterial rework of organic substance, which were then trapped by two differing mechanisms. The bitumens characteristics and association features exclude a contribution of oil pollution.[PUBLICATION ABSTRACT]
ISSN:1610-3653
1610-3661
DOI:10.1007/s10311-005-0110-2