The recognition of biodegraded petroleum-derived aromatic hydrocarbons in recent marine sediments

Aromatic hydrocarbon fractions isolated from sediments polluted with crude oil, from sampling stations in and around Sullom Voe, Shetland Islands, were found to exhibit, as the major feature in their gas chromatograms, an unresolved complex mixture or ‘hump’. This feature was absent from the gas chr...

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Bibliographic Details
Published in:Marine pollution bulletin 1983-01, Vol.14 (3), p.103-108
Main Authors: Jones, D.M, Douglas, A.G, Parkes, R.J, Taylor, J, Giger, W, Schaffner, C
Format: Article
Language:English
Subjects:
environmental degradation
fertilizers
Marine
pollution
soil fertility
soil science
waste management
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Summary:Aromatic hydrocarbon fractions isolated from sediments polluted with crude oil, from sampling stations in and around Sullom Voe, Shetland Islands, were found to exhibit, as the major feature in their gas chromatograms, an unresolved complex mixture or ‘hump’. This feature was absent from the gas chromatograms of the aromatic hydrocarbon fractions isolated from corresponding unpolluted sediments in the region. The observed aromatic hump had little resemblance to the distribution of aromatic hydrocarbons in a typical North Sea crude oil. Incubation studies, however, showed that such a hump was appearing when oil-spiked sediments were aerobically biodegraded. From these incubation studies it was also evident that alkylaromatic hydrocarbons in the crude oil were biodegraded before any change in the normal alkanes was apparent. Therefore, the presence of an unresolved complex mixture in the gas chromatograms of aromatic hydrocarbon fractions from recent sediments can act as a marker to recognize contamination by crude oil.
ISSN:0025-326X
1879-3363
DOI:10.1016/0025-326X(83)90310-7