Metabolites of xenobiotica and mineral oil constituents linked to macromolecular organic matter in polluted environments

The type of association between pollutants and humic substances of soils, sediments and river waters has been investigated. Metabolites, which can arise from the microbiological degradation of polyaromatic hydrocarbons (PAH) and polychlorinated biphenyls (PCB), were cleaved from the macromolecular m...

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Bibliographic Details
Published in:Organic geochemistry 1994-12, Vol.22 (3), p.671,IN9-681,IN10
Main Authors: Richnow, Hans H., Seifert, Richard, Hefter, Jens, Kästner, Matthias, Mahro, Bernd, Michaelis, Walter
Format: Article
Language:English
Subjects:
chemical degradation
chlorobenzoic acids
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
humic substances
napthoic acids
PAH
PCB
pollutants
Pollution, environment geology
xenobiotica
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Summary:The type of association between pollutants and humic substances of soils, sediments and river waters has been investigated. Metabolites, which can arise from the microbiological degradation of polyaromatic hydrocarbons (PAH) and polychlorinated biphenyls (PCB), were cleaved from the macromolecular matrix by selective chemical degradation techniques (OH −, BCl 3, Rh/H 2). Hydrolysis reactions performed with Na 18OH proved that some metabolites of pollutants form stable ester bonds by condensation processes with functional groups of humic substances, a phenomenon which has major implications for transport, toxicity and bioavailability of xenobiotica.
ISSN:0146-6380
1873-5290
DOI:10.1016/0146-6380(94)90132-5