TITLE

Accumulation of inorganic and organic pollutants by biofilms in the aquatic environment

AUTHOR(S)
Schorer, M.; Eisele, M.
PUB. DATE
October 1997
SOURCE
Water, Air & Soil Pollution;Oct1997, Vol. 99 Issue 1-4, p651
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In a partly urbanized catchment to the south of Trier, Germany, short term variations in river sediment compounds as well as the bioaccumulation of pollutants on surface associated microbial coatings (biofilms) were investigated weekly during a period of six months. Concentrations of selected heavy metals (Cu, Zn, Pb), polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB) and for microbial characterisation protein, carbohydrate and uronic acid were analyzed. Sorption processes on biofilms were determined by temporal variations in pollutants and microbial parameters and through the comparison of sorbed substances in biofilms and sediments. The results show, that sorption events on biofilms play an important and dynamic role in spring and summer for transport and accumulation of the investigated pollutants in the aquatic environment. The amount of pollutants sorbed onsediment particles is not only dependent on the particulate bound orsolved pollutants in the river water, but is strongly controlled by the changing conditions of the biofilms.
ACCESSION #
8033261

 

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