The bound residues in riverine particulate matter

1 Anthropogenic organic contaminants incorporated into the non extractable particulate matter of riverine sediments from the Teltow Canal (Berlin)  

The anthropogenic contribution to the macromolecular organic matter of riverine systems can be generally attributed to three different processes  

Different kinds of anthropogenic compounds and their occurrence within the non-extractable matter are reported in a couple of studies. Most of the investigations are related to the occurrence and fate of associated low molecular contaminants, the so called bound residues , and are published within the last 30 years (e.g. Li and Felbeck 1972 Kaufman et al. 1976 Liechtenstein et al. 1977 Wheeler et al. 1979 Liechtenstein 1980 Khan 1982, Boul et al. 1994 Lichtfouse 1997 Houot et al. 1997 Northcott and Jones 2000). Earlier investigations dealed especially with 

In addition to the input of modified natural macromolecules a further mode of anthropogenic alteration of the non-extractable organic matter is the emission of technical macromolecular products. Only very few investigations were reported concerning these emissions of xenobiotic polymers. Examples are the investigations by Fabbri et al. (1998a), as well as Requejo et al. (1985), characterising the input of polystyrene into the 

On the contrary, the modes of incorporation are also investigated on a laboratory scale by spiking appropriate samples with labelled (14C, 13C, D) or non-labelled model compounds. Following, these artificial bound residues were released and characterized by selective analytical methods as described earlier (e.g. Hatcher et al. 1993 Richnow et al. 1998 Guthrie et al. 1999). 

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