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The origin of a contamination of fish from the river Neckar with hexachlorobenzene, octachlorostyrene and pentachlorobenzene: Formation in an industrial process

1986; Springer Science+Business Media; Volume: 182; Issue: 6 Linguagem: Inglês

10.1007/bf01043270

0044-3026

J�rgen Vogelgesang, Karin Kypke-Hutter, Rainer Malisch, Peter Binnemann, Wolfgang Dietz,

Water Quality Monitoring and Analysis

Analyses of fish and sediments from the upper course of the river Neckar pointed to a locally restricted discharge of hexachlorobenzene (HCB), octachlorostyrene (OCS) and pentachlorobenzene (PeCB) into the river in the area of the city of Rottweil (see part I of this publication). The analysis of sludges from sewage producers discharging their effluents into the river showed that the Rottweil purification plant was the origin. This plant collects domestic and industrial sewage. The cause of the contamination was the waste water of a piston manufacturer. The HCB, OCS and PeCB originated from the degassing of an aluminium smelt with chlorine gas. An estimation of the resulting amounts of HCB showed this process to be the most important source for the severe contamination of the analysed samples of fish from the river Neckar. After installing a filter press the emission was reduced by more than 99%.