Predicting bioconcentration factors (BCFs) of polychlorinated bornane (toxaphene) congeners in fish and comparison with bioaccumulation factors (BAFs) in biota from the aquatic environment

Polychlorinated bornanes, the main components of Toxaphene, are bioconcentr- ated in aquatic organisms to a high extent. However, up to this time no bioconcentration tests with individual chlorinated bornanes in aquatic organisms have been performed. Therefore, the bioconcentration factors (BCFs) of seven selected persistent chlorinated bornane congeners which are regularly found in aquatic organisms, were predicted from their n-octanol/water partition coefficients (log Kow). Furthermore, these BCF values were compared with the measured bioaccumulation factors (BAFs) in zooplankton and different fish species from the aquatic environme- nt.