Abstract
Accumulation characteristics of PCBs in Mussel during its growing stage are discussed to estimate mussel as a bioindicator for monitoring. It was shown that the content of PCBs in the mussel is not affected by its growing satge and size from the culturing test, seasonal sampling test and different-size sampling test. Concentration factors are not affected by the size from the viewpoitnts of homologue and isomar of PCBs, too. Concentration mechanism of the isomars in SS is explained by adsorption mechanism with adsorption constant of organic carbon of the isomars. Though the values of concentration factor of the isomars from sea water to Mussel increases with increase of Cl numbers, as similar as SS, until Cl number of 7 from 103 to 105 order, the values of isomars with Cl number of 8 decrease, differently in SS, to 104-103 order. The isomars of #141, #174 and #170 have also low values of the factor as around 104.
