Chemosphere 1998 Mar 01;366:1247-61. doi: 10.1016/s0045-6535(97)10045-5.

Bioconcentration of chlorinated biphenyls in biota from the North Pacific Ocean.

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This study examined polychlorinated biphenyl (PCB) congener bioconcentration patterns in tissues of marine biota (macrophytes, urchins, mollusks, sea cucumbers, fishes) at Midway Atoll, North Pacific Ocean. Calculated mean lipid-normalized logarithmic bioconcentration factors (log BCFL) for PCB congeners in various marine species ranged from 3.75 to 6.97. The relationship between log BCFL and the logarithmic n-octanol-water partition coefficient (log Kow) can be adequately described by species-specific parabolic models wherein log BCFL generally increases then decreases with increases in log Kow. With the exception of a bilinear model, a variety of hydrophobicity models were generally not successful in closely predicting measured tissue residue concentrations as a function of log Kow. There is no evidence of a consistent pattern of progressive increase in bioconcentration of PCB congeners with increasing trophic level in this nearshore aquatic ecosystem.

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Genes referenced: LOC100887844