Macoma inquinata

Accumulation can be a function of PAH hydrophobicity, but time of exposure and metabolic capacity must also be considered. The day 7 BCFs for clams Macoma inquinata) exposed to sediment containing phenan-threne, chrysene, dimethylbenz[a]anthracene, and benzo[a]pyrene, varied 131-fold and were strongly correlated to molecular weight (and hydrophobicity) (Roesijadi et al. 1978a). The same pattern was found for naphthalene BCFs (naphthalene to trimethylnaphthalene) in a clam Rangia cu-neata), which showed a dramatic increase (2.3 to 26.7) as molecular weight (and hydrophobicity) increased (Neff et al. 1976). 

Augenfeld JM, Anderson JW, Riley RG, Thomas BL (1982) The fate of polyaromatic hydrocarbons in an intertidal sediment exposure system bioavailability to Macoma inquinata (Mollusca Pelecypoda) and Abarenicola pacifica (Annelida Polychaeta). Mar Environ Res 7 31-50. 

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