The prediction of bioconcentration in fish

Release rates of polynuclear aromatic hydrocarbons from natural sediments and their relationship to solubility and octanol-water partitioning

“…In addition to the calculation of these empirical flux measurements for each contaminant/site combination, more general relationships were sought to produce numerical models which could be applied to other areas within the River system and/or similar types of contaminants. A first-order kinetic approach similar to that used in bioconcentration experiments (Davies and Dobbs 1984;Hawker andConnell 1985 and1989) and previous desorption studies (Watanabe et al 1985) was employed to estimate rate coefficients for these models. The rate of change equations are as follows:…”

Hydrophobicity as a Key Physicochemical Parameter of Environmental Toxicology of Pesticides

“…In this and other correlation equations (Connell, 1988;Davies and Dobbs, 1984;Isnard and Lambert, 1988;Oliver and Niimi, 1985;Opperhuizen et al, 1985), the slope of the log P term is indeed close to unity and the intercept ranges from -0.5 to -1.3. Considerable deviations from the linear relationship represented by Eqs.…”

Radionuclides, Metals, and Hydrocarbons in Oil and Gas Operational Discharges and Environmental Samples Associated with Offshore Production Facilities on the Texas/Louisiana Continental Shelf with an Environmental Assessment of Metals and Hydrocarbons.

“…Therefore, PAHs in solution in water tend to diffuse down an activity or fugacity gradient from the water, across permeable biological membranes, and into lipid-rich tissues of organisms in contact with the water. According to equilibrium partitioning theory (Davies and Dobbs, 1984;Bierman, 1990), when an aquatic animal is exposed to a nonpolar organic chemical, such as a PAH, dissolved in the ambient seawater, the chemical partitions into tissue lipids until an equilibrium, approximated by the octanol/water partition coefficient (K ) for the chemical, is reached. K is used as a (Opperhuizen et al, 1988).…”