Journal Article
Partition coefficient and bioaccumulation of selected organic chemicals
Chiou, CT; Freed, VH; Schmedding, DW; Kohnert, RL
Environmental Science & Technology
ISSN: 0013-936X
EISSN: 1520-5851
PESTAB/77/1493
An empirical equation is established to relate the experimental n-octanol/water partition coefficients to the aqueous solubilities of a wide variety of chemicals including aliphatic and aromatic hydrocarbons, aromatic acids, organochlorine and organophosphate pesticides, and polychlorinated biphenyls. Such a correlation, covering more than eight orders of magnitude in solubility (from 10(-3) to 104 ppm) and six orders of magnitude in partition coefficient (from 10 to 10(7)), allows an assessment of partition coefficient from solubility with a predicted error of less than one order of magnitude. A correlation is observed between the bioconcentration factors in rainbow trout and the aqueous solubilities for some stable organic compounds.