... the combined process of the feeding rate, which isbased on the bioenergetics of organism weight W (kg) and temperature T (8C), and of the diffusion rate of the chemicalacross the intestinal wall, ... application of the BAF-QSAR is in the derivation of water quality guidelines (WQG). In essence, the BAF represents the relationship between the concen-tration in the water and that in the organism of ... reduction in fwith increasing KOW. f represents the bioavailable fraction of the chemical concentration in the water, which decreaseswith increasing KOWbecause of the increase in the chem-ical×s...