title: Radium-226 equilibrium between water and lake herring, Coregonus artedii, tissues attained within fish lifetime: confirmation in this species of one assumption in the simple linear concentration factor model.
abstract: Equilibrium conditions are assumed in the simple linear concentration factor model commonly used in simulations of contaminant flow through ecosystems and in dose and risk calculations. Predictions derived from a power function model have suggested that if the time scale of the food-chain transfer is less than six years in fish, radium-226 equilibrium will not be achieved in nature, thereby violating the equilibrium requirement in the concentration factor model. Our results indicate (226)Ra equilibrium is achieved in a natural population of lake herring (Coregonus artedii), contrary to predictions of the power function model.
authors.affiliation: Environmental Radioactivity, Elliot Lake Research Field Station, Department of Biology, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada.
authors.forename: F V
authors.initials: FV
authors.lastname: Clulow
authors.forename: G G
authors.initials: GG
authors.lastname: Pyle