Influence of natural aquatic humic substances on the bioavailability of benzo(a)pyrene to Atlantic salmon.
Uptake and bioconcentration factors of benzo(a)pyrene (BaP) in Atlantic Salmon were determined in water containing natural aquatic humic substances (AHS) and control water with low humic content by measuring rate constants for uptake and depuration. The amounts of partition-like and strongly AHS bound BaP were determined by tube dialysis and cyclohexane extraction, respectively. Uptake and bioconcentration factors (BCF) were observed to decrease in the presence of AHS, the values of the BCFs being 2310 and 1160 for control water and AHS respectively. The rate constant for uptake of AHS bound BaP was found to be 30 percent of that of free dissolved BaP.
Johnsen
S
S
Continental Shelf and Petroleum Technology Research Institute (IKU), Trondheim, Norway.
Kukkonen
J
J
Grande
M
M
D000818:Animals; D001564:Benzo(a)pyrene / Q000378:metabolism*; D001682:Biological Availability; D006863:Hydrogen-Ion Concentration; D008433:Mathematics; D008962:Models, Theoretical; D012474:Salmon / Q000378:metabolism*; D014876:Water Pollution
D001564:Benzo(a)pyrene