Kh. Carr et al., BIOCONCENTRATION OF [C-14] BUTYL BENZYL PHTHALATE IN BLUEGILL SUNFISH(LEPOMIS-MACROCHIRUS), Environmental toxicology and chemistry, 16(10), 1997, pp. 2200-2203
A short-term study was conducted to measure the bioconcentration facto
rs for intact butyl benzyl phthalate (BBP) in whole fish, fillet (edib
le tissues), and viscera (non-edible) tissues of bluegill sunfish (Lep
omis macrochirus). A group of 24 fish was exposed for 3.27 d to [C-14]
BBP in a dynamic system. Intact BBP was quantified by chromatographic
analyses for each tissue fraction. Significant metabolism of BBP was
observed in the fish, with intact BBP representing less than 3% of the
total radioactivity in each type of tissue. Measured bioconcentration
factors (BCFs) for intact BBP (normalized to 6% lipid) were 9.4 (whol
e fish), 8.7 (viscera), and 1.7 (fillet). These BCFs were considerably
lower than previously published BCF values, which were based on total
radioactive residues in whole fish.