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EC number: 203-396-5
CAS number: 106-42-3
The highest BCF for edible portions of Salmo gairdneri was 25.9.
Walsh et al (1977) conducted a 56 day flow
through test, with analytical confirmation of exposure concentrations,
to determine the bioaccumulation of mixed xylene isomers by Salmo
gairdneri. After 56 days the concentration of xylene in the edible
portions of the fish was measured. By comparing the concentrations
measured in the edible portions with the exposure concentrations we have
calculated BCF from the data reported by the authors. The highest BCF
was 25.9. There was no significant difference in the concentrations
measured in the edible portions of the fish after 1 or 56 days exposure,
nor at the different exposure concentrations. We can therefore conclude
that the bioaccumulation is initially rapid but that after this time the
amounts bioaccumulated do not increase with exposure duration.
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