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Hi there: Does any one have the inormation about the LC50 for three chemicals in trout? Chemicals are: trichlorobenzene pentachlorobenzene 2,4,6,2',4',6'-hexachlorobiphenyl Thank you in advance, -- Peiwen Qiao Dept. of Biology, SFU Burnaby, BC, Canada V5C 2C3 qiao at sfu.ca