||Development of a chemical toxicity assay for pulp mill effluents /
Leach, J. M. ;
Chung, L. T. K.
||British Columbia Research Council, Vancouver.;Industrial Environmental Research Lab., Cincinnati, OH.
|| U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory,
Fishes--Effect of water pollution on--United States. ;
Sulfate pulping process. ;
Sulphate pulping process
Paper industry ;
Water analysis ;
Chemical analysis ;
Gas chromatography ;
Water pollution effects(Animals) ;
Biological industrial waste treatment
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||105 pages : illustrations ; 28 cm
A chemical analysis procedure was developed to measure within 1.5 hours compounds responsible for the toxicity of pulp mill effluents to fish. Analytical results for 113 samples of raw and biologically-treated bleached and unbleached kraft, sulphite and groundwood effluents were converted via toxic units into estimates of acute lethal toxicity. Agreement between 96-h median lethal concentrations calculated by this method, and values from bioassays of the effluents using rainbow trout was within 30% for 73% of the samples examined. Biological treatment was highly effective in removing the known toxic compounds at pulp mills on the Willamette River, OR. and the Androscoggin River, NH. and ME., based on estimates of toxicant loadings into and out of the biobasins.
Caption title. "December 1980." "EPA-600/2-80-206." Microfiche.