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Paramecium tetraurelia. Pre-screen for hazardous chemicals: a rapid-detector system for health hazards. Progress report

Technical Report ·
OSTI ID:6187790
Genotoxic and cytotoxic effects of dilutions of oil shale process waters from three different retorting processes were evaluated using the Paramecium tetraurelia and the Salmonella assays. Process waters from above-ground, true in situ, and modified retorting process were analyzed. Significant mutagenicity was detected in waste water from both the above-ground and true in situ retorting processes in both the Salmonella and Paramecium bioassays. The Salmonella assay required the addition of the rat liver S9 fraction; the Paramecium bioassay was more sensitive to genotoxic effects from an above-ground retort water without the addition of the rat liver fraction. Mutagenicity of the dilutions tested from the modified retort process was detected only in the Paramecium system. The waste water from the above-ground retort process was the most toxic to both the protozoan and bacteria. Since the chemical composition of oil shale process waters can vary with: 1) the retorting process used, 2) the temperature of the retorting, 3) the composition of the shale rock, and 4) the sampling and storage procedures, the differences in biological activity observed between water can reflect differences in water contamination.
Research Organization:
Wyoming Univ., Laramie (USA). Dept. of Zoology and Physiology
DOE Contract Number:
AS02-77EV04477
OSTI ID:
6187790
Report Number(s):
DOE/EV/04477-2; ON: DE81025884
Country of Publication:
United States
Language:
English