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Genotoxicity induced by a shale oil byproduct in Chinese hamster cells following metabolic activation

Conference ·
OSTI ID:5519629
A process water obtained from a holding tank during the surface retorting of oil shale has been shown to induce a linear dose response of 100 histidine revertants/sub ..mu../1 in the Ames/Salmonella test. The complex mixture has also previously been shown to induce genotoxicity in mammalian cells following activation by near ultraviolet light and natural sunlight. This report focuses on the effects of a particular oil shale retort process water on cultured Chinese hamster cells following metabolic activation by either rat liver homogenate or lethally irradiated but metabolically competent Syrian hamster embryonic cells. Cytotoxic and mutagenic responses induced by the process water and a fractionated sample from it containing the majority of the mutagenic activity (as assessed by the Salmonella test) were measured under conditions designed to optimally measure the mutagenic potency of the promutagen, benzo(a)pyrene. These results suggest a possible discrepancy in the genotoxic potential of this complex mixture when various methods are utilized to measure its potential.
Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
5519629
Report Number(s):
LA-UR-82-271; CONF-820122-1; ON: DE82010427
Country of Publication:
United States
Language:
English