| Assessment of the potential reproductive and subchronic toxicity of EDS coal liquids in Sprague-Dawley rats. | |
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MedLine Citation:
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PMID: 3672535 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The EDS direct coal liquefaction process is one of several methods of producing liquid fuels from coal which have reached the pilot or demonstration stage of development. Relatively high levels of polycyclic aromatic hydrocarbons are present in distillate fractions boiling above approximately 370 degrees C, and unrefined coal-derived liquids which contain substantial amounts of material from this boiling range are relatively potent dermal carcinogens. Because coal-derived liquids containing high boiling (i.e., greater than 370 degrees C) material may pose a variety of toxic hazards, efforts have been made to evaluate the potential effects on biological endpoints other than cancer. The present studies assessed the potential for reproductive and subchronic toxicity following repeated oral administration of 2 coal-derived liquids, recycle solvent and fuel oil, which contained substantial amounts of high boiling material. Few biologically important differences were found in any of the experimental parameters. In the reproductive toxicity study, frequency of fertilization and implantation, mean number of live births, fraction of litter surviving through the lactation period and mean weight gain of the litters during the lactation period were not affected by treatment; in addition, there was no evidence of increased frequency of malformation. In the subchronic toxicity study, weight gain was reduced in animals from the high dose groups, but was not significantly different from controls. Liver weights were significantly elevated, but there was no microscopic evidence of pathologic changes. Erythrocyte counts, hemoglobin levels and hematocrits were significantly reduced suggesting a tendency towards anemia. These findings suggested that repeated exposure to EDS recycle solvent and fuel oil at levels of up to 0.5 g/kg per day had no detectable effect on reproductive capacity or performance and did not induce substantial systemic toxicity. |
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Authors:
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R H McKee; R T Plutnick; K A Traul |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Toxicology Volume: 46 ISSN: 0300-483X ISO Abbreviation: Toxicology Publication Date: 1987 Nov |
Date Detail:
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Created Date: 1987-12-17 Completed Date: 1987-12-17 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0361055 Medline TA: Toxicology Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 267-80 Citation Subset: IM |
Affiliation:
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Exxon Biomedical Sciences, Inc., East Millstone, NJ 08873. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Body Weight / drug effects Coal* Erythrocyte Count / drug effects Female Fetal Death / chemically induced Fuel Oils / toxicity Litter Size / drug effects Male Organ Size / drug effects Polycyclic Compounds / toxicity* Pregnancy Rats Rats, Inbred Strains Reproduction / drug effects* Solvents / toxicity |
| Chemical | |
Reg. No./Substance:
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0/Coal; 0/Fuel Oils; 0/Polycyclic Compounds; 0/Solvents |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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