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Citation
Tags
HERO ID
2816716
Reference Type
Journal Article
Title
Characterization of the noncancer hazards of gas oils
Author(s)
Mckee, RH; Schreiner, CA; White, R; Saperstein, M; Charlap, JH; O'Neill, TP; Goyak, KO; Nicolich, M
Year
2014
Is Peer Reviewed?
Yes
Journal
International Journal of Toxicology
ISSN:
1091-5818
EISSN:
1092-874X
Volume
33
Issue
1 Suppl
Page Numbers
78S-94S
Language
English
PMID
24179030
DOI
10.1177/1091581813504228
Web of Science Id
WOS:000331706400007
Abstract
Gas oils, used to manufacture diesel fuel and residential heating oil, are complex hydrocarbon substances with carbon numbers of C9-C30 and boiling ranges of approximately 150 °C to 450 °C. Target organ (liver enlargement, reduced thymus weights, and reductions in hematological parameters) and developmental (reduced fetal viability, increased resorption frequency, and reduced fetal weights) effects are associated with aromatic constituents present in some gas oils. Two types of gas oils were tested for repeated-dose and developmental toxicity following repeated dermal administration. A blend of commercial diesel fuels containing 26% aromatics, primarily single-ring compounds, did not cause either target organ or developmental effects at levels up to 600 mg/kg/d. "Cracked" gas oils containing higher levels of aromatic constituents were also tested. Because of limited sample availability, 2 cracked gas oil samples were tested, one for systemic effects and the other for developmental toxicity. The sample tested in the repeated-dose toxicity study (81% aromatics including approximately 10% 3-ring compounds) produced increased liver weights, reduced thymus weights, and reductions in hematological parameters. The overall no observed adverse effect level (NOAEL) was 100 mg/kg/d. The sample tested for developmental toxicity (65% aromatics including approximately 5% 3-ring compounds) resulted in significant reductions in fetal survival, significant increases in resorption frequency, and significant reductions in fetal weights with an overall NOAEL of 100 mg/kg/d. In summary, gas oils may or may not cause target organ and/or developmental effects depending on the levels and types of aromatic constituents that they contain.
Tags
IRIS
•
Trimethylbenzenes (Interagency Science Discussion Draft)
Literature Search Update
Literature Search Update- Considered
•
Trimethylbenzenes (TMB)
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