Long-term fate of aromatics derived from crankcase oil in rainbow trout and snow crabs
- Department of Fisheries and Oceans, St. John`s, Newfoundland (Canada)
Crankcase oils are mineral oils containing hydrocarbons and various additives. In the present case, the oil contained 10% aromatics and 1% PAH if concentration is expressed in terms of chrysene units. Rainbow trout were exposed daily to food pellets spiked with crankcase oil and sampled monthly for 4 months. Exposure was to 0, 3.2, 6.4 and 9.6 ug oil/g fish/day and represents a water concentration of nearly 0, 10, 20, and 30 ug oil/L. Muscle tissue was analyzed for total and specific aromatics (PAHs, LABs, PCBs) and various elements. The liver was analyzed for enzymatic activity (EROD and AchE) and the gall bladder, for bile metabolites. A dose and time response was observed for the bioaccumulation of aromatics. In another experiment, crabs were exposed to crankcase oil during 6 months and sampled intermittently. Feeding took place once a week during the first 3 months and biweekly for the last 3 months. Exposure was equivalent to 4--8 ug oil/g crab/day or to 510 ug oil/L. Muscle and hepatopancreas were analyzed for aromatic compounds. Comparison is made between the two experiments and the fate of aromatics discussed in terms of temperature, respiration rates, lipid content of tissues and K{sub ow} of chemicals known to be present in lubricating oils.
- OSTI ID:
- 191306
- Report Number(s):
- CONF-9511137-; ISBN 1-880611-03-1; TRN: IM9610%%307
- Resource Relation:
- Conference: 2. Society of Environmental Toxicology and Chemistry (SETAC) world conference, Vancouver (Canada), 5-9 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of Second SETAC world congress (16. annual meeting): Abstract book. Global environmental protection: Science, politics, and common sense; PB: 378 p.
- Country of Publication:
- United States
- Language:
- English
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