Aquatic toxicity of petroleum additives
A proactive product stewardship program was undertaken by the Technical Committee of Petroleum Additive Manufacturers (ATC) in Europe and the Chemical Manufacturers Association (CMA) in the United States to develop a database for the acute aquatic toxicity of the major petroleum additive classes. Different additive components chosen from major lubricant additive classes were tested for acute toxicity to freshwater fish, an invertebrate, algae, and wastewater treatment microorganisms. Test organisms were exposed to individually prepared water accommodated fractions (WAFS) of the additive component in the invertebrate and algae tests to avoid physical fouling of the test organisms. Fish were tested using both WAFs and dispersions in order to compare test methods. The test material was directly added to each microorganism suspension in the activated sludge inhibition test. Testing was performed using current OECD test guidelines and in accordance with Good Laboratory Practices (GLP). The majority of the additive components exhibited low toxicity to the test organisms. However, toxicity was observed with the zinc dithiophosphates and, to a lesser extent, with the calcium alkaryl sulfonates.
- OSTI ID:
- 191307
- Report Number(s):
- CONF-9511137--; ISBN 1-880611-03-1
- Country of Publication:
- United States
- Language:
- English
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