Toxicity of Oil Spill Response Agents and Crude Oils to Five Aquatic Test Species

The majority of aquatic toxicity data for petroleum products has been limited to a few intensively studied crude oils and Corexit chemical dispersants, and acute toxicity testing in two standard estuarine test species: mysids (Americamysis bahia) and inland silversides (Menidia beryllina). This stud...

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Bibliographic Details
Published in:Marine Pollution Bulletin
Main Authors: Barron, Mace G., Bejarano, Adriana C., Conmy, Robyn N., Sundaravadivelu, Devi, Meyer, Peter
Format: Text
Language:English
Published: 2020
Subjects:
Article
Alaska North Slope
north slope
Alaska
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7425839/
http://www.ncbi.nlm.nih.gov/pubmed/32056858
https://doi.org/10.1016/j.marpolbul.2020.110954
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Summary:The majority of aquatic toxicity data for petroleum products has been limited to a few intensively studied crude oils and Corexit chemical dispersants, and acute toxicity testing in two standard estuarine test species: mysids (Americamysis bahia) and inland silversides (Menidia beryllina). This study compared the toxicity of two chemical dispersants commonly stock piled for spill response (Corexit EC9500A®, Finasol®OSR 52), three less studied agents (Accell Clean®DWD dispersant; CytoSol® surface washing agent; Gelco200® solidifier), and three crude oils differing in hydrocarbon composition (Dorado, Endicott, Alaska North Slope). Consistent with listings on the U.S. National Contingency Plan Product Schedule, general rank order toxicity was greatest for dispersants and lowest for the solidifier. The results indicate that freshwater species can have similar sensitivity as the conventionally tested mysids and silversides, and that the sea urchin (Arbacia punctulata) appears to be a reasonable addition to increase taxa diversity in standardized oil agent testing.

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