Photoenhanced Toxicity

Photoenhanced toxicity is the increase in the toxicity of a chemical in the presence of ultraviolet light compared to a standard laboratory test conducted with fluorescent lighting.

Since standard dispersants toxicity testing has traditionally been conducted in a laboratory setting with fluorescent lighting, the council wanted to know how natural lighting might affect the toxicity of chemically dispersed oil. Photoenhanced toxicity, it turns out, is a factor that needs to be considered when chemically dispersing oil into the waters of Prince William Sound and the Gulf of Alaska.

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Assessment of the Phototoxicity of Weathered Alaska North Slope Crude Oil to Juvenile Pink SalmonMace G. Barron, P.E.A.K. ResearchDecember 1, 2003The objective of this study was determine if weathered ANS crude oil would be phototoxic to juvenile pink salmon under conditions of short-term exposures to high levels of oil that …
Critical Evaluation of Chemical Response to Oil Spills: Ecological Research Forum (CROSERF) Test Methods for Oil Dispersant Toxicity Testing under Subarctic ConditionsMace G. Barron, P.E.A.K. ResearchJanuary 1, 2003The Alaska Region Oil and Hazardous Substance Pollution Contingency Plan requires that decisions regarding chemical dispersants use in oil spill response in Alaska consider the potential impacts of chemically dispersed …
Photoenhanced Toxicity of Aqueous Phase and Chemically-Dispersed Weathered Alaska North Slope Crude Oil to Pacific Herring Eggs and LarvaeMace G. Barron, P.E.A.K. ResearchFebruary 11, 2002This study investigated the photoenhanced toxicity of weathered ANS to eggs and larvae of the Pacific herring (Clupea pallasi), and the relative toxicity of chemically-dispersed and aqueous phase oil.
Potential for Photoenhanced Toxicity of Spilled Oil in Prince William Sound and Gulf of Alaska WatersMace G. BarronMarch 1, 2000This report examines the potential for photoenhanced toxicity of spilled oil in Prince William Sound and associated Gulf of Alaska waters. Photoenhanced toxicity is the increase in the toxicity of …

Hydrocarbon Toxicity

Through our Hydrocarbon Toxicity Project, we research and address the gaps in knowledge regarding chronic toxic effects of oil, dispersed oil and in-situ burn (burning spilled oil) residue under study conditions similar to the cold marine waters in our region.

For more information, visit our Hydrocarbon Toxicity project page.

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