Mace G. Barron Archives | Page 2 of 2 | Prince William Sound Regional Citizens' Advisory Council

Evaluation of Mixing Zone and NPDES Permit Renewal Applications for BWTF at Alyeska Marine Terminal

AMT Application Evaluation: In overview, the BWTF effluent discharge is tasked by regulation to stay within proscribed limits of pollutant concentrations and to do no significant harm to the environment of Port Valdez. According to annual results from Alyeska?s Environmental Monitoring Program (AEMP), they have essentially succeeded in their task. Oil concentrations are reported at very low levels and with the exception of the localized changes to infauna near the diffuser, no significant harm to the environment has been documented.

Photoenhanced Toxicity of Aqueous Phase and Chemically-Dispersed Weathered Alaska North Slope Crude Oil to Pacific Herring Eggs and Larvae

This 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 Waters

This 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 a chemical in the presence of ultraviolet light (UV), compared to a standard laboratory test conducted with fluorescent lighting (minimal UV). Oil products and weathered oil are phototoxic, as are specific polycyclic aromatic compounds present in oil. Photoenhanced toxicity may occur through two processes: photomodification and photosensitization, which are further detailed in the report.