00000nam 2200000za 4500 9.850393 CaOODSP 20221107154138 cr ||||||||||| 180122s2017 oncd ob f000 0 eng d CaOODSP eng eng fre n-cn--- Fs70-5/2017-064E-PDF Review of methods for measuring the toxicity to aquatic organisms of the water accommodated fraction (WAF) and chemically-enhanced water accommodated fraction (CEWAF) of petroleum [electronic resource] / Julie Adams ... [et al.]. Ottawa : Fisheries and Oceans Canada, Canadian Science Advisory Secretariat, 2017. xi, 110 p. : charts (some col.) Research document, 1919-5044 ; 2017/064 Issued also in French under title: Examen des méthodes de mesure de la toxicité pour les organismes aquatiques de la fraction adaptée à l'eau (WAF) et de la fraction adaptée à l'eau améliorée chimiquement (CEWAF) du pétrole. Cover title. "National Capital Region." “December 2017.” Includes bibliographical references (p. 86-96). “The shipment of diluted bitumen (dilbit) to Canadian refineries and ports is increasing with the expansion of its production in northern Alberta. Dilbit has unique physical and chemical properties relative to conventional crude oils, including rapid weathering and greater adhesion and viscosity that affect its fate, behaviour and effects in marine and freshwater ecosystems. The Chemical Response to Oil Spills: Ecological Effects Research Forum (CROSERF) recommended standard protocols to prepare Water Accommodated Fractions (WAFs) and Chemically-Enhanced Water Accommodated Fractions (CEWAFs) of crude oil for toxicity tests. This review updates the CROSERF protocols with recommendations to overcome specific issues with dilbit. The advantages and disadvantages of various methods are reviewed and a proposed framework is provided on experimental designs, physical and chemical characterization of test oils, preparation of physically- and chemically-dispersed oil, characterizing test solutions, and toxicity testing. Research needs are presented to improve experimental designs, the preparation and toxicity testing of oil solutions, the chemical characterization of test oil and oil solutions, and test requirements that recognize the unique characteristics of dilbit and other crude and refined oils"--Abstract, p. ix. Includes abstract in French. gccst Oil spills gccst Environmental impact gccst Aquatic wildlife gccst Petroleum gccst Toxicology Adams, Julie Elizabeth. Canada. Department of Fisheries and Oceans. National Capital Region. Canadian Science Advisory Secretariat. Examen des méthodes de mesure de la toxicité pour les organismes aquatiques de la fraction adaptée à l'eau (WAF) et de la fraction adaptée à l'eau améliorée chimiquement (CEWAF) du pétrole (CaOODSP)9.860717 Research document (Canadian Science Advisory Secretariat) 1919-5044 ; 2017/064. (CaOODSP)9.507396 PDF 1.13 MB https://publications.gc.ca/collections/collection_2018/mpo-dfo/fs70-5/Fs70-5-2017-064-eng.pdf