title: Method for generating parameterized ecotoxicity data of dispersed oil for use in environmental modelling.
abstract: The aim of the work was to establish methodology for realistic laboratory-based test exposures of organisms to oil dispersions, specifically designed to generate parameterized toxicity data. Such data are needed to improve the value of numerical models used to predict fate and effects of oil spills and different oil spill responses. A method for continuous and predictable in-line production of oil dispersions with defined size distribution of different oil qualities was successfully established. The system enables simultaneous comparison between the effects of different concentrations of dispersion and their corresponding equilibrium water soluble fractions. Thus, net effects of the oil droplet fraction may be estimated. The method provides data for comparing the toxicity of oil dispersions generated both mechanically and with the use of chemical dispersions, incorporating the toxicity of both dissolved oil and droplets of oil.
authors.affiliation: SINTEF, Materials and Chemistry, Marine Environmental Technology, 7465 Trondheim, Norway. Trond.Nordtug@sintef.no
authors.forename: Trond
authors.initials: T
authors.lastname: Nordtug
authors.forename: Anders Johny
authors.initials: AJ
authors.lastname: Olsen
authors.forename: Dag
authors.initials: D
authors.lastname: Altin
authors.forename: Sonnich
authors.initials: S
authors.lastname: Meier
authors.forename: Ingrid
authors.initials: I
authors.lastname: Overrein
authors.forename: Bjørn Henrik
authors.initials: BH
authors.lastname: Hansen
authors.forename: Øistein
authors.initials: Ø
authors.lastname: Johansen
mesh_terms: D054750:Ecotoxicology; D004784:Environmental Monitoring / Q000379:methods*; D008956:Models, Chemical; D010578:Petroleum / Q000032:analysis / Q000633:toxicity*; D059392:Petroleum Pollution / Q000032:analysis* / Q000706:statistics & numerical data; D013501:Surface-Active Agents / Q000633:toxicity; D014874:Water Pollutants, Chemical / Q000633:toxicity*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D010578:Petroleum; D013501:Surface-Active Agents; D014874:Water Pollutants, Chemical