QSAR methodology for calculating impact on organisms exposed to dissolved oil in the water column - ERA Acute for water column exposed organisms

Abstract

ERA Acute uses results from an oil spill model to calculate impact from exposure to the spilled oil in the four compartments: sea surface, shoreline, water column and sea floor. The oil spill model is run in stochastic mode to combine the impact with a probablity for the impact to calculate environmental risk. This report describes exposure calculations in the water column as available with the OSCAR model per today in stochastic mode. Since the model is calibrated with toxicity data for zooplankton, the report describes how it may be applied to other organisms in the water column including phytoplankton, fish egg/Larvae, fish as well as corals and sponges. In the last chapter we describe how to use OSCAR together with the ERA Acute software and suggest improvements for future solutions.