BfR-Wissenschaft 
29 
Even though the “Wadden Sea” is one of the best investigated marine environments, the 
uncertainty to define such consequences remains high. As a matter of course an environ 
mental risk analysis as basic part of a NEBA has to consider all reasonable information 
available such as: drift analyses, sensitivity of habitats, toxicity, effectivity of measures, eco 
logical as well as natural protection damages. The design and development of response ac 
tions, however, is only possible by the decision to determine scenario-depending endpoints 
which enforcedly are based on the educated guess of experts as well as on their careful con 
sideration of probability and plausibility. 
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