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Short-term toxicity to fish

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In the assessment of potassium neodecanoate, read-across to the assessment entities soluble potassium substances and neodecanoic acid is applied since the ions of potassium neodecanoate determine its fate and toxicity in the environment. The potential for acute toxicity of potassium to fish is low based on EC50 values for different freshwater and marine species being above the OECD 203 test limit of 100 mg/L and the fact that potassium is added to standard test media. Based on a reliable OECD 203 equivalent study, the 96-h LL50 for O. mykiss is > 100 mg/L (measured) neodecanoic acid. In sum, potassium neodecanoate has a low potential for acute toxicity to fish.

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