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Toxicity to aquatic algae and cyanobacteria

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In the assessment of fatty acids, C9 -13 neo, potassium salts, read-across to the assessment entities soluble potassium substances and neodecanoic acid is applied since the ions of fatty acids, C9 -13 neo, potassium salts determine its fate and toxicity in the environment. Potassium is an essential macronutrient for algae and cyanobacteria, a component of all aquatic algae test media (OECD TG 201, 2006) and has a very low potential for toxicity. The toxicity of neodecanoic acid was evaluated in freshwater, yielding a 72-h EL50 of >100 mg/L for the inhibition of growth of P. subcapitata. Thus, fatty acids, C9 -13 neo, potassium salts has a low potential for toxicity to aquatic algae and cyanobacteria.

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