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Toxicity to aquatic algae and cyanobacteria

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Concerning the algal toxicity of 1,5-naphthylenediamine for Desmodesmus subspicatus a test was performed according to DIN-Norm 38412 L 9 (Bestimmung der Wirkung von Wasserinhaltsstoffen auf Grünalgen). An 72-hour EC50 of 2.8 mg/L related to growth rate and nominal concentration was obtained. (Bayer AG, 1990)

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