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Toxicity to aquatic algae and cyanobacteria

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Description of key information

In an algae toxicity test with D. subspicatus an ErC50 of >500 mg/L, related to the growth rate, was determined. The test substance is with high probability acutely not harmful to aquatic algae.

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Additional information

An aquatic algae toxicity test with Despodesmus subspicatus according to German Industrial Standard DIN38412 part 9 is available (BASF, 2/0056/89/t72, 1989). Algae were exposed to test substance concentrations of 0, 7.812, 15.625, 31.25, 62.5, 125, 250 and 500 mg/L for a period of 72 hours. The calculated ErC50 value after 72 hours in this study was >500 mg/L, related to the growth rate.