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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Link to relevant study record(s)

Description of key information

An algal growth inhibition test was conducted by Bayer AG, Germany, to determine the effect of the test substance Azodicarbonamide on the aquatic environment. The study was conducted in compliance with GLP, and was performed according to EC test guideline C3 (Bayer AG 1998).
The biomass increase and growth rate of a culture of algae (Scenedesmus subspicatus) was monitored over a period of 72 hours in growth media containing a series of concentrations of the test substance. Test substance concentrations assesed were 0 (control), 5, 10, 20, 40, and 80 mg/L. The 72-hour ErC50 of the test substance ADCA in algae was determined to be greater than 36.1 mg/L.

Key value for chemical safety assessment

EC50 for freshwater algae:
36 mg/L

Additional information

One valid study available.