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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

ErC50 72h Desmodesmus subspicatus  = 7.90 mg/l (measured initial concentrations; 95 % confidence limit: 4.19 – 15.16 mg/l).

EyC50 72h Desmodesmus subspicatus = 1.95 mg/l (measured initial concentrations; 95 % confidence limit: 1.43 – 2.66 mg/l).

Key value for chemical safety assessment

EC50 for freshwater algae:
7.9 mg/L

Additional information

4-anilinobenzenediazonium hydrogen sulphate was tested for growth inhibition on algae Desmodesmus subspicatus. The test was performed according to OECD TG 201 and the result was ErC50 72h Desmodesmus subspicatus = 7.90 mg/l (measured initial concentrations; 95 % confidence limit: 4.19 – 15.16 mg/l).