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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

EU Method C.3, Algal inhibition test, Directive 92/69/EEC, Published in OJ L 383A, 1992. 
GLP study

Key value for chemical safety assessment

EC50 for freshwater algae:
65.7 mg/L
EC10 or NOEC for freshwater algae:
52.4 mg/L

Additional information

The test substance was tested for growth inhibition on algae.

The full test was performed in range of test substance nominal concentrations 21 - 100 mg·L-1.

For all evaluations and results were used the concentrations measured at the beginning of the test.

Test results:

72 hour - EbC50 = 65.7 mg·L-1 (determined concentration) (95% confidence limit: 54.8 – 76.6 mg·L-1)

72 hour - ErC50 > 89.2 mg·L-1(determined concentration)

72 hour - NOECb = 52.4 mg·L-1 (determined concentration)

72 hour - NOECr = 69.1 mg·L-1 (determined concentration)