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EC number: 244-600-2 | CAS number: 21829-52-7
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The EC50 value for specific growth rate after 72h was 39 mg/L, with a NOEC of 6.25 mg/L, based on data from a OECD 201 in D.subspicatus.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 39 mg/L
- EC10 or NOEC for freshwater algae:
- 6.25 mg/L
Additional information
The effect of the test item on the growth of Desmodesmus subspicatus has been investigated over a 72-Hour period and gave the following results:
Growth Rate: EC50: 39 mg/L* ; NOEC: 6.25 mg/L; LOEC: 12.5 mg/L
Yield: EC50: 11 mg/L (95% confidence limits: 10 - 13 mg/L); NOEC: 6.25 mg/L; LOEC: 12.5 mg/L
* It was not possible to calculate 95% confidence limits for the ErL50 value as the data generated did not fit the models available for the calculation of confidence limits.
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