Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

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.