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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

One reliable study is available for the registered mixture. The mixture exhibits an ErC50 for freshwater algae higher than 100 mg/L and a NOErC of 25 mg/L based on growth rate inhibition.

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L
EC10 or NOEC for freshwater algae:
25 mg/L

Additional information

The toxicity to aquatic algae was studied according to OECD TG No. 201 and Test Method C.3 from Commission Regulation (EC) No. 440/2008 under GLP¨compliance. All validity criteria were met and therefore the test can be considered to be valid.

The following values were determined:

NOEC Growth Rate and yield = 25 mg/L

EC10 Growth rate= 24 mg/L

EC 50 Growth rate > 100 mg/L

EC 50 Yield = 85 mg/L

These results were assessed to be suitable for chemical risk assessment, PBT assessment and classification and labelling purposes.