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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Pseudokirchneriella subspicata were exposed for 72 h in an OECD 201 test. The EC50 for growth rate was determined to be 0.00221 mg/l based on mean  measure concentrations , whereas the NOEC for growth rate was determined to be 0.00143 mg/l based on mean  measure concentrations.  

Key value for chemical safety assessment

EC50 for freshwater algae:
0.002 mg/L
EC10 or NOEC for freshwater algae:
0.001 mg/L

Additional information

Pseudokirchneriella subspicata were exposed for 72 h in an OECD 201 test towards the test substance. The EC50 for growth rate was determined to be 0.00221 mg/l based on mean measure concentrations and 0.0322 mg/l based on mean measured concentration at the start of exposure. The NOEC for growth rate was determined to be 0.00143 mg/l based on mean measure concentrations and 0.00466 mg/l based on mean measured concentration at the start of exposure.