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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

In the EU riskassessment of 2005 this study was considered the key study to be used for deriving the PNEC (Noack, 1992). The study of Kuehn et al., 1990 supports this value. Data was used from MCA and SMCA together since in the environment the sodium salt disassociates rapidly due to intrinsic properties (see EU RAR 2005)

Key value for chemical safety assessment

EC50 for freshwater algae:
0.033 mg/L
EC10 or NOEC for freshwater algae:
0.006 mg/L

Additional information

Data was used from MCA and SMCA together since in the environment the sodium salt disassociates rapidly due to intrinsic properties (see EU RAR 2005)