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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Link to relevant study record(s)

Description of key information

For C.I. Direct Blue 264 no toxic effects against algae were observed at a limit test concentration of 100 mg/L over a period of 72h. 

Key value for chemical safety assessment

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

Additional information

No effect was observed up to 100 mg/L. Hence the EC50 is >100 mg/L and the NOEC is >= 100 mg/L.