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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

There is one reliable (Klimisch 1) long-term toxicity study with aquatic freshwater algae available for the test substance, Dantocol DHE. The study was conducted to OECD 201 test guideline and according to GLP (SafePharm Laboratories, 2007). The study was conducted over 72-hours under static conditions with the freshwater algae (Desmodesmus subspicatusis) available and followed published study guidelines (SafePharm Laboratories, 2007). The 72-hour NOEC (growth rate and yield) was determined to be 100 mg/L based on nominal test concentrations.

This study result demonstrates that the test substance, Dantocol DHE, does not cause significant toxicity to freshwater algae, under the conditions of the test.

Key value for chemical safety assessment

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

Additional information