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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Under the conditions of OECD guideline 201 the test substance titanium nitride is not toxic to algae (P. subcpitata).

Key value for chemical safety assessment

EC10 or NOEC for freshwater algae:
100 mg/L

Additional information

In a 72 hour acute toxicity study, the cultures of Pseudokirchneriella subcapitata were exposed to titanium nitride at nominal concentrations of 0 (control), 6.25, 12.5, 25, 50 and 100 mg/L under static conditions in accordance with OECD guideline 201.  The NOEC and EC50 values based on growth rate were 100 mg/L and > 100 mg/L, respectively.

This toxicity study is classified as acceptable and satisfies the guideline requirements for a study investigating the aquatic acute toxicity to algae.

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