Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Short-term toxicity to fish

Danio rerio was exposed under static conditions for 96 h to four nominal concentrations (3.16, 10, 31.6, 100 mg/L) of C.I. Direct Blue 264.

The following values were determined: LC0(96h) = 31.6 mg/L, LC100(96h) = 100 mg/L, geometric mean (LC0/LC100) = 56.2 mg/L.

 

Short-term toxicity to aquatic invertebrates

Dapnia magna was exposed under static conditions for 48 h to one concentration (100 mg/L) of C.I. Direct Blue 264. No toxic effect was observed.

 

Toxicity to aquatic algae

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.

 

Toxicity to microorganisms

For C.I. Direct Blue 264 an EC10 of 419 mg/L and an EC50 of 3490 mg/L were obtained in a test for toxicity to microorganisms. The effect values relate to nominal concentrations, since no analytical monitoring was performed.