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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

No toxic effects against daphnia were observed at the limit of water of solubility under exposure conditions.

Key value for chemical safety assessment

Additional information

A study was performed to assess the acute toxicity of Triazin UV-Absorber to Daphnia magna STRAUS. The study was conducted in accordance with the OECD Guideline for Testing of Chemicals No. 202 'Daphnia sp., Acute Immobilisation Test' (adopted April 13, 2004).

The Daphnia were exposed to concentrations of nominally 1.0 mg/L; 10 mg/L; 100 mg/L of Triazin UV-Absorber dissolved in water and a blank control (0 mg/ L).

Auxiliaries used to prepare the test item was a blade mill and for the test media a magnetic stirrer.

Observations were made on the swimming ability and the immobilisation rate after 24 and 48 hours of exposure. In this 48-hour acute toxicity study the following immobility values were determined based on nominal concentrations:

 

after 48 h

EC 0 [mg/L]       > 100

EC 50 [mg/L]     > 100

EC 100 [mg/L]   > 100

 

No toxic effects against daphnia were observed at the limit of water solubility.