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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

In a 48 h short-term toxicity test with Daphnia magna, the EC50 of TCD alcohol DM was determined to be > 100 mg/L (highest concentration tested).

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
100 mg/L

Additional information

For the assessment of the short-term toxicity of TCD Alcohol DM to aquatic invertebrates, one test is available. This study (Bouwman/NOTOX, 2010a) was performed according to OECD test guideline 202 under GLP conditions resulting in high reliability and is used as key study.

 

The acute toxicity of TCD Alcohol DM to Daphnia was studied under static conditions. Daphnids were exposed to concentrations of 0, 0.1, 1.0, 10, and 100 mg/L of test chemical for 48 h (water soluble fraction 100 mg/L and 0.1, 1.0, and 10% dilutions, analytical value for water soluble fraction 110 mg/L). Immobilization was observed daily.

 

No significant immobilization was noticed during the test. 10% immobilisation in the highest dose group (100 mg/L) was regarded not to be significant as 10% immobilisation in controls is considered acceptable.

 

The 24 and 48 h EC50 was > 100 mg/L. The NOEC based on immobilisation was 100 mg/L (Bouwman/NOTOX, 2010a).