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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The short term toxicity of ditantalum pentaoxide to aquatic invertebrate was studied in Daphnia magna and was determine to have an EC0 of ≥ 1 mg/L in freshwater according to a key study (Müller, 2001) performed in line with standardised guideline EU Method C.2.

Key value for chemical safety assessment

Additional information

The key study (Müller, 2001) was conducted in line with GLP and standardised guidelines with a sufficient level of detail to assess the quality of the study. Daphnia magna was exposed under static freshwater conditions to the test material for 48 hours. The invertebrates were exposed to the test material at a nominal concentration of 1 mg/L. Under the conditions of the test no fatalities or systematic effects of toxicity were observed. The study determined the ECof the test material to be ≥1 mg/L where the EC₅₀ is above the limits of solubility.

The study was performed to a good standard and was assigned a reliability score of 1 using the principles for assessing data quality as set out in Klimisch (1997).