Registration Dossier

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The 48-hour EC50 based on the mean measured concentrations was 0.38 mg/L (95% CL = 0.32 - 0.46 mg/L). The NOEC based on immobilisation was 0.19 mg/L.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
0.38 mg/L

Additional information

In a key study performed to OECD 202 and EC Method C2 the 48–hr-acute toxicity of test substance to Daphnia magna was studied under static conditions. Daphnids were exposed to control, and test chemical at the mean measured test concentrations of 0.041, 0.059, 0.10, 0.19, 0.30, 0.61, 1.1, 2.0 and 3.2 mg/L. Immobilisation was observed at 24 and 48 hrs.

The 48-hour EC50 based on the mean measured concentrations was 0.38 mg/L (95% CL = 0.32 - 0.46 mg/L). The NOEC based on immobilisation was 0.19 mg/L.

This study is classified as acceptable and satisfies the guideline requirements for an acute toxicity study with freshwater invertebrates.