Registration Dossier
Registration Dossier
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EC number: 700-945-5 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The acute toxicity of the test material to the freshwater invertebrate Daphnia magna has been investigated and gave a 48 hour EL50 of greater than 100 mg/L loading rate WAF. The No Observed Effect Loading rate was 100 mg/L.
Key value for chemical safety assessment
Additional information
Introduction
A study was performed to assess the acute toxicity of the test material to Daphnia magna. The method followed that described in the OECD Guidelines for Testing of Chemicals (1984) No. 202, referenced as Method C.2 of Commission Directive 92/69/EEC.
Methods
Following a preliminary range-finding test, forty daphnids (4 replicates of 10 animals) were exposed to a Water Accommodated Fraction (WAF) of the test material, at a single nominal loading rate of 100 mg/L for 48 hours under static test conditions. Immobilisation and any adverse reactions to exposure were recorded after 24 and 48 hours.
Results
The 48 hour EL50 for the test material to Daphna magna was greater than the 100 mg/L loading rate WAF and the No Observed Effect Loading rate was 100 mg/L. It was considered unnecessary and unrealistic to test at loading rates in excess of 100 mg/L.
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