Registration Dossier
Registration Dossier
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EC number: 939-039-1 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The loading rate of test item causing a 50 % reduction in mobility was estimated to be higher than 1000 mg/L. The 48h EC50 based on the TOC content was estimated to be higher than 7.41 mgC/L.
Key value for chemical safety assessment
Additional information
The acute toxicity (inhibition of mobility) of the test item for a duration of 48 hours was assessed according to the OECD Guideline 202.
Daphnia magna were exposed under static conditions to WAF solutions with loading rates of 1, 10, 100 and 1000 mg/L (WAF) in dilution water, as the test item is highly insoluble. Concentrations were assessed based on the Total Organic Carbon content. The analytical results obtained confirmed that the test item is highly insoluble. However, as the test item is an UVCB and as a WAF solution was prepared, the TOC concentrations measured are the concentrations of the soluble part of the item item and are not representative of all the UVCB. Therefore, the effect concentrations used for risk assessment has to be based on the loading rates. Therefore, the loading rate of test item causing a 50 % reduction in mobility was estimated to be higher that 1000 mg/L. The 48h EC50 based on the TOC content was estimated to be higher than 7.41 mgC/L.
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