Registration Dossier
Registration Dossier
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EC number: 440-780-3 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (48 h) = 36.5 mg/l
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 36.5 mg/L
Additional information
The test substancewas tested in acute immobilisation test on Daphnia magna.
The test was performed according to method C.2 – Daphnia sp. Acute Immobilisation Test,Council Regulation (EC) No. 440/2008, published in O.J.L 142, 2008.
The preliminary test was performed in range of test substance nominal concentrations 1 – 100 mg·L-1. The analytical results from the preliminary test showed, that the test substance was stable in dilution water at conditions of the test.Based on the toxicity of the test substance found in preliminary test, the full test was performed in appropriate concentration range.
The full test was performed in range of test substance nominal concentrations 0,9 - 100 mg·L-1. Samples for analytical determination were taken at the beginning and at the end of the test. The analytical results showed that the test substance was stable in dilution water at conditions of the test, therefore the nominal concentrations were used for all evaluations and results. The test was performed as static.Test results:
24 hour - EC50> 100 mg·L-1(nominalconcentration)
48 hour - EC50= 35.6 mg·L-1(nominalconcentration)(95% confidence limit: 29.8 – 41.5 mg·L-1)
24 hour - NOEC= 9.0mg·L-1(nominalconcentration)
48 hour - NOEC<0.9 mg·L-1(nominalconcentration)
24 hour - EC100> 100 mg·L-1(nominalconcentration)
48 hour - EC100> 100 mg·L-1(nominalconcentration)
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