Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Determination of the acute toxicity of the test item, FAT 20341/A TE, to Daphnia magna
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 53 mg/L
Additional information
The study was performed to assess the acute toxicity of the test item to Daphnia magna.
Following a preliminary range-finding test, twenty daphnids (4 replicates of 5 animals) were exposed to an aqueous solution of the test item at concentrations of 1.0, 3.2, 10, 32 and 100 mg/L for 48 hours at a temperature of approximately 20°C under static test conditions. The number of immobilized daphnia were recorded after 24 and 48 hours.
Results:
Analysis of the 10, 32 and 100 mg/L test preparations at 0 and 48 hours showed measured test concentrations to range from 94% to 99% of nominal value and so the results are based on nominal test concentrations only.
Exposure ofDaphnia magnato the test item gave the following results:
Time Point (Hours) |
EC50 |
95% Confidence Limits (mg/L) |
No Observed Effect Concentration (NOEC) (mg/L) |
Lowest Observed Effect Concentration (LOEC) (mg/L) |
||
48 |
53 |
48 |
- |
60 |
10 |
32 |
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