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Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

Analysis of the 56 and 100 mg/L test preparations at 0 and 48 hours showed measured test concentrations to be near nominal and so the results are based on nominal test concentrations.

Exposure of Daphnia magnato the test item gave the following results:

Time Point

(Hours)

EC50
(mg/L)

95% Confidence Limits (mg/L)

No Observed Effect Concentration (NOEC) (mg/L)

Lowest Observed Effect Concentration (LOEC) (mg/L)

48

>100

N/A

-

56

100

 

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
100 mg/L

Additional information

A study was performed to assess the acute toxicity of the test item toDaphnia magna. The method followed was designed to be compatible with the OECD Guidelines for Testing of Chemicals (April 2004) No 202, "Daphniasp., Acute Immobilisation Test" referenced as Method C.2 of Commission Regulation (EC) No. 440/2008.

Methods

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 10, 18, 32, 56 and 100 mg/L for 48 hours at a temperature of 21°C to 22°C under static test conditions. The number of immobilized daphnia were recorded after 24 and 48 hours.