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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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

The test item QAM 501 induced immobilisation to the exposed Daphnia within 48 hours. The EC50 value was 2.1 mg/L. The NOEC was 1.0 mg/L.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
2.1 mg/L

Additional information

The test item was tested in the Acute Daphnia Toxicity Test according to the OECD Guideline No. 202 using Daphnia magna (Straus) as test organism. The experiment was carried out as a static test with the following test item concentrations: 0.5, 1, 2, 4 and 8 mg/L medium. Twenty-five daphnia were exposed to each concentration and the control. The test item induced immobilisation to the exposed Daphnia within 48 hours. The EC50 value was 2.1 mg/L, the NOEC was 1.0 mg/L.

The result is supported by an Acute Daphnia Toxicity Study with the test item were the EC50 value was 2.2 mg/L, the NOEC was 0.9 mg/L calculated both for the active ingredient.