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Short-term toxicity to aquatic invertebrates

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Description of key information

The acute toxicity of FAT 40061/D to Daphnia magna was determined in a 48-hour static test according to the OECD Guideline for Testing of Chemicals, Section 2, No. 202, adapted 4 April 84, and EEC Directive 84/449, L 251, Part C 2.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
189 mg/L

Additional information

The acute toxicity of FAT 40061/D to Daphnia magna was determined in a 48-hour static test according to the OECD Guideline for Testing of Chemicals, Section 2, No. 202, adapted 4 April 84, and EEC Directive 84/449, L 251, Part C 2.

The test was performed in compliance with the Good Laboratory Practice Regulations.

The nominal concentrations tested were 18, 32, 58, 100 and 180 mg test article/l, and a control without any additions.

During test duration the test article concentrations in the analysed test media were in the range of 103.7 - 107.2 of the nominal values. Therefore, under test conditions the test article was sufficiently stable.

In all test concentrations no alteration of the test substance after 48 hours was observed. The reported results are related to the analytical concentrations of the test article.

In the control and in all test concentrations no immobilization of the daphnias’ was observed after 48 hours. The EC0 values is at least 189.0 mg /l , but might even be higher than this concentration. The EC50 and EC100 values are clearly higher than 189.0 mg /l.

Therefore, the EC50 value could not be calculated.

Results:

EC0: > = 189.0 mg/l

EC50: > 189.0 mg/l

EC100: > 189.0 mg/l

Reference substance:

Potassium dichromate (EC50: 1.00 mg/l)