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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Link to relevant study record(s)

Description of key information

The acute toxicity of Desmodur MT to Alga (Desmodesmus subspicatus former name: Scenedesmus subspicatus) was tested to EEC Methods for Determination of Ecotoxicity Annex to Directive 92/69/EEC (0.J. No. L383A, 29.12.92) Part C, Method 3 'Algal inhibitiontest'.

During 72 hours exposure an ErC50 of >100 mg/L and an EbC50 of >100 mg/L was measured (Bayer Industry Services, 2006).

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L

Additional information

Should read >100 mg/L.