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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The inhibition of the degradation activity of activated sludge is not anticipated when methacrylaldehyde is introduced in appropriate low concentrations.

Key value for chemical safety assessment

Additional information

The toxicity to microorganisms was determined in a GLP short-term respiration test according to OECD guideline 209 using domestic sludge. After 30 min an EC20 of ca. 180 mg/L was determined (BASF, 2005).