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Ecotoxicological information

Toxicity to microorganisms

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Link to relevant study record(s)

Description of key information

Depending on local conditions and existing concentrations, disturbances in the biodegradation process of activated sludge are possible.

Key value for chemical safety assessment

Additional information

A study conducted in compliance with international standard guideline ISO 8192 investigating the respiration inhibition in domestic, activated sludge induced by aziridine determined an EC50 = 100 mg/L after 30 minutes (BASF AG, 1988).