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Ecotoxicological information

Toxicity to microorganisms

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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

In a GLP-study following OECD Guideline 209, activated sludge from laboratory wastewater treatment plants fed with municipal and synthetic wastewater was exposed to HDDA. The resulting EC20 (30 min) was determined to be 60 mg/L [BASF SE 1998].