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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

An inhibition of the degredation activity of activated sludge is not anticipated when epsilon-Caprolactam is introduced in appropriate low concentrations.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
1 737 mg/L

Additional information

As key study for the toxicity to microorganisms, a non-GLP test according to German Industrial Standard DIN 38412 part B using Pseudomonas putida as test organism is available (BASF 1998). This test resulted in an EC10 (17h) of 1737 mg/l.