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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Inhibition of degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.

Key value for chemical safety assessment

Additional information

Results of toxicity tests towards aquatic microorganisms show, that ammonium carbamate is not harmful to bacteria. In a short term respiration test, performed similar to OECD guideline 209, an EC20 of 1000 mg/l within 30 min was determined (BASF AG 1990). This is supported by a single species test, performed according to a German guideline (DIN 38412, part 8) using Pseudomonas putida as test bacterium. This test resulted in an EC10(16h) of 830 mg/l.