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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Activated sludge collected from the recirculation tank of a municipal wastewater treatment plant was incubated for 3-hours with different concentrations of the test item (10.0, 17.8, 31.6, 56.2 and 100.0 mg/L). In addition to the five test item concentrations, two untreated controls were incubated under the same conditions. No inhibition of respiration was observed at any of the tested concentrations. The NOEC is 100 mg/L (Neri 2010b).

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
100 mg/L

Additional information

Test performed with an analogue. A rationale for the read-across is included in chapter 13.