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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Activated slugde_OECD 209: EC10(3h): 350 mg/L, EC50(3h) > 1000 mg/L, EC80(3h) > 1000 mg/L

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L
EC10 or NOEC for microorganisms:
350 mg/L

Additional information

Possible effects of the test compound on the inhibition of oxygen consumption were determined in an activated sludge respiration inhibition test (BASF SE, 2013). The study was performed in accordance to OECD Guideline 209 and EU Method C.11 (2008). Activated sludge from a municipal wastewater treatment plant served as inoculum. Nominal test concentrations were 1000, 500, 250, 125, 62.5 mg/L as well as a blank control. A EC10(3h) of 350 mg/L was observed. Both, EC50(3h) and EC80(3h), were >1000 mg/L.