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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

NOEC (3 h): ≥ 1000 mg/L for activated sludge microorganisms (OECD 209)

Key value for chemical safety assessment

Additional information

One experimental study is available investigating the toxicity of isononyl isononanoate to activated sludge microorganisms (Barthel, 2010). The study was performed according to OECD 209 (non-GLP) using activated sludge of a predominantly domestic sewage as inoculum. Five concentrations were tested (10, 31.6, 100, 316 and 1000 mg/L). No inhibition of respiration rate was measured after 3 h of incubation. Thus, a NOEC of ≥ 1000 mg/L was derived.