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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The 3 hr EC50 of Poly[oxy(methyl-1,2-ethanediyl)], alpha-(2-aminomethylethyl)-omega-(2-aminomethylethoxy)- to activated sludge microorganisms was found to be 750 mg/L. The NOEC was 310 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
750 mg/L
EC10 or NOEC for microorganisms:
310 mg/L

Additional information

A 3 h Activated Sludge Respiration Inhibition Test was conducted according to OECD Guideline 209 and GLP. The inoculum used was activated sludge of a predominantly domestic sewage. Concentrations tested were Control, 10, 32, 100, 320 and 1000 mg/L. Reference substance (3,5 dichlorophenol) validation with 3.2, 10 and 32 mg/L was run concurrently. The reference substance result was within required range, and control variability was valid. The 3 hr EC50 of Poly[oxy(methyl-1,2-ethanediyl)], alpha-(2-aminomethylethyl)-omega-(2-aminomethylethoxy)- to activated sludge was found to be 750 mg/L. The NOEC was 310 mg/L.