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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Read across to According to Ammonium thioglycolyte

Key value for chemical safety assessment

EC50 for microorganisms:
530 mg/L
EC10 or NOEC for microorganisms:
32 mg/L

Additional information

In 2004, the assessment of the inhibitory effect of Ammonuim thioglycolate on the respiration of activated sewage sludge

was carried out by Clarke according to OECD Guideline 209 and GLP requirements. Based on the results of this study,

the effect of the test material on the respiration of activated sewage sludge micro-organisms gave a 3-Hour EC50 of 530 mg ai/l. The No Observed Effect Concentration (NOEC) after 3 hours exposure was 32 mg ai/l. EC50 -30min was of 820 mg/L.