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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

Activated sewage sludge micro organisms

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L

Additional information

A limit test at the concentration of 1000 mg/L was performed based on results from a preliminary range-finding test. The effect of the test substance on the respiration of activated sewage sludge micro organisms gave a 3 hours EC50 > 1000 mg/l. An NOEC of 1000 mg/l for microorganisms was derived. Based on this study the PNEC stp value was calculated. The NOEC value derived from the study indicates no toxicity to microorganisms