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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The No Observed Effect Concentration (NOEC) of decan-1,2-diol to sewage treatment plant micro-organisms is 20 mg/L.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
20 mg/L

Additional information

According to the ECHA Guidance document R7b, no further test on the toxicity to microorganisms has to be conducted if the toxicity control in a ready biodegradability test shows no inhibitory effects on microorganisms. The toxicity of the test item to activated sewage sludge was taken from the toxicity control of a GLP-compliant ready biodegradability Manometric Respirometry test following OECD guideline 301F (Maischak 2015). The study is considered reliable and relevant for use for this endpoint. The No Observed Effect Concentration (NOEC) of decan-1,2-diol to sewage treatment plant micro-organisms is 20 mg/L.