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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The 3 hr IC50 value for FAT 36038 was found to be >320 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
320 mg/L

Additional information

In a GLP compliant study, the toxicity of FAT 36038/F to activated sludge was determined in a 3-hours respiration inhibition test according to the OECD Guideline No. 209, and to the EEC Method No. L 133/118. The test substance concentrations tested were 320, 100, 32 and 10 mg/l. Based on the findings of the study, the 3h IC50 of the test substance FAT 36038/F was found to be > 320.0 mg/l.

A few studies performed to determine the toxicity of FAT 36038/A as growth inhibition in microorganisms according to Internal Method B-10 reported 12 hr IC50 greater than 300 mg/L.

Based on the data from these studies the 3 hr IC50 of FAT 36038 can be considered to be greater than 300 mg/L.