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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Toxicity to microorganisms: 3hr EC10 17.1 g/l (DIN 38412, Pseudomonas putida)

Key value for chemical safety assessment

Additional information

A growth inhibition study with Pseudomonas putida gave an EC10 of 17.1 g/l and an EC50 of 3342 g/l. The test method was modified to take into account the volatility of the substance(teflon-coated vessels, with gas-tight aluminum caps, of total volume approx. 120 ml were used). Concentrations were measured based on headspace GC analysis. Due to the volatility of the substance, it is likely that the dissolved concentrations were much less. It is likely that the limit of solubility would have been reached. The substance did show some toxicity to microorganisms under the closed conditions of the test; however, it is considered unlikely that sufficient concentrations for toxicity would be reached in a standard sewage treatment plant.