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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.

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Additional information

The toxicity of propyl acetate to microorganisms was tested in a cell growth inhibition test with Pseudomonas putida [Bringmann & Kühn, 1977]. The toxic threshold concentration, which is comparable with the EC5 was measured to be 170 mg/L after 16 h. A respiration inhibition test with activated sludge of a predominantly domestic sewage confirms the low toxicity on microorganisms [UCC, 1987]. In this test no inhibition observed up to a concentration of 1000 mg/L.