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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Based on read across, alkenes C11/13/14 are not inhibitory to microrganisms at a concentration of 2mg/l

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Additional information

Miller and Watkinson (1984) investigated the toxicity of alkenes C10 -14 to activated sewage sludge as part of a ready biodegradability screening test. The study was conducted to standard guidelines (OECD 301D) and the validity criteria of the test guideline were met. After 5 days >25% biodegradation was observed in the test vessels containing both test and reference material. Therefore, microbial respiration was not found to be significantly inhibited at the concentration tested. In the same study (Miller and Watkinson, 1984) the toxicity of alkenes C10 -14 to Pseudomonas fluoresens was also investigated following a TNO guideline. This study found the IL50 to be >1000 mg/l.