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Toxicity to microorganisms

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An activated sludge respiration inhibition test was conducted by Bayer Industry Services (2007) according to OECD 209 and EU Method C.11. The oxygen content was measured at three concentrations (100, 1000 and 10000 mg/L) over a period of 3 hours. The 3h-EC50 was found to be >10000 mg/L indicating that the test substance does not pose a significant risk to bacteria populations colonising sewage sludge.
EC50: >10000 mg/L

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