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Toxicity to microorganisms

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Volskay and Grady, 1988
In a respiration inhibition test according to the OECD test guideline 209, modified in order to avoid the volatilisation of the test compound, activated sludge was exposed to o-chlorobenzene in a closed system during 30 minutes. The highest concentration tested was that of the water solubility. The EC50 obtained was 140 mg/L, nominal.

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