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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Key value for chemical safety assessment

EC50 for microorganisms:
13 mg/L
EC10 or NOEC for microorganisms:
4.6 mg/L

Additional information

A non-guideline study on inhibition of luminescence in Photobacterium posphoreum was carried out in open vessels. The 15-min EC50 of CS2 for Photobacterium posphoreum luminescence was found to be 341 mg/L in this study.The inhibition of the oxygen consumption of a mixed bacterial population (activated sludge) by CS2 was studied in a closed system according to German guideline DEV-L 9.The EC50 was 13 mg/L, the EC 10 was 4.6 mg/L and the EC100 was 100 mg/L.