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Environmental fate & pathways

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Carbon disulfide is a readily biodegradable substance, with more than 80% of CS2 biodegraded after 28 hours of exposure. The test substance does not have any affinity to sediment or soil, it has a log Koc << 3 and its Kow < 3 . Also, direct emission to soil or sediment do not occur. And finally, the evaporation half-life of CS2 from surface waters and soil is in the order of hours ( high vapour pressure 39.8 kPa at 293 K). Based on exposure considerations and the fact that CS2is readily biodegradable, the performance of the biodegradation test for both sediment and soil are scientifically unjustified.