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EC number: 246-805-2 | CAS number: 25306-75-6
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
On a molecular weight scaled basis, the 1d EC50 would be 22.6 mg/kg soil dw. (10x 172.24) /76.13 =22.6 mg/kg soil dw
After fumigation of soils with CS2 the microbial metabolism of soil was seriously affected. At 10 mg CS2/kg the nitrification was completely inhibited.
Key value for chemical safety assessment
- Short-term EC50 for soil microorganisms:
- 22.6 mg/kg soil dw
- Long-term EC10 or NOEC for soil microorganisms:
- 0.95 mg/kg soil dw
Additional information
On a molecular weight scaled basis, the EC50 would be 22.6 mg/kg soil dw. (10x 172.24) /76.13 =22.6 mg/kg soil dw After fumigation of soils with CS2 the microbial metabolism of soil was seriously affected. At 10 mg CS2/kg the nitrification was completely inhibited.
The nitrification in three soil types was inhibited by CS2. The 5-d EC50 in Harps clay loam soil was 0.21 mg/kg soil dw and the 14-d EC50 was 2.1 mg/kg soil dw.
On a molecular weight scaled basis, the EC50 would be 4.75 mg/kg soil dw. (2.1 x 172.24) /76.13 =4.75 mg/kg soil dw(NOEC=0.95 mg/kg soil)
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