Registration Dossier
Registration Dossier
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EC number: 223-055-4 | CAS number: 3710-84-7
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The study was performed using 5 treatments of 10 / 32 / 100 / 320 / 1000 mg/kg nominal concentration. Sieved soil was exposed to the test item for 28 days. After 0 and 28 days, the nitrate content of the soil of each replicate was determined. A blank control was tested. Only the highest concentration showed significant inhibition of nitrate production compared to the control. NOEC was determined as 320 mg/kg soil dry weight.
Key value for chemical safety assessment
- Long-term EC10 or NOEC for soil microorganisms:
- 320 mg/kg soil dw
Additional information
The study was performed according to the OECD 216 guideline. The experimental design was in triplicate, using 5 treatments of 10 / 32 / 100 / 320 / 1000 mg/kg soil dry weight nominal concentration and a control. A sieved natural soil was used. Each replicate was exposed to a relevant amount of test item for 28 days. After 0 and 28 days, the nitrate content of the soil of each replicate was determined. A blank control was tested. Only the highest concentration showed significant inhibition of nitrate production compared to the control. NOEC was determined as 320 mg/kg soil dry weight.
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