Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The nitrogen transformation activity of soil after treatment with 400160 was determined according to OECD 216. One valid experiment was performed. The study was performed using 5 concentrations (1000 / 1800 / 3200 / 5600 / 10000 mg/kg) of 400160. Quartz sand was used as carrier.
Key value for chemical safety assessment
Additional information
The nitrogen transformation activity of soil after treatment with 400160 was determined according to OECD Guideline 216.
One valid experiment was performed.
The study was performed using 5 concentrations (1000 / 1800 / 3200 / 5600 / 10000 mg/kg) of 400160. Sieved soil was amended with powdered plant meal and either treated with test item or left untreated. The soil was exposed to the test item for 28 days.
Quartz sand was used as carrier. The soil pH was not adjusted.
After 0 days and 28 days test duration, the nitrate content of the soil of each treatment was determined. A blank control was tested. All concentrations showed inhibition of nitrate production compared to the control. The resulting calculated 28d EC50 value was 2800 mg/kg. The relative standard deviation between the replicates of the blank control was 1.3 %, indicating the small difference between the replicates. Therefore the validity criterion was met and the result of the test can be considered valid.Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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