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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to soil microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Short-term EC50 for soil microorganisms:
528 mg/kg soil dw

Additional information

A nitrogen transformation test according to test guideline OECD 216 has been performed to examined soil microorganisms. Test substance concentrations up to 1000 mg/kg sdw has been incorporated into natural soil and the soil microorganisms were exposed for 28 days.

After 28 days of exposure, a significant inhibition of the microbial nitrate transformation was observed for the test item concentrations 250, 500 and 1000 mg/kg soil dry weight.

The no effect level (NOEC) has been determined to be 125 mg/kg sdw after 28 days exposure. The EC10 value for inhibition of the nitrate-N formation rate in soil has been calculated to 237 mg/kg sdw , the EC25 value has been 361 mg/kg sdw and the EC50 value has been determined to be 528 mg/kg sdw after 28 days.