Registration Dossier

Diss Factsheets

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

For the terrestrial compartment three different test representing three trophic levels of the soil are available. Toxicity studies were performed in earthworm Eisenia fetida (OECD 207), in terrestrial plants (OECD 208) and in soil mircoorganisms (OECD 216).

No mortalities were observed for in the earthworm study (OECD 207) up to 1000 mg/kg soil dw, therefore the NOEC was determined to be > 1000 mg/kg soil bw.

In the terrestrial plant study (OECD 208) an influence to emergence ws not observed resulting in an NOEC > 1000 mg/kg soil dw for all three species. The influence on growth was determined to be: NOEC = 250 mg/kg soil dw and the influence on dry weight was NOEC = 62.5 mg/kg soil dw.

No negative effects were detected for nitrifing microorganism in an OECD 216 study. After 28 day the nitrate content was incresed compared to controls. The NOEC was set to be <62.5 mg/kg soil d.w. However since no adverse effects could be determined, the test item is considered to have no long-term adverse effects on nitrate formation in soil at concentrations up to and including 1000 mg test item/kg soil dry weight.

Based on the above mentioned test results the NOEC for the terrestrail compartment was considered to be : NOEC = 62.5 mg/kg soil d.w based on the plant study (OECD 208).