Registration Dossier

Ecotoxicological information

Toxicity to soil microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

In accordance with Regulation (EC) No. 1907/2006, Annex X, section 9.4, column 2, further studies on the effects on terrestrial organisms do not have to be conducted since the chemical safety assessment indicates that there is no need. The terrestrial toxicity of Betaines, C12-14 (even numbered)-alkyldimethyl has been tested on the earth-worm Eisenia fetida. No effects for mortality, growth, reproduction and feeding activity were observed during the 56-day exposure period at the test concentration of 1,000 mg/kg soil dw, the highest concentration tested.

Moreover, the substance is readily biodegradable and shows no inhibition to aquatic microorganisms. Based on the available data, no toxicity of Betaines, C12-14 (even numbered)-alkyldimethyl to soil microorganisms is expected. Additionally, the substance is not expected to remain in the terrestrial environment, due to readily biodegradation and low adsorption potential, reducing the potential of chronic exposure.

Based on this information, toxicity to soil microorganisms is not expected to be of concern, and consequently, no further testing is required.