Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

To assess the biotic degradation of the registered substance, a weight of evidence approach was performed with six ready biodegradability tests using different OECD Guideline test methods. Based on these studies, the registered substance is not considered readily biodegradable but strong and consistent evidence of significant mineralisation to the main degradation product, Delta-Damascone mercapto acetic acid (DD-ma) was provided. All larger metabolites found (e.g. Delta-Damascone mercapto propionic acid (DD-mp)) can be considered as transient intermediates. Therefore, the registered substance is considered inherently biodegradable (not fulfilling specific criteria) and not persistent. The principal metabolite, DD-ma, is slowly degraded and in the absence of other biodegradation study on this metabolite, DD-ma is considered as potentially persistent (P) or very persistent (vP).

Additional information