Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The test item was considered to be not inherently biodegradable.

Additional information

A study was performed to assess the inherent biodegradability of the test item in an aerobic aqueous media according to OECD Guideline 302B, EU Method C.9 and US EPA Test Guideline OCSPP 835.3200. In this study, the test item was exposed to activated sewage sludge micro-organisms at a concentration of 100 mg carbon/L with mineral medium in the dark at temperatures of between 20 and 25 ºC for 28 days. The biodegradation of the test item was assessed by the determination of dissolved organic carbon removal. Control cultures with inoculum and the reference item, diethylene glycol and a toxicity control were used for validation purposes. The test item attained 0% biodegradation after 28 days. The test item cannot therefore be considered as inherently biodegradable under the experimental conditions employed in this study.