Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Based on the results of a reliable guideline study with a structural analogue prednisolone, Prediac-Z is considered not readily biodegradable.

Additional information

In a reliable guideline study with a structural analogue of Prediac-Z, prednisolone, the following biodegradation was determined at the end of the 28-d period:

- Prednisolone 2 mg/L:       38.2%

- Na benzoate 2 mg/L:       70.5%

- Toxicity control:              41.6%

Based on this the test item is considered as not readily biodegradable. This result can be read across to Prediac-Z.