Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

In a ready biodegradability study, the test material was shown not to meet the criteria to be considered as readily biodegradable. The percentage degradation observed at 28 days, was comparable to that of the abiotic control, 42.8% and 47.2%, respectively. Thus, the observed reduction of DOC from the test vessel cannot be attributed to the microbial inoculum and is considered to be a result of hydrolytic instability. The test material did not have an inhibitory effect on the inoculums, shown by the toxicity control, 38.7% degradation was achieved by Day 4. The reference substance was determined to be readily biodegradable, indicating the acceptability of the inoculum activity and validity of the test procedure.

No further biodegradation tests were conducted. Direct and indirect exposure of surface water and sediment was considered unlikely, as was exposure to the soil compartment.