Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Two studies regarding the biodegradability of the registered substance are available, but only one was considered valid.

According to the key biodegradation study (OECD Guideline 301F), the registered substance is readily biodegradable (67.6 % biodegradation after 28 days of incubation), but does not fulfill the 10-day window criteria. 60% of biodegradation which was reached just after the 10-day window, on the 18th day of experiment (with the measurement just below 10% occurring on day 7).

The second available study (EU Method C.4 -E) showed that 50 % of the registered substance biodegraded after 36 days and that the pass-level was almost reached, but the 10-day window criteria was not fulfilled either. As the substance was dissolved in a partially biodegradable solvent, it cannot be ascertained directly to what extent the chloroform degradaded in the solutions containing test substance. Consequently, the results of this study are not interpretable and the study is considered technically invalid.

In conclusion, according to the first biodegradation study (OECD Guideline 301F), the registered substance is readily biodegradable but does not fulfill the 10-day window criteria.

The registered substance has a log Kow of 1.3, suggesting that it does not have an important affinity for lipids present in organisms, and has consequently a low potential of bioaccumulation.

Additional information

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