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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Environmental fate & pathways

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
biodegradation in soil: simulation testing
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because direct and indirect exposure of soil is unlikely
other:
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
According to Annex XI section 2 testing for a specific endpoint may be omitted if it is technically not possible to conduct the study as a consequence of the properties of the substance.
The gaseous nature of the substance indicates the difficulty to properly test PMVE and provide meaningful results of its biodegradation in soil.

Moreover, no significant release to the environment is expected and in case of an accidental emission, on the grounds of the physico-chemical properties of PMVE (gas at ambient conditions with limited water solubility) and the results of the environmental fate obtained from EQC Fugacity III Model (Version 2.02, The Canadian Centre for Environmental Modelling and Chemistry, May 2003), the substance is expected to primarily and rapidly distribute to the atmosphere, where it is rapidly degraded by reactions with photochemically produced hydroxyl radicals (OH). In accordance with section 2 of REACH (Regulation (EC) No 1907/2006) Annex IX, the biodegradation in soil study (required in section 9.2.1.3) is not proposed by the registrant because direct or indirect exposure of soil is unlikely to occur.

Transformation products:
not specified

Description of key information

No experimental data on PMVE biodegradation in soil are available. In fact, on the grounds of the physico-chemical properties and environmental fate assessments of the substance, no significant exposure of the soil is expected. Moreover the substance profile itself indicates the difficulty to properly test PMVE and provide meaningful results of its biodegradation in aqueous systems as well as in soil.

Key value for chemical safety assessment

Additional information

The biodegradation study in soil (required in section 9.2.1.3 of REACH (Regulation (EC) No 1907/2006) Annex IX, is not proposed by the registrant because, due to the physico-chemical properties of the substance, direct or indirect exposure of soil is unlikely to occur.