Registration Dossier
Registration Dossier
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EC number: 214-703-7 | CAS number: 1187-93-5
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: sediment 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 sediment is unlikely
- other:
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
The gaseous nature of the substance indicates the difficulty to properly test PMVE and provide meaningful results of its biodegradation in aqueous systems as well as in sediment.
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). - Transformation products:
- not specified
- Endpoint:
- biodegradation in water: simulation testing on ultimate degradation in surface water
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- other:
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
The gaseous nature of the substance indicates the difficulty to properly test PMVE and provide meaningful results of its biodegradation in aqueous systems as well as in sediment.
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). - Transformation products:
- not specified
Referenceopen allclose all
Description of key information
No experimental data on PMVE biodegradation in water and sediment are available. In fact, on the grounds of the physico-chemical properties and environmental fate assessments of the substance, no significant exposure of the aquatic environment 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 sediment.
Key value for chemical safety assessment
Additional information
The biodegradation studies in surface water and in sediment (required in sections 9.2.1.2 and 9.2.1.4, respectively) of REACH (Regulation (EC) No 1907/2006) Annex IX, are not proposed by the registrant as PMVE is a gas at ambient condition with a limited water solubility and an high tendency to rapidly volatilise from water.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
