Registration Dossier
Registration Dossier
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EC number: 215-150-4 | CAS number: 1306-38-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Sediment (marine water)
- Hazard assessment conclusion:
- insufficient hazard data available (further information necessary)
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Bulk form
All the justifications given above for no PNEC derivation applied to the bulk form of cerium dioxide.
Nano form
As explained in several endpoint summaries of IUCLID sections 5 and 6, numerous recent publications on the environmental effects of the nano form of cerium dioxide are under investigation. PNEC derivation will be considered once these references will have been analysed; and this, in view of the CoRAP evaluation of cerium dioxide planned in 2021. An update of the dossier will be submitted in the coming months with this aim in view.
Conclusion on classification
Bulk form
As an inorganic substance, cerium dioxide is not biodegradable. Based on the analogy made with soluble salts of cerium, cerium dioxide should not show any potential for bioaccumulation. Short-term tests performed on the three trophic levels (i.e. fish, daphnids, algae) does not reveal any acute toxicity. Furthermore, the long-term data on daphnids indicates that cerium dioxide presents no chronic adverse effects on this species. As a result, cerium dioxide is not classified regarding its environmental impacts, neither under the criteria of CLP, nor under those of DSD.
Nano form
As explained in several endpoint summaries of IUCLID sections 5 and 6, numerous recent publications on the environmental effects of the nano form of cerium dioxide are under investigation. Environmental classification will be established once these references will have been analysed; and this, in view of the CoRAP evaluation of cerium dioxide planned in 2021. An update of the dossier will be submitted in the coming months with this aim in view.
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.
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