Registration Dossier
Registration Dossier
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EC number: 207-439-9 | CAS number: 471-34-1
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
- Endpoint:
- long-term toxicity to aquatic invertebrates
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
Reference
Description of key information
No reliable long-term studies on invertebrates are available.
Key value for chemical safety assessment
Additional information
Both calcium and carbonate ions are extremely common in all natural surface waters and are therefore ubiquitous in the environment. This natural abundance of calcium and carbonate ions in the environment means that aquatic organisms including invertebrates are constantly exposed to calcium carbonate without suffering from any adverse or detrimental effects.
Furthermore, both calcium and carbonate are essential constituents of living organisms, including invertebrates.
In an acute toxicity study to Daphnia magna with a saturated solution (100% v/v) of uncoated nano calcium carbonate no immobilisation or toxic effects were observed in any of the Daphnia magna exposed (Priestly, 2010). As a result, calcium carbonate is considered not acutely toxic to aquatic invertebrates and hence long term testing is considered to be unnecessary.
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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