Registration Dossier
Registration Dossier
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EC number: 945-888-9 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no exposure of soil expected
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
According to the results of the Transformation/Dissolution protocol (pH 8; ca. 22 °C; 7d; 100 mg/L loading), Zr and Hf are not released from the test item as measured concentrations were below the detection limit (see section 4.8 of the present dossier). Yb could be analytically verified at 0.069 µg/L and is hence the relevant component for the assessment of potential ecotoxicological effects. As Yb is only released in the low µg/L range and available ecotoxicological studies with "zirconium oxide, ytterbium and hafnium doped" in Daphnia (Knauer 2016, section 6.1.3) and algae (Knauer 2016, section 6.1.5) did not reveal any adverse effects at nominal concentrations of 100 mg/L, toxic effects on other organisms are as well not expected and are considered highly unlikely.
Long-term tests on aquatic organisms are not necessary since no hazard was identified in the CSA and no hazard for long-term exposure is expected for aquatic organisms. This entails no classification regarding aquatic environment.
Secondary poising of predators is not expected from Yb.
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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