Registration Dossier
Registration Dossier
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EC number: 231-174-8 | CAS number: 7440-65-5
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 data: aquatic toxicity unlikely
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 hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
Conclusion on classification
Yttrium metal is not classified for the environment, based on the fact that the 50% effect concentrations obtained in (acute) toxicity tests with aquatic organisms were all > 100 mg/L or > 100% v/v of a saturated solution with nominal loading rate 100 mg/L. This means that yttrium metal has no toxicity at its solubility limit into water.
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