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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

Analogue substance Lanthanum carbonate: 
LC50(48h) was given as greater than 100 mg/L (nominal loading rate).
Samarium oxide
LC50(48h) was given > 0.15 mg/L (limit of solubility)
NOEC(48h) was given >/= 0.15 mg/L (limit of solubility)
Altogether: No effects are expected up to the limit of water solubiity.

Key value for chemical safety assessment

Additional information

About Samarium oxide one study was available and anothether one about the analogue substance Lanthanum carbonate:

Study report on the analogue substance Lanthanum carbonate showed that no immobilized test organisms were observed during the test period of 48 h. Therefore, the LC50(48h) was given as greater than 100 mg/L (nominal loading rate).

Study report on Samarium oxide was also performed as a limit test at the nominal concentration 100 mg/L.

Twenty daphnia were exposed to the test item for 48 hours in a static test system. After 24 and 48 hours, the immobilised daphnia were counted.

The concentration showed no toxicity. Two of the animals were immobilised in the control.

LC50(48h) was given > 0.15 mg/L (limit of solubility)

NOEC(48h) was given >/= 0.15 mg/L (limit of solubility)

Altogether: No effects are expected up to the limit of water solubiity.