Registration Dossier
Registration Dossier
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EC number: 701-229-5 | CAS number: -
Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
Description of key information
For assessing the aquatic hazard of CdSSe, reference has been made to ecotoxicity data obtained by standard testing on CdTe, a sparingly soluble Cd-compound. Transformation dissolution data demonstrate that the solubility of Cd in CdSSe is even much lower than the solubility of Cd from CdTe (>100 times lower solubility of Cd in CdSSe, as compared to solubility in CdTe). The ecotoxicity of CdTe was therefore used as a worst case for the ecotoxicity of CdSSe.
An ecotoxicity study was performed using Eisenia fetida as test species. No acute effects were seen up to a concentration of 2.1 g CdTe/kg DW or 1 g Cd/kg DW.
As Cd2+ ion determines ecotoxicity, the PNEC deriviation will be based on the Cd 2+ ion as determined in the RA (2008).
Key value for chemical safety assessment
- Long-term EC10, LC10 or NOEC for soil macroorganisms:
- 2 100 mg/kg soil dw
Additional information
Solid CdTe is not acute toxic to earthworm when mixed into soil substrate up to concentrations of 2.1 g/kg Cd Te or 1 g Cd/kg DW. As Cd2+ ion determines ecotoxicity, the PNEC deriviation for terrestrial compartment will be based on the Cd 2+ ion as determined in the RA (2008).
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