Registration Dossier
Registration Dossier
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EC number: 215-219-9 | CAS number: 1314-11-0
Endpoint summary
Administrative data
Description of key information
Reliable soil toxicity data have not been identified for strontium and strontium oxide. However, supporting acute and chronic toxicity data for soil macroorganisms (C. elegans, Eisenia fetida) , which cannot be considered reliable due to methodological shortcomings, indicate that strontium is not very toxic to soil organisms. According to Column 2 of Annex IX of REACH (section 9.4. Effects on terrestrial organisms), in the absence of toxicity data for soil organisms, the equilibrium partitioning method may be applied to assess the hazard to soil organisms. The choice of the appropriate tests depends on the outcome of the chemical safety assessment. Soil toxicity tests with strontium or strontium oxide are not considered to be required for the following reasons: (i) Low toxic potential of strontium to aquatic organisms based on data for three trophic levels (algae, invertebrates and fish) and the low potential to adsorb to soil indicate a low if any toxic potential of strontium in soil (ii) Low bioaccumulation in terrestrial organisms based on information available for plants accompanied by very low soil-plant concentration factors as well as minor aquatic bioaccumulation of strontium. (iii) Strontium does not have a high potential to partition into soil and will largely exist in an ionised form.
Additional information
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