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EC number: 601-732-9 | CAS number: 12069-91-9
The available reliable ecotoxicity results selected for the effect of vanadium on aquatic organisms are all based on pentavalent V substances (NaVO3, NH4VO3, Na3VO4, V2O5 and ammonium polyvanadate). All data were reported based on dissolved elemental V concentrations. The data available do not allow conclusions on the effect of water properties (pH, hardness, etc.) or V substance on toxicity of vanadium to aquatic organisms. Therefore, all reliable toxicity data for all V substances, expressed on a dissolved vanadium basis, were grouped.
There are insufficient data for calculation of a PNECwater with the statistical extrapolation approach (species sensitivity distribution, SSD). For the implementation of the SSD-methodology, the effects dataset should contain reliable chronic no-effect levels (NOEC/EC10-values) for at least 10 to 15 species, representing at least 8 different taxonomic groups. Reliable long-term toxicity data are only available for 6 freshwater organisms covering three trophic levels: aquatic invertebrates (Daphnia magna), fish (Jordanella floridae, Pimephales promelas, Poecilia reticulata and Clarias batrachus) and algae (Scenedesmus subspicatus).
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