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EC number: 235-122-5
CAS number: 12070-10-9
Several reliable studies (Klimisch 1 or 2) are available on the acute
toxicity of different vanadium substances (NaVO3, V2O5, (NH4)V3O8) to Daphnia
magna. Reliable 48-h L(E)C50 values for mortality and immobilisation
range from 1520 to 4033 µg V/L. A reliable study (Klimisch 2)
is available for the acute toxicity of Na3VO4 to the naidid oligochaete
Pristina leidyi (Smith et al., 1991; 48-h LC50: 30,830 µg V/L; Klimisch
1). The lowest 48-h L(E)C50 for freshwater invertebrates (1520 µg
V/L) was observed for the effect of V2O5 on the mortality of Daphnia
magna in hard water (Kimball, 1978; Klimisch 2) and was selected for the
chemical safety assessment.
Regarding the short-term toxicity of vanadium to marine invertebrates,
Woods et al. (1984) report a 48-h LC50 of 13,300 µg V/L for the acute
effect of NaVO3 on the mysid shrimp Americamysis bahia in
adjusted natural seawater (Klimisch 1).
All results are based on total dissolved V concentrations.
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