The toxicity of antimony is a function of the water solubility and the oxidation state of the antimony species under consideration (Elinder & Friberg, 1986; Fowler & Goering, 1991). In general, antimony(III) is more toxic than antimony(V), and the inorganic compounds are more toxic than the organic compounds (Stemmer, 1976), with stibin (SbH3), a lipophilic gas, being most toxic (by inhalation).

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