Distribution, speciation and availability of antimony (Sb) in soils and terrestrial plants from an active Sb mining area

► Antimony (Sb) in soils from an active Sb mining area is highly bioavailable. ► Sb occurs mainly as Sb(V) in Sb mining impacted soils and plants. ► Sb solubility in Sb mining impacted soils is governed by Ca[Sb(OH)6]2. ► Citric acid extractable Sb in plants and bioavailable Sb in soils are strongly correlated.