Use of speciation modelling of heavy metals in Los Patos lagoon, Argentina, to improve waterbody management

E.Y.SANCHEZ; M.L.ELORDI; S.REPRESA; L.CANO; J.E.COLMAN LERNER; S. ELISIO; D. ANDRINOLO; A.A.PORTA

Journal of Environment and Health

Inderscience Publishers

Lugar: Boston; Año: 2018 vol. 9 p. 3 - 15

1743-4955

Levels established in water quality guidelines for protection of aquatic life, is based on the total concentrations of heavy metals regardless speciation. However, there are numerous studies which show the importance of determining both the physicochemical characterization of waterbody, and the total concentration of heavy metal in them, including its chemical speciation, given its specific correlation with the bioavailability. In this regard, the objective of this study is to quantify concentrations of heavy metals in Los Patos lagoon, Argentine, and to show the utility of estimating with Visual Minteq software the fractions in which these metals are forming aqueous inorganic species or complexed with organic matter. The results demonstrate the relevance of using speciation calculations of metal cations, particularly when their concentrations are in the order of guide levels.