1. Brookins, D.G. (1998) Eh-pH diagrams for geochemistry.Springer-Verlag, New York.
2. Clesceri, L.S., Greenberg, A.E. and Eaton, A.D. (1998) Standard methods for the examination ofwater and wastewater, 20th edn. American Public Health Association, Washington, USA.
3. CONAMA (Environmental National Council of Brazil) (2008) Standards for domestic water supply, resolution number 397; CONAMA: Brasília, DF.