Resumen

PEREZ LOPEZ, Yusimí et al. Content of metallic elements in soils typical of the San Jose de las Lajas municipality . Rev Cie Téc Agr [online]. 2012, vol.21, n.1, pp.43-46. ISSN 2071-0054.

At the moment, in all the regions of the world it has been informed about the human necessity of having an acceptable environment in all the orders, being in fact that of their contamination one of the most sensitive from the social point of view. The susceptible natural means and that in fact they are being contaminated they are: the water, the soil and the air. Associated to processes of contamination they are metallic elements (heavy metals (MP) that are present insoils either as natural components or results of the human activity. In numerous countries it has been possible to evaluate the extension of the contamination comparing the total tenors of MP in an area given with the opposing ones under natural conditions or through value guides (VO); however in our country they have not been possible to settle down under natural conditions and it has been had to use for their study the methodologies of countries like Brazil. Keeping in mind this antecedent in the work two types of soils was selected with low activity antrópica; the tenors of Cd were determined, Cr, Cu, Fe, Mn, Ni, Zn and the physical-chemical properties were analyzed to obtain the best statistical relationships that could be employees in the estimate of values of concentration of MP under natural conditions. The methodology for the extraction with regal water of the metals in the soils was proposed by ISO 11466. The obtained results allow establishing a novel methodology to propose for the first time you value guides of heavy metals in soils with little agricultural activity.

Palabras clave : contamination; heavy metals; value guide.

        · resumen en Español     · texto en Español     · Español ( pdf )