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Dispersion of mine tailings is the main cause of heavy metal (HM) contamination in soils in Zimapan, Mexico; however, the extent of this problem has not been assessed. Therefore, the aims of this(More)
La region montanosa de Veracruz es un ecosistema complejo por su f isiografia y vegetacion natural en donde ocurren sistemas productivos agroforestales de cafe que son de alto valor economico para(More)