Determinación de la concentración de cadmio en tres tipos de suelos y en almendras de cacao (Theobroma cacao l.) de la variedad super árbol de la provincia de Orellana.

Abstract

The purpose of this graduation work was to determine the cadmium (Cd) concentration in three types of soils and cocoa almonds (Theobroma cacao L.), belonging to super árbol variety from Orellana Province; Three composite soil and three cocoa almond samples with integument were collected in Pimampiro, Los Ángeles and Amarun Mesa communities. The pH, EC analysis, typology and texture were carried out in the soil composite samples as well as the amount of ash and moisture present in cocoa almond composed samples. In addition, the concentration of Cd in the three composed soil samples and in the three cocoa almond composed samples was determined by means of atomic absorption spectroscopy. Most of the composite samples presented acidic pH and based on the determination of cadmium concentration, it was possible to establish that only the AC3 composite sample with 0.31 (mg / kg) fulfilled the standards established in the (0.5 mg / kg) quality regulation norm. The determination of cadmium concentration in three different areas of Orellana province revealed that this is a very extensive study which requires more time to be deepen, therefore it is recommended to continue with this study for its further application in environmental and territory management processes.