Unit:
Department of Geology and GeoenvirommentLibrary of the School of Science
Supervisors info:
Ευστράτιος Κελεπερτζής, Αναπληρωτής Καθηγητής, Τμήμα Γεωλογίας και Γεωπεριβάλλοντος, ΕΚΠΑ,
Ζαχαρένια Κυπριτίδου, (Ε.ΔΙ.Π.), Τμήμα Γεωλογίας και Γεωπεριβάλλοντος, ΕΚΠΑ
Original Title:
Γεωχημική ανάλυση μετάλλων (Pb, Zn, Ni, Cr, Cu, Mn, Fe) σε επιφανειακά εδάφη από την λεκάνη του Ασωπού ποταμού
Translated title:
Geochemical analysis of metals (Pb, Zn, Ni, Cr, Cu, Mn, Fe) in surface soils from the Asopos river basin
Summary:
This thesis aims to conduct a geochemical analysis of the surface of the
Asopos river basin, with a focus on potentially toxic elements. The area has
been affected by high pollution levels, and the main objective is to identify the
elements (Pb, Zn, Ni, Cr, Cu, Mn, Fe) and determine their origin as either
geogenic or anthropogenic, if possible. In addition, a thorough analysis was
carried out by comparing the concentrations in the soil not only with the
Dutch and Canadian soil quality guidelines, but also with previous studies.
Thirteen surface soil samples were collected from mainly agricultural land
along the Asopos river basin, within a short distance (km) of the Tanagra
industrial area and were subsequently processed in the laboratory. The
laboratory process involved several steps, including sample preparation,
mineralogical and geochemical analysis. Mineral identification was carried
out using the X-ray diffraction (XRD) method, while elemental concentrations
were determined through dissolution with HNO3 and Η2Ο2 to properly treat
the samples during Atomic Absorption Spectrometry (AAS) measurements.
The analysis results suggest that the concentration of elements is primarily
related to geogenic sources, with the exception of Pb, which is believed to
originate from anthropogenic sources. Compared to the Dutch and Canadian
soil quality guidelines, it is noteworthy that the concentrations of Cr and Ni in
the soil exceed the recommended values. This can be attributed to the
geological background (ultramafic rocks). In comparison to previous surveys,
it appears that the quality and concentrations of the soil elements have
remained consistent. This indicates that there may not have been significant
contamination during the period considered.
Main subject category:
Science
Keywords:
soil, industrial area, Asopos
