STUDY OF SOME CHEMICAL COMPONENTS IN SOIL SAMPLES FROM VILLAGE SHAUMIANI IN MARNEULI MUNICIPALITY

Author: Liza Chukhua
Keywords: Soil pollution, Heavy metal, Inorganic components, Microwave plasma atomic emission spectrometry.
Annotation:

Soil is a unique natural resource that plays an important role in the development of our planet’s living organisms, including humans. Considering this, it is interesting to thoroughly study different soils. Our goal was to study 4 samples of soil from village Shaumiani to determine the concentrations of the following heavy metals – cadmium, lead, zinc, copper, nickel, manganese, chromium, aluminum and iron – using microwave plasma atomic emission spectroscopy. Using internationally standardized methods, the concentrations of other inorganic components (F-, Cl-, SO42-, Ca2+, Mg2+, Na+) were also determined in the soil samples. It was found that the pH of Shaumiani soil samples varied in range from 7.82-7.98 and thus, these soils are alkaline soils. The concentration of CaCO3 increases with depth, with a maximum of 124 mg/g at 30-60 cm depth. Additionally, concentrations of heavy metals Cd, Pb, Zn, Cu, Mn and other inorganic components Cl-, SO42-, Ca2+, Mg2+, Na+, are all within their respective norms. Iron, which is measured in Clarkes, is also agreeable with previous research findings. Cumulative concentration of chromium is 6.7-10.4 times higher than the normative value.