The Contamination with Heavy Metals and the Toxicity Level of Arable Lands in the Industrial Region of Georgia Bolnisi­Kazreti

Abstract

Our aim is to determine the contamination with heavy metals and the toxicity level, solubility, valen ceand  acidity  of  Bolnisi­Kazreti  arable  lands,  their  forms  and  prevalence.  The arable lands of Georgia’s Kvemo Kartli industrial region Bolnisi­Kazreti  (Madneuli  Copper­Gold  Mine), which are generally irrigated by the River Mashavera, have been studied.  The waste water of the above­mentioned mine is discharged into thelands. The soil non­irrigation (spring) and heavy irrigation (summer) periods have been studied and compared. The spectral and atomic absorption analysis methods have been used in the study. The currently established ecological monitoring system will, hopefully, further improve the existing situation. The content of heavy metals in the grass does not exceed the MCL, indicating that they are generally present in the soil in the insoluble form. An increased amount of calcium in soil leads to the accumulation of metals there in, resulting gradually in the contamination and infertility of soil