PHYTOREMEDIATION OF CONTAMINATED SOILS IN THE VACINITY OF PROBISHTIP, THE REPUBLIC OF NORTH MACEDONIA

Abstract

Phytoremediation is one of the most suitable techniques for the remediation of heavy metals from polluted soils. The purpose of this paper is to determine the efficiency of several plants varieties for phytoremediation of soils contaminated with lead, iron and arsenic in the vicinity of the municipality of Probishtip.

            The research was done in the period from May to September 2023. During this period, representative soil samples were taken from several locations in the vicinity of Probishtip. These samples were subjected to laboratory testing to determine the concentration of the elements that compose it. After receiving the results, certain types of plants are planted in the soil samples. Тhe same soil samples are subjected to laboratory testing again after a certain period of time, sufficient for the plants to have an impact on the soil.

            The results of the soil analysis and risk assessment indicate the presence of heavy metal contamination in the soils surrounding Probishtip, especially in samples near Cranfield and the old tailings dump. The most frequently found metals include iron, lead, zinc, arsenic, copper, and chromium, all of which are the focus of our research. It can be inferred that the heavy metal content before planting the crops is higher than after planting, suggesting a process of soil remediation is underway.