STUDY REGARDING POLLUTED SOILS WITH HEAVY METALS FROM MARAMURES MINING BASIN, ROMANIA, IN VIEW FOR THE REMEDIATION OF AFFECTED AREAS

Heavy metal contamination of soils is associated to mining activities and has impact on plants. micro-organisms and life support functions such as immobilisation. mineralisation, nitrification. The increasingly frequent contamination of soils with heavy metals represents a serious problem for Maramures county in Romania. The phytoremediation method can recover the infertile soil that has been polluted with excessive concentrations of heavy metals, it is a friendly environment method of remediation, can be applied on large areas, it is an in situ method and conserves topsoil. The objective of this paper consists in creating an objective and concrete image, also detailed and actual about the pollution of soils with heavy metals from different areas of Maramures county, in Romania with the purpose of highlighting the necessity of remediation and protection of the environment due to the magnitude of soil pollution. The paper has a fundamental approach based on data from specific literature and technical documentations.