GEOCHEMICAL SURVEYS ON THE TOXIC HEAVY METALS Pb, Zn, AND Cd IN AGRICULTURAL SOIL SAMPLES FROM BASHINO VILLAGE-RECHANI AT THE VELES CITY AREA, MACEDONIA

摘要

In the agricultural soil samples of the Bashino village-Rechani at the Veles city area were determined polluted surfaces especially by Pb, Zn and Cd of anthropogenic origin (due to the metallurgic activities of Pb-Zn furnace factory), as follows: soil samples with increased Pb contents of cca 100 to 2000 ppm actually represent common contents for the mentioned heavy toxic metal inside the treated region. So, the situation in the investigated area with respect to Pb content is really critical. In some (very rare cases) soil samples were determined even 3000 to 5000 ppm Pb; the Zn contents in the soil samples ranged from cca 600 to 2000 ppm and they are common especially for the agricultural surfaces (extending on the right side of the Vardar river as well as at Lokva, Rechani, Hladnjacha) of the investigated area. The other surfaces (of cca 40-50%) of the investigated area are treated as very weak or yet non-polluted microlocalities with Zn contents below 300 ppm Zn; the surface of the investigated region is nearly cca 90% polluted with Cd contents (ranged from cca 3-7 ppm while at some points were determined extremely high Cd contents of cca 30-70 ppm Cd).