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    STUDIA AMBIENTUM - Ediţia nr.1-2 din 2008  
         
  Articol:   SPATIAL DISTRIBUTION AND MOBILITY OF THE HEAVY METALS IN SOILS FROM BAIA MARE AREA.

Autori:  FLOAREA DAMIAN, GHEORGHE DAMIAN, GHEORGHE MACOVEI, GHEORGHE IEPURE, DANIEL NĂSUI, IOANA NĂPRĂDEAN, RĂZVAN CHIRA, LENUŢA KOLLAR. 		 
       
         
  Rezumat:  In Baia Mare area there have been studied the control factors of the spatial distribution and mobility within soil profile for Pb, Cu, Zn, Cd in various type of soils, eutricambosol, luvosol, aluviosol. Lead concentration is higher (1429 - 6563 ppm) in Romplumb areal compared to the Cuprom areal (909 - 995 ppm) and is associated with the rich in humus horizon, in pH acid condition, with high values of the cation exchange capacity. The mobility of the Pb within the soil profile is slow or inexistent. Copper presents the concentrations between 90 - 199 ppm in organo-mineral horizons in Cuprom areal. Cadmium in the A horizons of the soil profiles presents the highest concentrations in Romplumb areal (5.74 - 19.43 ppm) followed by the ones in Cuprom areal (1.20-9.44 ppm). For Cd is specific the mobility within the soil profiles with an increase of the content in the intermediate horizons up to 50 ppm in Romplumb areal and with the maintenance of the values that exceed the maximum allowable limit in the areal (Cuprom). The Zn pollution is excessive in Romplumb areal (377 - 3296 ppm) and moderate in Cuprom areal (536 - 252 ppm). Using the loading/pollution index, calculated for the 0 - 10 cm and 10 - 50 cm depth, the spatial distribution and mobility of the heavy metals maps have been made. This has been done by using GIS, ArcView technology.

Keywords: heavy metals, loading/pollution index, spatial distribution, GIS technology 		 
         
     
         
         
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