Dirvožemio užterštumas sunkiaisiais metalais

Abstract

The biggest part of atmospheres pollution is throwing out from the mobile pollution spring (motortransport, railtransport, airtransport and others). In the soil is setting the accumulation of he my metals. The soil, execulating accumulation and transformation functions, is stipulating by heavy metals circuit in the nature. The surplus of heavy metals in the soil have a negative effect upon the microorganisms, the fauna of the soil and even the vegetation. The amount of heavy metals in the soil decides on the granulometrian structure of it: in the medium hecniness and heavy joam and clay (0 - 60 cm} chromium satisfactorily is 5,8, cadmium - 2,5, lead -2,1, nickel - 5,8, copper - 5,4, zinc - 3,5, manganese -2,9 times more then in sand. In the peaty soil cadmium, lead and nickel quantity- are analogical as in the heaviest granulometrian structure mineral soil, chromium, nickel, zinc and manganese there are less in tne sand. Sow then, glancing over the information, we can draw a conslution that in the different layer of the soil heavy metals in many case are distributed unregular.