Industrial pig farms as sources of environmental pollution with heavy metals

The paper presents the results of studies of the content of heavy metals in soils, the source of which is pig manure runoff - waste from industrial pig farms. Prolonged introduction of manure effluents into the soil containing a significant amount of zinc and copper, as well as low-concentration organic compounds, can lead to degradation of agrozems. The source of heavy metals (Cu and Zn) entering the manure drains are mineral additives for animals. The accumulation effect of copper is most pronounced in both mobile and gross forms. To prevent the degradation of soils in the areas where pig farms are located, it is necessary to develop a system for rationing the introduction of manure effluents into agrozems, taking into account the content of heavy metals in them.