Khan-Uul districts of Ulaanbaatar 1.2 leather processing industry is concentrated in the territory of the Committee and "Kharigia" located in the industrial water treatment plants. According to a percentage of the total area of heavy metal contamination in soil samples: chromium (Cr), 44%, or 4 points 1.2-27 times, cadmium (Cd) 11% 1 point or 1.2 times the standard (MNS 5850) than exceeded. The chromium content of the soil is the standard for long-term human skin guujikh, itching, hair loss, such as public health consequences.