One of the major sources of soil pollution in Ulaanbaatar is the auto repair and maintenance centers of major auto sales and service centers such as Da Khuree, Diesel Khuree, Mungun khuleg and Buyan Khurah, Bayanzurkh districts. 30 samples were taken from 29 sites and 57% of total samples (n=30) were organic pollutants, 30% were polluted with ammonia and 10% had sulfate pollutants. The soil of the "Da Khuree" field has a high pollution of lead (Pb), cadmium (Cd), copper (Cu) and zinc (Zn) in the soil. The percentage of soil pollution exceeding the standard (MNS 5850) is Lead (Pb) 30%, Cadmium (Cd) 6.7%, Chromium (Cr) 6.7%, Copper (Cu) 33.3%, Zinc (Zn) 30.0% are polluted.
