Study on ambient air quality in the some cities of Mongolia

In this paper presents first results of the monitoring study on Ambient Air Quality in Ulaanbaatar and Erdenet Cities by nuclear techniques. The work performed including sampling of fine and coarse fractions of particulate matter at site representing an urban area, measurement of particle concentration and elemental concentration valuable data. Determined for each of PM10 and PM2.5 sites air particulate. Results show, that air dust concentration is more than national standard level in all seasons. By the study soil erosion and white dust is most pollutant source in Ulaanbaatar and Erdenet city.