Dr. Lodoysamba SereeterMSc. Guyen BattuvshinAnu-Ujin Sarantuya2025-10-012018-08-10https://gmitlibrary.net/handle/123456789/9This thesis assesses the air pollution data from twelve monitoring stations in Ulaanbaatar (UB). The measurements cover major six pollutants including Particulate Matters (PM10- all particles <10 µm and PM2.5- all particles <2.5 µm), Sulfur dioxide (SO2), Nitrogen dioxide (NO2), Carbon monoxide (CO) and Ozone (O3). The data obtained from open-source database named OpenAQ. Briefly, there are overall 15 monitoring stations in Ulaanbaatar, but 12 of them are connected to the OpenAQ source and each station’s data collected by 30-minutes range.enThesis