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Amgalan Natsagdorj,Bulgankhangai Tugsbayan,JiYi Lee,Soyol-Erdene Tseren-Ochir 한국대기환경학회 2021 한국대기환경학회 학술대회논문집 Vol.2021 No.10
In this study, we used inductively coupled plasma mass spectrometry (ICP-OES) to evaluate the PM2.5 bound elemental composition. The average concentration of PM2.5 was highest in winter (92.56 μgm<SUP>-3</SUP>) and in summer (13.64 μgm<SUP>-3</SUP>), with a greater abundance of sulfate in winter (155.63 μgm<SUP>-3</SUP>) and (6.84 μgm<SUP>-3</SUP>) in summer. In the PM2.5 samples, high concentrations of ambient elements were observed for Ca, Al, K, Zn, and Pb. The concentrations of toxic heavy metals such as Pb was 1.4 higher than the Mongolian National Standard (MNS 4585:2016, which is 1 μg/m³). In conclusion, the seasonal variation of the elements’ concentrations mostly depended on consumption, such as coal and wood consumption (W/S > 1). Crustal matter elements depended on dusting and vacuuming activities (W/S < 1). For detecting potential emission mitigation measures and for impact assessment of implemented air pollution reduction measures further components should be measured that are typical for specific emission sources. Especially the pollution load in some Ger-districts, which are not yet equipped with automatic monitoring stations, should be further investigated.