지하철에서 탄산염을 고려한 이온성분의 구성비율 추정에 관한 연구

초록

The following study aims to estimate the configuration ratio of the ion compounds that identifies the cause offine dust and ways to reduce it. In this study, the physical and chemical properties of fine particles in a tunneland the configuration form of ionic composition were interpreted to establish reasonable measurement for airquality management. Seasonal measurements were performed by collecting samples from the Mia sageori subwaystation. Chemical Mass Balance (CMB) model was used to estimate the configuration ratio of ions in this study. The results showed that the test performed outside showed about 56.4% of total ion, with (NH4)2SO4, NH4NO3,CaCO3 and NaCl showing concentrations of 2.138 μg/m3, 1.957 μg/m3, 1.697 μg/m3 and 1.600 μg/m3, respectively,while the results indoor had CaCO3, NH4NO3, (NH4)2SO4 and NaCl showing concentrations of 2.272 μg/m3,2.204 μg/m3, 1.656 μg/m3 and 1.342 μg/m3, respectively, about 65.1% of total ion. During the usage of tunnel, itwas found that CaCO3, NH4NO3, (NH4)2SO4 and MgCO3 showed concentrations of 3.464 μg/m3, 1.732 μg/m3,1.698 μg/m3 and 0.582 μg/m3, respectively, total ion of 70.2% was presented.

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