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논문 기본 정보

자료유형
학술저널
저자정보
Jong-Myoung Lim (Korea Atomic Energy Research Institute) Chae-Yeon Lee (Korea Atomic Energy Research Institute) Yong-Jin Lee (Korea Atomic Energy Research Institute) Huncheol Kim (Korea Atomic Energy Research Institute) Jin-Hong Lee (Chungnam National University)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제28권 제3호
발행연도
2023.6
수록면
234 - 250 (17page)

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초록· 키워드

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Despite the severity of health impacts caused by particulate matter with an aerodynamic diameter ≤ 1.0 μm (PM<SUB>1.0</SUB>), corresponding data have been poorly documented compared to that of particulate matter with an aerodynamic diameter ≤ 2.5 μm (PM<SUB>2.5</SUB>) or ≤ 10 μm (PM<SUB>10</SUB>). In this study, the characteristics of PM<SUB>1.0</SUB> and its chemical species (black carbon [BC], SO₄<SUP>2-</SUP>, NO₃<SUP>-</SUP>, NH₄<SUP>+</SUP>, and 16 metals) were investigated in the roadside area of Daejeon. The mean PM<SUB>1.0</SUB> concentration was 19.9 ± 5.50 μg m<SUP>-3</SUP> (range of 6.86-34.7 μg m<SUP>-3</SUP>) near a road with high traffic density during a 3-month period in the fall/winter of 2019. The mean concentrations (± SD and range) of BC, NO₃<SUP>-</SUP>, and SO₄<SUP>2-</SUP> in PM<SUB>1.0</SUB> were 4.89 ± 4.21 (1.26-8.23), 4.21 ± 1.39 (1.76-9.78), and 4.30 ± 1.10 (1.16-7.03) μg m<SUP>-3</SUP>, respectively. Strong relationships between PM<SUB>1.0</SUB> and major species such as BC, SO₄<SUP>2-</SUP>, NO₃<SUP>-</SUP>, and NH₄<SUP>+</SUP> were observed with correlation coefficients of 0.52-0.96. After evaluating the factors affecting PM<SUB>1.0</SUB> concentrations using a positive matrix factorization model, six source types were revealed: secondary aerosol (54.1%), vehicle exhaust (21.2%), re-suspended soil-road dust (9.6%), fossil fuel combustion (9.1%), biomass burning (3.3%), and industrial activities (2.6%).

목차

ABSTRACT
1. Introduction
2. Experimental
3. Results and Discussion
5. Conclusions
References

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