(주)에이피엠엔지니어링

대기오염물질의 실시간 측정망 자료를 활용한 PM1.0과 PM2.5의 화학적 특성 비교 및 발생 특성 규명

Comparison of the Chemical Characteristics and Sources Apportionment of PM1.0 and PM2.5 Using Real-time Air

Quality Monitoring Network Data of Air Pollutants

Abstract 

In this study, the mass concentration and chemical properties of PM1.0 and PM2.5 were compared and analyzed in Seoul and

Baengnyeong during 2020~2022. The data reliability was evaluated by comparing real-time and filter-based mass

concentration and chemical composition of PM2.5. The correlation between the mass concentration of real-time and

filter-based PM2.5 was higher than 0.92 in both sites, and the seasonal trend of mass concentration was similar, which

means that the two measurement methods are evaluated to be reliable. The PM1.0/PM2.5 ratio of mass concentration

was high, accounting for about 80% in both Seoul and Baeungnyeong. The chemical composition and seasonal

characteristics of PM1.0 and PM2.5 were similar, confirming that the contribution of PM1.0 to PM2.5 was high. The high

concentration case studies and PMF model results show that the secondary pollutants were mainly distributed below

PM1.0 and highly affected the production of PM2.5. This study is expected to provide information on evaluating the

reliability of real-time measurement and filter-based data and on understanding the chemical composition and source

characteristics of PM1.0.

Key words 

PM1.0, PM2.5, Chemical composition, Source apportionment

▶출처 : 한국대기환경학회지 제 39권 제 4 호, 2023.08