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국가제철산업단지 초미세먼지 원인별 정량적 기여량 평가 - PMF 모델 적용 (PART2)

Primary Source Apportionment of PM2.5 in the National Steel Industrial Complex - Implication of PMF Model (PART2)

Abstract 

In this study, PM2.5 samples were collected at two sampling sites near the Munmak industrial complex and a charcoal

kiln, and their ionic and carbonaceous constituents were measured. Average PM2.5 concentrations were 21.8±

13.1 μg/m3 and 39.7±24.0 μg/m3 at the sites near the industrial complex and the charcoal klin, respectively. At the

charcoal kiln site, organic carbon (OC) contributed 50.6% to PM2.5 mass and there was a significant correlation

between PM2.5 and OC, indicating that PM2.5 concentration was greatly influenced by OC. The influence of charchol

kiln on EC was much lower than on OC; therefore, a very high OC/EC ratio was observed. On the other hand, the

contribution of ionic constituents(including NO3 -, SO4 2-, and NH4 +) for PM2.5 was much higher at the sampling site

near the industrial complex than at the charcol kiln site. With the southwesterly winds blown from the industrial

complex, the concentrations of PM2.5 and ionic components significantly increased. Correlation of OC concentrations

between two sampling sites was not significant, but the correlation coefficients of ionic components between two

sampling sites were very high. These results suggest that OC was influenced by local sources (charcoal kiln or industrial

complex) but the ionic components were considered to be more influenced by medium- or long range transport than

by local emission source.

Key words 

PM2.5, Industrial complexes, Charcoal kiln, Ionic constituents, Carbonaceous constituents

▶출처 : 한국대기환경학회지 제 39권 제 2 호, 2023.04