earticle

영어

In this study, PM-2.5 samples were collected during approximately 1 year in Mokpo and Suncheon, small and mediumsized cities, in Korea. 29 species were measured and analyzed by Ion Chromatograph (IC), X-Ray Fluorescence (XRF), Organic Carbon/Elemental Carbon analyzer (OC/EC) after pretreatment. The average PM-2.5 concentrations were 18.4 μg/m3 (3.9 μg/m3 ~ 60.7 μg/m3) and 24.2 μg/m3 (6.3 μg/m3 ~ 63.0 μg/m3) in Mokpo and Suncheon, respectively. The ionic compositions were dominated SO4 2−(47%) > NO3 −(28%) > NH4 +(20%) > Cl−(5%) in Mokpo, and SO4 2−(56%) > NO3 − (21%) > NH4 +(21%) > Cl−(2%) in Suncheon. The PMF model was applied to estimate PM-2.5 sources and the quantitative contribution based on the chemical information(275 samples and 29 chemical species). The results of the PMF modeling showed that the sources were apportioned by biomass burning (27%), secondary sulfate (26%), oil combustion (16%), secondary nitrate (14%), mobile (9%), soil (7%), industry (2%) in Mokpo, and secondary sulfate (21%), biomass burning (19%), mobile (16%), oil combustion (15%), secondary nitrate (13%), industry (10%), soil (6%) in Suncheon.

한국어

중소도시인 목포시와 여수시에서 약 1년 동안 PM-2.5를 필터 채취하여 이온성분(Ion Chromatograph), 원소성분(XRay Fluorescence), 탄소성분(Carbon/Elemental Carbon analyzer) 등 총 29개 항목을 분석하였다. PM-2.5 평균 농도는 목 포 18.4 μg/m3(3.9 μg/m3 ~ 60.7 μg/m3), 순천 24.2 μg/m3(6.3 μg/m3 ~ 63.0 μg/m3)로 나타났다. 주요 이온성분은 목포에 서 SO4 2−(47%) > NO3 −(28%) > NH4 +(20%) > Cl−(5%), 순천에서 SO4 2−(56%) > NO3 −(21%) > NH4 +(21%) > Cl−(2%)순 이었다. 275개 시료에 대해 29개 분석항목을 PMF분석한 결과 두 도시에서 각각 7개의 배출원을 분류할 수 있었다. 목포 지역의 배출원별 기여율은 생체소각(27%), 2차 황산염(26%), 석유연소(16%), 2차 질산염(14%), 이동오염(9%), 토양 (7%), 산업부분(2%)으로, 순천지역의 배출원별 기여율은 2차 황산염(21%), 생체소각(19%), 이동오염(16%), 석유연소 (15%), 2차 질산염(13%), 산업부분(10%), 토양(6%)순으로 추정되었다.