Browse > Article

Characterization of Aerosols Collected at a Subway Station Platform Using Low-Z Particle Electron Probe X-ray Microanalysis  

Hwang HeeJin (Department of Chemistry, Inha University)
Oh MiJung (Department of Chemistry, Inha University)
Kang Sun-ei (Department of Chemistry, Inha University)
Kim HyeKyeong (Institute for Basic Science, Inha University)
Ro Chul-Un (Department of Chemistry, Inha University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.21, no.6, 2005 , pp. 639-647 More about this Journal
Abstract
A single particle analytical technique, named low-Z particle electron probe X-ray microanalysis (EPMA), was applied to characterize samples collected at a subway station and ambient samples in Seoul. According to their chemical composition, many distinctive particle types were identified. For samples collected at the subway station platform, the major chemical species are carbon-rich, organic, aluminosilicates (AlSi), AlSi/C, AlSi/$CaCO_{3},\;CaCO_{3},\;SiO_{2},\;and\;Fe_{2}O_{3}$. For outdoor samples, carbon-rich, organic, AlSi, $CaCO_{3},\;SiO_{2},\;NaNO_{3},\;(Na,Mg)NO_{3},\;Na(CO_{3},NO_{3},SO_{4}),\;and\;(NH_{4})_2SO_4$, are abundantly encountered. Samples collected at the subway station show very high contents of $Fe_{2}O_{3}$, both in coarse and fine fractions, which come from brake block, subway train wheel, electric contact materials, etc. It is demonstrated that the single-particle characterization using this low-Z particle EPMA technique provided detailed information on various types of chemical species in indoor and outdoor samples.
Keywords
Low-Z particle EPMA; Single particle analysis; Indoor aerosols; Subway station;
Citations & Related Records
연도 인용수 순위
  • Reference
1 최형욱, 황인조, 김신도, 김동술 (2004) 분진의 개수농도 및 질량농도에 입각한 서울시 지하철 역사내 오염원의 기여도 결정. 한국대기환경학회, 20(1), 17-31
2 Ro, C.-U., J. Osan, and R. Van Grieken(1999) Determination of Low-Z Elements in Individual Environmental Particles Using Windowless EPMA, Anal. Chem., 71, 1521-1528   DOI   ScienceOn
3 Schwartz, J., F. Laden, and A. Zanobetti (2002) The Concentration-Response Relation between PM2 5 and Daily Deaths, Environ. Health Perspect., 110, 1025-1029   DOI   PUBMED   ScienceOn
4 Sitztnann, B., M. Kendall, J. Watt, and I. Williams (1999) Characterization of airborne particles in London by computer-controlled scanning electron microscopy, Sci. Total Environ., 241, 63-73   DOI   ScienceOn
5 Osan, J., I. Szaloki, C.-U. Ro, and R. Van Grieken (2000) Light Element Analysis of Individual Microparticles Using Thin-Window EPMA, Mikrochim. Acta, 132,349-355   DOI   ScienceOn
6 Szaloki, I., J. Osan, C.-U. Ro, and R. Van Grieken (2000) Quantitative characterization of individual aerosol prticles by thin-window EPMA combined with iterative simulation, Spectrochimica Acta B, 55, 1017-1030   DOI   ScienceOn
7 Ro, C.-U., J. Osan, I. Szaloki, J. de Hoog, A. Worobiec, and R. Van Grieken (2003) A Monte Carlo Program for Quantitative Electron-Induced X-ray Analysis of Individual Particles, Anal. Chem., 75, 851-859   DOI   ScienceOn
8 May, K.R. (1975) An Ultimate Cascade Impactor for Aerosol Assessment, J. Aerosol Sci., 6, 1-7   DOI   ScienceOn
9 Ro, C.-U., H.K. Kim, and R. Van Grieken (2004) An expert system for chemical speciation of individual particles using low-2 particle electron probe X-ray microanalysis data, Anal. Chem., 76, 1322-1327   DOI   ScienceOn
10 Adams, H.S., M.J. Nieuwenhuijsen, R.N. Colvile, M.A.S. McMullen, and P. Khandelwal (2001) Fine particle (PM2.5) personal exposure levels in transport microenvironments, London, UK, Sci. Total Environ., 279, 29-44   DOI   ScienceOn
11 김혜경, 노철언 (2003) Low-Z Electron Probe X-ray Microanalysis 분석법을 이용한 해안인근 지역의 대기입자 분석, 한국대기환경학회지, 19(5), 503-513