서울시 미세먼지의 밀도 추정에 관한 연구
A Study on the Particles Density Estimation in Seoul Metropolitan
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조회
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다운로드
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인용
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참고문헌
키워드
초록
The variation of the particle size distribution and density as well as the chemical composition of aerosols is important to evaluate the particles. This study measured and analyzed airborne particles using a scanning mobility particle sizer(SMPS) system and an aerodynamic particle sizer(APS) at University of Seoul during every season. Particle number concentration of airborne particles less than 0.9㎛, winter was the highest. Particle number concentration of airborne particles more than 0.9㎛, spring was the highest. Mass concentration appeared highest at spring. Also, when we compared β-ray's mass concentration with calculated mass concentration by using SMPS-APS system during each season, density of the winter is 1.92g/cm³, spring density is 1.64g/cm³, fall density is 1.57g/cm³. We found out that PM10 density was differ every season. However, calculated density is whole density for PM10, density of each diameter was differ, so this study output that density estimation equation by QCM cascade impactor to measured mass concentration of each diameter.
Abstract
The variation of the particle size distribution and density as well as the chemical composition of aerosols is important to evaluate the particles. This study measured and analyzed airborne particles using a scanning mobility particle sizer(SMPS) system and an aerodynamic particle sizer(APS) at University of Seoul during every season. Particle number concentration of airborne particles less than 0.9㎛, winter was the highest. Particle number concentration of airborne particles more than 0.9㎛, spring was the highest. Mass concentration appeared highest at spring. Also, when we compared β-ray's mass concentration with calculated mass concentration by using SMPS-APS system during each season, density of the winter is 1.92g/cm³, spring density is 1.64g/cm³, fall density is 1.57g/cm³. We found out that PM10 density was differ every season. However, calculated density is whole density for PM10, density of each diameter was differ, so this study output that density estimation equation by QCM cascade impactor to measured mass concentration of each diameter.
참고문헌 (17)
- Kim, S. C., "Study on characteristics by aerodynamic diameter of airborne suspended particulate matters", Korean Journal of Environmental Health Society, 26(2), pp.108~115 (2000)
- 김성연, "서울시 일부 지역의 대기 중 미세먼지에 관한 연구", 한국환경보건학회지, 31(4), pp.301~308 (2005), 한국환경보건학회
- Kim, H. K., "Seasonal variation in size distributions for ionic components in the atmospheric aerosol", Korean Journal of Environmental Health Society, 22(4), pp.55~61 (1996)
- Kim, S. D., "study on the particles density estimation using SMPS-APS, QCM in the atmosphere", Particle and Aerosol Research, 3(2), pp.67~73 (2007)
- Kim, P. S., "A study on the characteristics of urban aerosol concentration in the size range of 0.01~ 1.0mm, J", KOSAE, 2(2), pp.41~50 (1986)
- 백귀남, "2001년 겨울철 서울 대기 에어로졸의 입경별 수 농도 특성", 한국대기환경학회지, 19(2), pp.167~177 (2003), 한국대기환경학회
- Jung, C. H., "Characteristics of aerosol size distrubution from OPC measurement in Seoul, 2001", KOSEA, 19(5), pp.515~528 (2003)
- Constantious Sioutas, "Evaluation of the measurement performance of the scanning mobility particle sizer and aerodynamic particle sizer", Aerosol Science and Technology, 30, pp.84~92 (1999)
- Erwin Karg., "The density of ambient particles from combined DMA and APS data", Journal of Aerosol Science, 31(1), pp.759~760 (2000)
- Buzorius, G., "Spatial variation of aerosol number concentration in Helsinki City", Atmospheric Environment, 33, pp.553~565 (1999)
- Ahn, K. H, "Instrumentation for particle measurement and monodisperse particle generation", The Korea Society of Mechanical Engineers, 35(2), pp.379~389 (1995)
- Morawska, L., "Relation between particle mass and number for submicrometer airborne particles", Atmospheric Environment, 33, pp.1983~1990 (1999)
- Cheng, M. D., "Characterization of ultrafine and fine particles at a site near the Great Somky Mountains National Park", Atmospheric Environment, 36, pp.5795~5806 (2002)
- Keady, P. B., "Differential mobility particle sizer : a new instrument for high-resolution aerosol size distribution measurement below 1mm, DMPS instruction manual" (1992), TSI Inc
- Peter H. McMurry., "The relationship between mass and mobility for atmospheric particles : A new technique for measuring particle Density", Aerosol Science and Technology, 36, pp.227~228 (2002)
- Philip Demokritou., "A compact multistage (Cascade) impactor for the characterization of atmospheric aerosols", Aerosol Science, 35, pp.281~299 (2004)
- Si Shen., "Evaluation of the SMPS-APS system as a continuous monitor for measuring PM2.5, PM10 and coarse(PM2.5-10)", Atmospheric Environment, 36, pp.3939~3950 (2002)