Characterization of the winter atmospheric aerosols in Kyoto and Seoul using PIXE, EAS and IC

Citation
Cj. Ma et al., Characterization of the winter atmospheric aerosols in Kyoto and Seoul using PIXE, EAS and IC, ATMOS ENVIR, 35(4), 2001, pp. 747-752
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environment/Ecology,"Earth Sciences
Journal title
ATMOSPHERIC ENVIRONMENT
ISSN journal
1352-2310 → ACNP
Volume
35
Issue
4
Year of publication
2001
Pages
747 - 752
Database
ISI
SICI code
1352-2310(2001)35:4<747:COTWAA>2.0.ZU;2-U
Abstract
Characteristics of atmospheric aerosols in Kyoto, Japan and Seoul, Korea we re investigated using particle-induced X-ray emission (PIXE), elemental ana lysis system (EAS) and ion chromatograph (IC). Atmospheric aerosols were co llected into fine and coarse fractions using a two-stage filter pack sample r in Kyoto and Seoul in winter of 1998. PIXE was applied to analyze the mid dle and heavy elements with atomic number greater than 14(Si), and EAS was applied to analyze the light elements such as H, C and N. The total mass co ncentration in Seoul was about two times higher than in Kyoto and the conce ntration of Ca, Si, and Ti that are mainly originated from soil were remark ably higher in Seoul, During an Asian dust storm event, the concentration o f soil components increased dramatically and amounted to about 15 times hig her than average concentration. The fine/coarse ratios of NH4+, NO3-, and S O42- were extremely high in both sites. The fact that nearly 70% of fine pa rticles in both Kyoto and Seoul consist of the light elements (N, C, and H) suggests the importance of light elements measurement. Good mass closure f or fine particles with light element data was achieved. (C) 2001 Elsevier S cience Ltd. All rights reserved.