Characterization of the winter atmospheric aerosols in Kyoto and Seoul using PIXE, EAS and IC
Characterization of the winter atmospheric aerosols in Kyoto and Seoul using PIXE, EAS and IC
复制标题
使用 PIXE、EAS 和 IC 表征京都和首尔的冬季大气气溶胶
DOI：
10.1016/s1352-2310(00)00396-4
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发表时间：
2001
影响因子：
5
通讯作者：
K. Hwang
中科院分区：
文献类型：
--
作者：
Chang;M. Kasahara;S. Tohno;K. Hwang
利用粒子激发X射线荧光分析（PIXE）、元素分析系统（EAS）和离子色谱仪（IC）对日本京都和韩国首尔的大气气溶胶特征进行了研究。1998年冬季在京都和首尔用两级过滤采样器收集大气气溶胶的细颗粒和粗颗粒。PIXE用于分析原子序数大于14的中、重元素Si，EAS用于分析轻元素H、C、N。首尔的总质量浓度约为京都的2倍，首尔主要来源于土壤的Ca、Si和Ti的浓度显著高于京都。在一次亚洲沙尘暴期间，土壤成分的浓度急剧增加，达到平均浓度的15倍左右。NH 4+、NO3−和SO 42 −的细/粗比在两个地点都非常高。在京都和首尔，近70%的细颗粒物由轻元素（N、C和H）组成，这一事实表明了轻元素测量的重要性。实现了细颗粒与轻元素数据的良好质量闭合。
Characteristics of atmospheric aerosols in Kyoto, Japan and Seoul, Korea were investigated using particle-induced X-ray emission (PIXE), elemental analysis system (EAS) and ion chromatograph (IC). Atmospheric aerosols were collected into fine and coarse fractions using a two-stage filter pack sampler in Kyoto and Seoul in winter of 1998. PIXE was applied to analyze the middle 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 concentration in Seoul was about two times higher than in Kyoto and the concentration of Ca, Si, and Ti that are mainly originated from soil were remarkably higher in Seoul. During an Asian dust storm event, the concentration of soil components increased dramatically and amounted to about 15 times higher than average concentration. The fine/coarse ratios of NH4+, NO3−, and SO42−were extremely high in both sites. The fact that nearly 70% of fine particles in both Kyoto and Seoul consist of the light elements (N, C, and H) suggests the importance of light elements measurement. Good mass closure for fine particles with light element data was achieved.