CHARACTERISTICS OF FINE AND COARSE PARTICLES OF NATURAL AND URBAN AEROSOLS OF BRAZIL
CHARACTERISTICS OF FINE AND COARSE PARTICLES OF NATURAL AND URBAN AEROSOLS OF BRAZIL
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DOI：
10.1016/0004-6981(86)90316-1
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发表时间：
1986-01-01
影响因子：
5
通讯作者：
KERR, AS
中科院分区：
文献类型：
--
作者：
ORSINI, CQ;TABACNIKS, MH;KERR, AS
从1982年到1985年，在一个天然森林海岸（Jureia）和五个城市工业城市（维托里亚、萨尔瓦多、波尔图、阿莱格雷、圣保罗和贝洛奥里藏特）对细颗粒和粗颗粒进行了采样。空气中的浓度和相对元素组成的细颗粒和粗颗粒部分，采样的Nuclepore堆叠过滤器单元（SFU）的时间变化，已确定重量分析和PIXE分析，分别。富集因子和相关系数的微量元素测量导致明确的表征土壤粉尘和海盐，两个主要的气溶胶源，排放粗颗粒，土壤粉尘也是一个重要的细颗粒源。
Fine and coarse particles have been sampled from 1982 to 1985 in one natural forest seacoast site (Jureia) and five urban-industrial cities (Vitoria, Salvador, Porto Alegre, Sao Paulo and Belo Horizonte). The time variations of concentrations in air and the relative elemental compositions of fine and coarse particle fractions, sampled by Nuclepore stacked filter units (SFU), have been determined gravimetrically and by PIXE analysis, respectively. Enrichment factors and correlation coefficients of the trace elements measured led to unambiguous characterization of soil dust and sea salt, both major aerosol sources that emit coarse particles, and soil dust is also a significant source of fine particles.