MULTI-ELEMENTAL CHARACTERIZATION OF URBAN ROADWAY DUST
MULTI-ELEMENTAL CHARACTERIZATION OF URBAN ROADWAY DUST
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DOI：
10.1021/es60162a006
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发表时间：
1980-01-01
影响因子：
11.4
通讯作者：
NATUSCH, DFS
中科院分区：
文献类型：
--
作者：
HOPKE, PK;LAMB, RE;NATUSCH, DFS
城市道路灰尘的样品被物理地分成30个子样品，每个子样品具有独特的颗粒大小、密度和铁磁特性。然后对每个子样本进行35种元素的分析。由此产生的数据集进行目标转换因子分析，以确定和量化的来源，有助于道路灰尘。分析表明，土壤、水泥、汽车尾气排放、铁锈、轮胎磨损和盐是颗粒物质的主要来源，后两种可能代表混合成分。实现了次要源贡献的半定量估计。考虑元素质量和浓度分布的图形表示，连同统计分析的结果，提供了相当深入的了解元素在城市灰尘的物理和化学特性。
A sample of urban roadway dust was physically fractionated into 30 subsamples, each having unique particle size, density and ferromagnetic characteristics. Each subsample was then analyzed for 35 elements. The resulting data set was subjected to target transformation factor analysis to identify and quantify the sources that contribute to roadway dust. The analysis indicated that soil, cement, automobile exhaust emissions, rust, tire wear and salt were the primary sources of particulate material, with the last 2 probably representing mixed components. Semiquantitative estimation of the minor source contributions was achieved. Consideration of graphical representations of elemental mass and concentration distributions, together with the results of the statistical analysis, provides considerable insight into the physical and chemical characteristics of elements in urban dust.