Characterization of iron in airborne particulate matter

被引：7
|
作者：
Tavares, F. V. F. [1 ]
Ardisson, J. D. [1 ]
Rodrigues, P. C. H. [1 ]
Brito, W. [1 ]
Macedo, W. A. A. [1 ]
Jacomino, V. M. F. [1 ]
机构：
[1] Nucl Technol Dev Ctr, Belo Horizonte, MG, Brazil
来源：
HYPERFINE INTERACTIONS | 2014年 / 224卷 / 1-3期
关键词：
Air pollution; Particulate matter; Soil; Iron ore; Fe-57-Mossbauer spectroscopy; MOSSBAUER-SPECTROSCOPY; SOILS; OXIDES;
D O I：
10.1007/s10751-013-0823-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
In this work soil samples, iron ore and airborne atmospheric particulate matter (PM) in the Metropolitan Region of Belo Horizonte (MRBH), State of Minas Gerais, Brazil, are investigated with the aim of identifying if the sources of the particulate matter are of natural origin, such as, resuspension of particles from soil, or due to anthropogenic origins from mining and processing of iron ore. Samples were characterized by powder X-ray diffraction, X-ray fluorescence and Fe-57-Mossbauer spectroscopy. The results showed that soil samples studied are rich in quartz and have low contents of iron mainly iron oxide with low crystallinity. The samples of iron ore and PM have high concentration of iron, predominantly well crystallized hematite. Fe-57-Mossbauer spectroscopy confirmed the presence of similar iron oxides in samples of PM and in the samples of iron ore, indicating the anthropogenic origin in the material present in atmosphere of the study area.
引用
收藏
页码：109 / 119
页数：11
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