Composição elementar do material particulado presente no aerossol atmosférico do município de Sete Lagoas, Minas Gerais
Composição elementar do material particulado presente no aerossol atmosférico do município de Sete Lagoas, Minas Gerais
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米纳斯吉拉斯州塞特拉戈斯
DOI：
10.1590/s0100-40422007000500035
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
M. Menezes
中科院分区：
文献类型：
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作者：
P. M. Queiroz;Vanusa M. F. Jacomino;M. Menezes
这项研究的主要目的是查明米纳斯吉拉斯州塞特拉戈亚斯大气气溶胶中产生颗粒物的来源。用X射线衍射仪测定矿物组成，用中子活化分析测定元素浓度。结果表明，铝、氯、铜、铁、钾、镁和钠是总悬浮颗粒物中的主要化学元素。空气动力学直径小于10µm(PM10)的颗粒物中Na、Ba、Cl、Cu、Eu、Fe和Sm的存在表明，土壤粉尘和陶瓷和生铁行业是该地区空气质量恶化的主要来源。
The main objective of this study was the identification of sources generating particulate matter in the atmospheric aerosols of Sete Lagoas, Minas Gerais. The measurement of the mineral composition was accomplished by X-ray diffractometry and the elemental concentration by neutron activation analysis. The results showed that Al, Cl, Cu, Fe, K, Mg and Na are the predominant chemical elements in the total suspended particles (TPS). The presence of Na, Ba, Cl, Cu, Eu, Fe and Sm in those particles with aerodynamic diameter smaller than 10 µm (PM10), indicates that soil dust and ceramic and pig iron industries are the main sources of air quality degradation in the region.