Source tracing of chromium-, manganese-, nickel- and zinc-containing particles (PM₁₀) by micro-PIXE spectrum

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• 作者：Weisheng Yue ; Xiaolin Li ; Jiangfeng Liu ; Yulan Li ; Guilin Zhang and Yan Li
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2007
• 出版时间：October, 2007
• 年：2007
• 卷：274
• 期：1
• 页码：1-7
• 全文大小：421 KB

文摘

Adverse health effects of occupational exposures to metal-containing airborne particles have long been recognized. To reduce the adverse effects caused by metal-containing particles, it is important to make clear where they are from. SPM has been applied to the study of the sources of chromium, manganese, nickel and zinc in aerosol particles PM₁₀. Micro-PIXE spectra of single particles were treated as fingerprints since each particle was characterized by its micro-PIXE spectrum. The sources of the metal-containing particles were identified using the fingerprints of single particles. The study shows that the major sources of the four kinds of metals in the air are metallurgic emission, vehicle exhaust, coal combustion and soil dust.