SEM-EDX analysis of various sizes aerosols in Delhi India

被引：67

作者：

Srivastava, Arun ^{[1
]}

Jain, V. K. ^{[1
]}

Srivastava, Anchal ^{[2
]}

机构：

[1] Jawaharlal Nehru Univ, Sch Environm Sci, New Delhi 110067, India

[2] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

来源：

ENVIRONMENTAL MONITORING AND ASSESSMENT | 2009年 / 150卷 / 1-4期

关键词：

Scanning electron microscope; Energy dispersive X-ray; Size fraction; Aerosols; Metals; Delhi; PARTICULATE AIR-POLLUTION; SAN-LUIS-POTOSI; ELECTRON-MICROSCOPE; DAILY MORTALITY; TRACE-METALS; AMBIENT AIR; PARTICLES; MATTER; PM10; MINERALOGY;

D O I：

10.1007/s10661-008-0239-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Scanning electron microscopy-energy dispersive X-ray analysis (SEM-EDX) was used to understand the differences in morphology, elemental composition and particle density of aerosols in different five size ranges to further investigate the potential sources as well as transport of pollutants from/at a much polluted and a very clean area of Delhi. Aerosol samples were obtained in five different size ranges viz. >==10.9, 10.9-5.4, 5.4-1.6, 1.6-0.7 and <==0.7 mu m from a considerably very clean and a much polluted area of Delhi. It was observed that at polluted area most of the particles irrespective of size are of anthropogenic origin. At clean area, in coarse size fractions particles are of natural origin while in fine size range the presence of anthropogenic particles suggests the transport of particles from one area to the other.

引用

页码：405 / 416

页数：12

共 43 条

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