Abstract
Concentrations of elements in fine and coarse PM10 samples collected in Ho Chi Minh City were determined by INAA for the purpose of characterising air pollution sources using multivariate receptor modeling techniques. Seven sources common to coarse and fine samples were identified. Resuspended soil dust is dominant in the coarse samples accounting for 41% of the particulate mass. In the fine samples, vehicle emissions and coal burning are most important accounting for about 20% each. Although a great number of elements were included in the input data for receptor modeling, the interpretation of emission sources was not always straightforward. Information on other source markers were needed. Therefore, a polarography method was used for quantifying lead, and recently, ion chromatography method became available for quantifying secondary sulphates, nitrates and other water soluble ions.
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Binh, N.T., Truong, Y., Ngo, N.T. et al. INAA in Combination with Other Analytical Techniques in the Study of Urban Aerosol Sources. Journal of Radioanalytical and Nuclear Chemistry 244, 103–107 (2000). https://doi.org/10.1023/A:1006735309235
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DOI: https://doi.org/10.1023/A:1006735309235