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- Title
PRELIMINARY STUDY OF RIVER WATER IN GOLD MINING AREAS OF CAMBODIA.
- Authors
Murao, Satoshi; Nishiyama, Fumitaka; Sieng, Sotham
- Abstract
In Cambodia, artisanal mining has recently come to a social concern because of Ut possibility to cause environmental degradation and human health problems. The General Department of Mineral Resources of Cambodia is collecting environmental specimens in mining sites to watch the situation. This time, four waxer samples from Sampov Loon and one from Memong mining site were sent from the Department to Hiroshima University Japan, and the samples were analyzed by means of PIXE at the University. A volume of 10 μl from each sample was separated and dropped onto 4μm polypropylene backing foil. The measurement was earned out by using 2.5 MV single-ended Van de Gruff accelerator. A Si(Li) detector (active area, 80mm2 sensitive depth, 5mm; Be-windows thickness, 25 μm; resolution, 167 eV fwhm at 5.9 keV) was used for both of in vacuo PTXE and non-vacuum external beam PIXE measurement A computer code PIXS was used for the quantification. The result indicates that there are at least two kinds of water in Sampov Loon and one of them possibly represents polluted condition.
- Subjects
CAMBODIA; GOLD mining; MINES &; mineral resources; GOLD; RIVERS
- Publication
International Journal of PIXE, 2004, Vol 14, Issue 3/4, p109
- ISSN
0129-0835
- Publication type
Article
- DOI
10.1142/S0129083504000161