Chuennadda Chulamanee. An investigation of dust emission using chemical composition analysis method. Master's Degree(Industrial Hygiene and Safety). Mahidol University. : Mahidol University, 2009-03-30.
An investigation of dust emission using chemical composition analysis method
Abstract:
This study is an investigation of dust emission sources, especially fine particulate matter, at Na-Phra-Lan, Chalermphrakiat district, Saraburi province, Thailand, by using the chemical composition analysis method. This is the technique to determine the major source contributors in atmosphere. The fraction of chemical species contained in an emission from each source type shows source profile and their concentrations which can be used to calculate the relative contribution from different sources to ambient particulate matter levels by using the chemical mass balancing technique called CMB model. The gravimetric and chemical composition of fine particulate matter, especially PM10 emitters, were analyzed to determine the PM10 source profiles while the samples of fine particulate matter of atmospheric aerosol of Khung-Khow-Khew, Na-Phra-Lan and Ban Nhong-Jan at Chalermphrakiat district, were collected and analyzed to determine the chemical composition, from June, 2005 to March, 2006. Samples were collected on Teflon and Quartz fiber filters then analyzed for elemental composition, water soluble ions and carbon species by using X-ray fluorescence, ion chromatography and organic elemental analysis, respectively. The results of this study showed the significant sources of contribution at Na-Phra-Lan, Chalermphrakiat district, dramatically expressed by white cement plants, quarry and crushing plants, Portland cement plants, biomass burning, diesel vehicles and motorcycles at 71.87, 13.62, 9.72, 1.84, 1.22 and 0.15 percent, respectively. Unknown sources was 1.58 percent. The dominant chemical composition found in Na-Phra-Lan, Chalermphrakiat district, Saraburi province, was Ca, S, Si, Fe, SO4 + and Ca2+ at 25.11, 13.68, 9.61, 5.82, 5.78 and 4.01 percent respectively. The cement groups found Ca, Si ,S and Fe as major chemical components at 58.03, 18.6, 13.50 and 3.61 percent, respectively. It can be concluded that cement groups were the major source contributors in the study area.