| Summary: | 碩士 === 國立東華大學 === 自然資源與環境學系 === 100 === The Polycyclic Aromatic Hydrocarbons (PAHs) emissions resulted from industrial and human activities have become the organic pollutants that receive the attentions from every country in this planet. Because of its cumulative and insoluble properties, it can easily be adhered in the atmospheric-suspended particulates and transferred to other places along with the atmospheric motion, which resulted in second-time public nuisance. Using the 16 PAHs data released by US Environmental Protection Agency (US EPA) as the target pollutants for the sample areas and via gas chromatograph mass spectrometry (GC-MS) analysis, this study analyzes and categorizes low molecular weight (2, 3 rings) of PAHs and high molecular (4, 5, 6 rings) of PAHs via the actual cases of long-term Transportation mechanism in Taiwan. Sampling areas range around the high altitudes mountains regions within the scope of Taiwan central mountain range North rim and South rim, We collected soil and sediment for PAHs analysis and in Taiwan during the southwest monsoon and north east monsoon, collecting Taiwan from 2000 to 2010 wind speed data to analyze and try to find out the long-term Transportation situation and the possible sources of the major prevailing winds within the regions. Using chemical fingerprint and characteristic -ratio analyzing method, we find that the Mid-scale long-term transportation polluted situation the results PAHs were related to the emission to the regions of Taiwan central mountain range North rim and South rim. Sampling areas range around Chi-lai Mountain, Panshi Mountain, Hehuanshan Mountain, Nanhu Mountain in north rim, Chiaming Lake Mountain in south rim. The low molecular weight of PAHs may related forest fire emissions or mobile sources of pollution. The high molecular weight of PAHs may related west Taiwan, large industrial area in all regions, such as: the Hsinchu Science Park, Taichung Power Plant, Kaohsiung industry zone, Hualien Heping Power Plant in Eastern, dust storm etc. In north rim may sources for Taiwan northern and the central area and south rim for Central and the southern area, large industrial zones in the regions and metropolitan areas in west Taiwan. Results North rim learned combustion activities that may be to the metropolis in north to central area and the Hsinchu Science Park and Taichung Power Plant, North side of North rim may result in combustion activities with industrial or Metropolitan affect；South rim have combustion activities may be in central to the southern metropolitan areas and Kaohsiung industry zone and Taichung power plant, but under the influence of the current wind degrees lower than in the North rim. In the future should be should address domestic forest fires in the past the times, frequency, scope for in-depth study. The high molecular weight of PAHs sources related Industrial area and Metro area emissions. For related industrial area and the metro areas of high molecular PAHs for database establishment, combined with atmospheric Long-term transportation, further discussion sources of type. For both prevailing wind field analysis of the location of high-altitude mountains in Taiwan. Analyzing again applying other characteristic-ratio methods in Taiwan high altitude mountain, estimating regional pollution sources, the so-called high Altitude mountain area or areas of scarce people activities. We propose our pollution warning resulting from the Long-term Transportation cause of secondary pollution.
|
|---|
