| Summary: | 碩士 === 國立臺北科技大學 === 環境工程與管理研究所 === 107 === Taiwan has a serious impact on air pollution in recent years, both in terms of ecological environment and the health of the population, especially the fine suspended particulates, PM2.5, and is the culprit of the deterioration of the air. Therefore, this study is intended to analyze the monitoring data of Taiwan PM2.5 and its air quality change trend, and to make a complete discussion and analysis of the distribution characteristics. And the results of the study from 2014 to 2018 were found that: (1) The annual average concentration, the average seasonal concentration and the monthly mean concentration of PM2.5 showed a decreasing trend of year. (2) The average concentration of PM2.5 was higher in spring and winter season. (3) The PM2.5 concentration of general station, industrial station and traffic station was higher than Park station. (4) The PM2.5 concentrations in Central, Yunjianan, and Gaoping area, were higher than northern, Taoyuan, Hsinchu and Miaoli Areas, while the Yilan and Hualien areas were the lowest. (5) The difference of PM2.5 monitoring concentration between mountainous and western coasts areas was small, while the concentration of PM2.5 in urban areas was much higher than that in rural areas. AQI is similar to the change trend of the PM2.5. The PM2.5 showed significant seasonal differences according to PM2.5 monitoring data.
During the northeast monsoon, it is mainly susceptible to long-range pollution transmission and poor diffusion of the leeward surface, PM2.5 is often exceeding the air quality standard. So the control measures in autumn and winter season need to be continuously strengthened and implemented. In addition to the impact of external transmission, domestic emissions are also one of PM2.5 pollution sources. Therefore, the domestic pollution reduction strategy is also the focus of the current need for strengthen efforts.
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