Establishing Air Quality Background Concentration of Meshing By Using Objective Analysis in Taiwan

• Main Authors: Che-Hao Lai, 賴哲豪
• Other Authors: 張能復
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/25813388514358575138

碩士 === 國立臺灣大學 === 環境工程學研究所 === 101 === The focus of this research is using the monitoring data of Taiwan EPA and the simulation data of CMAQ air quality model to calculate the ratios, and using the ratios to compute the background concentration on every grid in Taiwan by objective analysis. This background concentration will be the basis of Environmental Impact Assessment (EIA). At last, removing the air quality station to calculate the benchmark for verifying the model and comparing the suitability of different weighting function in objective analysis for every air pollutant (PM10, NO2, SO2, O3, PM2.5). The result of research is the inverse distance square weighting has a good effect in simulating the background concentration for PM10, O3, PM2.5, and the inverse distance weighting has a good effect in simulating the background concentration for NO2, SO2. Overall, the inverse distance square weighting is better than other weighting function in simulating the background concentration.