Intercomparison of Air Pollution Potential among Various Climatological Zones in Taiwan

台灣各地區大氣污染潛勢之比較分析

10.30017/EP.200206.0002

張哲明(Che-Ming Chang)；張隆男(Long-Nan Chang)；郭坤土(Kung-Tu Kuo)；呂世宗(Shih-Chong Lu)

大氣擴散模式 ； 大氣污染潛勢 ； climatological dispersion model ； air pollution potential

環境保護

25卷1期（2002 / 06 / 01）

15 - 23

英文

台灣近三十年來由於工業化和都市化，生活水準提升，能源消耗與日俱增，環境問題隨之日趨嚴重，空氣污染尤為重要問題之一。空氣污染主要受人為因素(污染源排放)和自然因素(氣象和氣候因素及地形等影響)，而近年對污染源排放已較能掌握控制，而受大氣環境影響方面之程度較不瞭解。本研究首先採用2001年中央氣象局所屬之台北測站等14個站和民航局中正氣象台，逐時氣象資料進行大氣擴散潛勢分析，再利用大氣擴散模式(TCM)逐站進行年及各季模式模擬，模擬結果比較分析全台灣大氣污染潛勢顯示，南投、嘉義、台南和台中較不利污染物擴散，而花蓮、桃園、屏東、新竹和台東較有利污染物擴散。

Air pollution episodes in a region depends heavily on local meteorological conditions. Therefore it is interesting to compare air pollution potential among 15 climatological regions in Taiwan. A simplified climatological dispersion model (TCM) is used to estimate long term average ground concentration. Typical stacks with various heights and emission rates located in the center of each climatological zone are assumed to be the pollution sources. Hourly meteorological data for the CWB and CAA weather stations in 2001 are used in this study. The maximum ground concentrations are used as an index for the intercomparison of the air pollution potential. Finally, the diurnal and seasonal variation of the air pollution potential is also discussed.