| Abstract: | 懸浮微粒之大小及成份,均會影響地球輻射通量及氣候變遷。本計畫的目的是以物理及化學方法互相配合,探討台北都會區懸浮微粒之粒徑分佈、物理型態與化學成份。 本計畫在十二月及三至五月,採集懸浮微粒(PM10及PM2.5),以掃瞄式電子顯微鏡觀測懸浮微粒之物理型態;以原子吸收光譜儀測量Al,Ca,Fe,K, Mn,Na,Si,Pb及Zn等微量重金屬及地殼元素成份。以上述之物理觀察及化學成份分析,來探討大陸沙暴的長程傳播,為本計劃今年度之重點。
Radiation flux and global climate are affected by both the size and composition of the particulates in the air. The objective of this study is to investigate the size distribution, particle morphology and chemical composition of the air-borne particulates in Taipei Metropolitan Area. In December and March to May, PM10 and PM2.5 samples were taken in Taipei Metropolitan Area.. The particle morphology was observed by a scanning electric microscope. The chemical composition (Al, Ca, Fe, K, Mn, Na, Si, Pb & Zn) was analyzed by atomic absorption spectroscopy. The main focus of this year was trying to collect enough evidence to prove the transportation of dust storms from mainland China to Taiwan. |
