| Abstract: | 本研究在2010年1月期間於中部科學園區進行懸浮微粒（PM2.5-10和PM2.5）的採樣。並且對重金屬（鋁，砷，鋇，鈣，鎘，鈰，鈷，鉻，銫，銅，鏑，鉺，銪，鐵，鎵，釓，鍺，鉿，鈥，鉀，鑭，鎦，鎂，錳，鉬，鈉，釹，鎳，鉛，鐠，銣，銻，硒，釤，錫，鍶，鋱，鈦，銩，鈾，釩，釔，鐿，鋅，鋯）進行了感應耦合電漿質譜儀的分析。其中有32個重金屬其PM2.5濃度的較PM10-2.5濃度來的高。本研究利用T檢定以及主成分分析法從45種PM2.5的金屬濃度中挑選出砷，鎘，鍺，鉛，錫，鋅等元素，以此元素來代表中部科學工業園區的指標排放金屬。從常態分佈曲線當中，可以計算出規範這些指標物質的相關濃度分別為：砷2.78 ng/m3，鎘1.06 ng/m3，鍺0.21 ng/m3，鉛58.48 ng/m3，錫5.20 ng/m3和鋅94.25 ng/m3。在風險評估中，本研究利用暴露方程式做計算，計算出的危險指數以及致癌指數皆在限制的範圍內的標準。
Particulate matters (PM2.5-10 and PM2.5) were measured in this research during January in 2010. The concentration of heavy metals (Al, As, Ba, Ca, Cd, Ce, Co, Cr, Cs, Cu, Dy, Er, Eu, Fe, Ga, Gd, Ge, Hf, Ho, K, La, Lu, Mg,Mn, Mo, Na, Nd, Ni, Pb, Pr, Rb, Sb, Se, Sm, Sn, Sr, Tb, Ti, Tm, U, V, Y, Yb, Zn, Zr) were analyzed by inductively coupled plasma mass spectrometry. There are 32 heavy metal concentrations of PM2.5 which with the higher data than those of PM10-2.5.This study used T-test and Principle Component Analysis from PM2.5 metal concentrations, it can learn from 45 kinds of elements in As, Cd, Ge, Pb, Sn, Zn and other elements, which obtained from the Central Taiwan Science Park (CTSP) indicators emissions. From the normal distribution analysis it can be worked out by the specification of these indicators substance concentration which about the following level: As 2.78 ng/m3, Cd 1.06 ng/m3, Ge 0.21 ng/m3, Pb 58.48 ng/m3, Sn 5.20 ng/m3 and Zn 94.25 ng/m3. In the risk assessment, the exposure of this study does calculate formula, the calculated rate of the carcinogenic hazard index and is within the limits of the standard. |
