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年度	107	專案性質	實驗性質
專案類別	研究專案	研究主題	調查
申請機構	崑山科技大學	申請系所	環境工程系
專案主持人	吳庭年	職等/職稱	教授
專案中文名稱	雷射激發螢光技術應用於油品污染鑑識之研究
中文關鍵字	油品,鑑識,雷射激發螢光,地下水污染,場址調查
專案英文名稱	The Study on Forensics of Fuel Leakage by Laser Induced Fluorescence Technology
英文關鍵字	fuel, forensics, LIF, groundwater contamination, site investigation
執行金額	915,940元
執行期間	2018/1/10 至 2018/11/30
計畫中文摘要	國內加油站發生油品洩漏污染時，常有台塑石化公司與台灣中油公司不同供應源的混合污染情況，目前用以區分台塑石化與台灣中油生產供應的市售柴(汽)油油品之作法，係利用混合國內兩大供油公司之柴油樣品進行化學指紋圖譜分析、診斷比值計算與統計分析，建立資料庫做為實際鑑識樣品的比對基礎。若現場採樣取得的樣品不具代表性，實驗室污染鑑識的工作仍然徒勞無功。因此配合現場即時探測技術是有需要的。 國內場址污染調查作業使用的雷射激發螢光(LIF)技術係以土壤介質中「自由相態」油品污染物為調查標的。油品中常含各類多環芳香烴(PAH)化合物，因PAH結構具有螢光特性，利用LIF技術可偵測環境介質中油品污染物的存在與否。本研究計畫利用各類油品內含的螢光特性物質，以雷射激發螢光系統建置本土化油品螢光特徵圖譜，以開發其應用於油品污染鑑識的功能。 本研究計畫主要內容為建置台灣本土化油品之螢光特徵圖譜資料庫，包括台灣中油公司與台塑石化公司的市售油品，特別針對加油站污染型態建立混合油品的螢光特徵圖譜。圖譜辨識的方式藉助統計多變量分析的工具，發掘適用的螢光指標與辨識基準，並建立油品鑑識的標準作業程序。油品存在於土壤介質中螢光訊號會衰減，因現地風化作用油品內含部分螢光成分會降解消失，另可進行風化試驗測試其螢光特性隨時間受風化程度之影響。
計畫英文摘要	Fuel leakages often contain the mixture of Formosa’s fuel products and CPC’s fuel products in many domestic gasoline station contaminated sites. The forensic scheme to differentiate Formosa’s fuel products and CPC’s fuel products is based on the chemical fingerprint analysis, the diagnostic ratio calculation and the statistical analysis of these two supplier’s diesel samples. If the obtained field samples are not representative, laboratory work of contamination forensic is still in vain. Therefore, it is necessary to employ real-time investigation technology to upgrade environmental forensic scheme of fuel contamination Laser induced fluorescence (LIF) technology is commonly used on site investigation, and its targeted contaminants are free products of fuel leakages during investigation. Fuels contain many PAH compounds, which possess fluorescence characteristics. LIF technology is able to detect the presence of fuel products in the surroundings according to fuels’ fluorescence characteristics. This study is aimed at establishing domestic fuels’ fluorescence spectrum databank by LIF detection, and its further application is to develop the environmental forensic scheme of fuel contamination. The major research work is to establish domestic fuels’ fluorescence spectrum databank, including Formosa’s fuel products and CPC’s fuel products. The fluorescence spectrum of fuel mixtures is especially built for the type of gasoline station contamination. The identification of fluorescence spectrum is conducted with statistical multivariate analysis tools, and the suitable fluorescence index and their thresholds were developed to complete the standard operation procedure (SOP) of environmental forensic scheme of fuel contamination. The strength of fluorescence became weak when fuels present in soil medium. The certain contents with fluorescence characteristics may decay or diminish due to in-situ weathering effect. Besides, the lab weathering experiments are conducted to evaluate the influence of fluorescence characteristics by temporal weathering.