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年度	105	專案性質	實驗性質
專案類別	研究專案	研究主題	評估
申請機構	國立台灣大學	申請系所	生物環境系統工程學系
專案主持人	張尊國	職等/職稱	教授
專案中文名稱	Itrax應用於環境鑑識之探討
中文關鍵字	環境鑑識,底泥,土壤,離子交換樹脂,爐渣,重金屬
專案英文名稱	Study the applicability of Itrax for environmental forensics
英文關鍵字	environmental forensics,sediments,soil,Ion Eexchange Resin,slag,Heavy Metal
執行金額	1,000,000元
執行期間	2016/1/1 至 2016/12/31
計畫中文摘要	違法偷排含重金屬廢水或廢棄物在台灣是造成土壤與底泥污染的最大威脅，對環境的殘害與影響正逐漸對生活在這片土地的居民產生傷害。本研究以桃園市大園區滲眉埤汙染案為探討對象，利用Itrax岩芯掃描儀針對底泥進行元素種類判定、元素半定量快速篩測與非彈性和彈性散射之比值(Mo inc/coh)，評估該儀器所提供大量且多元的數據資料對於研判環境污染物質來源之適用性。研究資料顯示滲眉埤岩芯所含元素包括矽、鈣、鐵、錳、鎳、銅、鉛、鉻與鋅等9種。其中，錳、鋅、銅與鈣的濃度含量在不同底泥岩芯剖面深度的變化趨勢有相似之處。合理懷疑該工廠利用大雨或假日將時，連帶將噴入大量碳酸鈉和石灰溶液至滌塵器中使其和煙道氣發生酸鹼中和的物質一併連同非法汙水與汙泥排入滲眉埤所致。如果採用傳統底泥混樣的分析方式，會因底泥所含重金屬濃度均勻化而無法顯示出金屬濃度隨岩芯深度而有連續檢測數據的特性，這也正是凸顯Itrax檢測技術的優勢所在。最後，本計畫認為Itrax岩芯掃描儀之檢測數據靈敏度佳、元素種類判定多元與岩芯連續掃描等特性，可作為國內未來環境鑑識科學中釐清汙染來源責任歸屬問題的分析工具之一。
計畫英文摘要	Illegal wastewater discharge containing heavy metals pose the greatest threat to Taiwan’s soil and sediment contamination. The impact on the environment and gradually harmed on the people living in this land. In Sheng-Mei pond pollution case study, we aimed to use Itrax core scanner patterns for sediment samples to determine the type of elements, the elements and the ratio of the inelastic scattering and elastic (incoherent over coherent scattering, inc/coh), further evaluate the suitability of large and diverse data sources to environmental pollutants judgments of the instruments provided. Research data show the “Sheng-Mei pond” core contains elements include nine kinds of silicon, calcium, iron, manganese, nickel, copper, lead, chromium and zinc and so on. Manganese, zinc and copper content concentration consistent in different sediment core cross-sectional trends depth. In heavy rain or on holidays, reasonably suspect that the plant will be sprayed with a large number of sodium carbonate and lime solution to the dust and the flue gas to acid-base neutralization of the material together with the illegal sewage and sludge discharged into the pond due. If the traditional method of sediment mixing sample analysis, sediment concentration of heavy metals contained in the metal concentration can not be shown with the core depth and continuous testing data characteristics. It is also highlighting the advantages of the Itrax detection technology. Finally, the project considered that the detection data of Itrax core scanner had good sensitivity, multi-element classification and continuous scan of core, which could be used as one of the analytical tools to clarify the attribution of pollution source responsibility, especially as one of the environmental forensics tool to clarify the sources of pollution in future.