查詢結果分析
來源資料
頁籤選單縮合
題 名 | 以鉛同位素組成特徵探討臺北關渡平原農地污染來源=Identifying Pollution Source of Paddy Soils by Using Lead Isotope Ratio Measurements at Guandu, Taipei |
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作 者 | 張尊國; 沈川洲; 陳聖堃; 羅允杰; 鄭百佑; 徐貴新; 林聖淇; | 書刊名 | 農業工程學報 |
卷 期 | 56:4 2010.12[民99.12] |
頁 次 | 頁1-10 |
分類號 | 445.6 |
關鍵詞 | 鉛同位素; 同位素指紋辨識; 來源鑑定; 多頻感應耦合電漿質譜儀; 關渡平原; Pb isotopes; Isotopic fingerprinting; Source identification; MC-ICP-MS; Guandu plain; |
語 文 | 中文(Chinese) |
中文摘要 | 臺北關渡平原農地砷及鉛含量分別介於 8-458 mg kg-1及 23-600 mg kg-1,在現有農耕地中此含量已屬於異常之高。為確定砷及鉛來源及影響範圍,本研究以多頻感應耦合電漿質譜儀(MC-ICP-MS)檢測環境介質灌溉水源與土壤的鉛同位素比值 206Pb/207Pb、208Pb/207Pb,經空間群集分析,並藉由地理資訊系統展示,比對歷史的圖層資料以鑑定砷及鉛的來源。結果顯示,因天然地球化學特性,地熱谷溫泉砷及鉛含量偏高,而關渡平原農地東南側熱區之土壤則是過去引用地熱谷水源灌溉長期累積,導致今日農地砷及鉛濃度異常。 |
英文摘要 | coupled plasma mass spectroscopy(MC-ICP-MS), to distinguish pollution sources. Using geographical information system (GIS) technology, a significant spatial cluster relationship is observed for sample lead isotope ratios. Results show that the migrations of As and Pb are primarily influenced by geochemical processes. The hot-spot areas for As and Pb located in the southeast parts of Guandu Plain arose from the long-term irrigated the water mixed with hot spring from the Thermal Valley. |
本系統中英文摘要資訊取自各篇刊載內容。