EPA-105-GA03-03-A283

105

4,600 千元

提升土壤及地下水污染調查及整治技術工作

2016/10/25

2017/12/31

夏安宙

土污基管會

吳雅婷

業興環境科技股份有限公司

土壤及地下水

環境鑑識、柴油洩漏時間定年、發展策略規劃

Environmental Forensics, Diesel Leaking age dating, Development Strategy Planning

田倩蓉；王炳南

陳士賢

吳孟禹

07-3521515#2242

mywu@setl.com.tw

本計畫目的為整合國內外鑑識技術的相關經驗，建立我國鑑識技術發展藍圖，並擬透過實際場址樣品分析及觀察，建立柴油鑑識之程序，同時依實驗數據，驗證並調整油品洩漏時間方程式。 本計畫工作架構包含：(1) 研擬我國土壤及地下水環境污染鑑識技術發展規劃、目標與藍圖，並規劃整合各相關領域之鑑識制度推動方案;(2) 配合土壤及地下水污染整治法及相關環保法規執法所需，提出執行環境鑑識相關工作需建立之作業程序或參考手冊等清單;(3) 驗證油品洩漏時間推估模式，調整各項參數並評估適用性，評析污染時間序列推估方法可行性。 油品污染時間洩漏模式之驗證的工作中，工作團隊依據污染情形背景資料以及與業者溝通結果，選取兩處油品污染場址，分別為A加油站與B儲油設施，兩處場址皆已完成三季採樣工作，且均已進行油品指紋鑑識與菌相分析等工作。油品指紋鑑識共執行包含總石油碳氫化合物、直鏈烷類化合物、類異戊二烯、雙環類倍半萜烷、多環芳香烴化合物等，並利用雙比值分析判斷油品特性，並將A加油站與B儲油設施之樣本進行主成分分析。樣品菌相分析是利用次世代定序方式，分析樣本中的微生物多樣性豐富度。利用樣本分析所得的參數與回歸模式建立油品洩漏時間方程式，推估兩處場址污染發生時間，推估結果顯示，A加油站油品洩漏時間約為5.39年前，B儲油設施約為3.33年。 工作團隊回顧國內外鑑識相關文獻與污染訴訟案例，研析國內污染鑑識之需求，並針對污染鑑識工作的技術面、制度面、法律面分別建立未來發展藍圖，並提出各單位之污染鑑識制度推動方案。此外工作團隊也評析國內外污染案件的訴訟過程與污染鑑識需求，提出污染調查與鑑識之參考指引或手冊之清單。

環境鑑識、柴油洩漏時間定年、發展策略規劃

EPA-105-GA03-03-A283(期末報告公開版).pdf

15MB

期末報告(公開版)

2018/3/1 上午 12:00:00

To effectively determine the fate of spilled fuel in the subsurface environment and successfully identify source(s) of spilled petroleum products is, therefore, extremely important in many liability cases. Given the frequent change of ownership and switch of fuel suppliers in many service stations, determination of liability to clean up the fuel-contaminated site will normally require the aids of environmental forensics. Combined and integrated multiple tools are often necessary under such situations. Development of hydrocarbon fingerprinting techniques will continue as analytical and statistical methods evolve. It is anticipated that these developments will further enhance the utility and defensibility of oil hydrocarbon fingerprinting. In particular, diesel fuel contamination is the focus of this study. The objective of this project was to integrate forensic techniques from different aspects, to develop the blueprint of environmental forensics, and to employ various statistical and numerical analysis tools to assess temporal scale when diesel fuel spills occur. Validation and modification of empirical equations developed in our previous work was also performed. There are three major tasks: (1) to develop the blueprint of environmental forensics in terms of soil and groundwater contamination, (2) to provide the procedures and guidelines may be required following the current environmental regulations, (3) To verify the empirical equations to predict the spill time of diesel fuels. In order to validate and modify the empirical equations developed in our previous project, two diesel contaminated gas stations were selected. A gas station was operated by Formosa Petrochemical Corporation and B gas station by CPC Corporation, respectively. Seasonal soil sampling was performed in two sites at three sampling points with different depths. Groundwater sample was collected from one monitoring well. Total petroleum hydrocarbon, characteristic compounds and biomarkers were identified in each sample. Diversity of microorganisms in the subsurface environment was analyzed by next-generation sequencing. By using the empirical equation it was found the fuel leaking time was estimated about 5.39 years in A gas station and 3.33 year for B gas station. Previous work and case studies related to assessment of the value of environmental evidence in the investigation of crime, identification of environmental legislation and examine its application to examples of environmental pollution, analytical sciences used in the detection and investigation of crimes against the environment were generated to fulfill the need for future development in the aspect of soil and groundwater contamination. Environmental forensics has been an integral tool for site assessments and other environmental investigations. Significant advances have been made over the past 20+ years with regard to detailed compositional analysis of various contaminants, often referred to as “chemical fingerprinting”. In addition to analytical testing, there is a multitude of graphing and statistical methods which are employed due to the fact that most site assessments have multiple possible sources of the contaminant in question. Also there may be need from the legal aspects, therefore, the blueprint for future development of environmental forensic in the aspects of forensic technique development, regulation establishment, and operation procedures were organized in this project for purpose of environmental administration.

Environmental Forensics, Diesel Leaking age dating, Development Strategy Planning