2012-12-102024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/670645摘要：行政院環保署在過去的兩年多對國內20多處工業區（全國共有151處）進行調查，確認4處紅燈（污染已擴散區外）高污染潛勢工業區，其中包括中壢工業區，這引起了公眾的密切關注。目前中壢工業區已經被污染的地下水將如何遷移？污染源都處在什麼地方？污染如何擴散？地質和水文條件對污染的擴散會有什麼影響？解決這些問題是治理污染的必要途徑。雖然環保署已經知道有幾家與污染相關的廠家，可以截斷現有污染的排放，然而要對已經被污染的地下水體回答上述問題，需要利用多種同位素和地球化學方法（Multiple-evidence of isotopic and geochemical approach, MEIGA），研究地表水和地下水的同位素和地球化學特徵，判斷研究區內的地下水來源、混合、補給和運移狀況，結合污染物濃度的水準，以及研究區的地質、水文、工程等背景資料，尋找上述問題的答案。 在101年的環保署土壤及地下水污染研究與技術提昇補(捐)助計畫中，基於美商傑明公司的長期調查，我們用多種同位素和地球化學方法（MEIGA）對頭份工業區進行了詳細地研究，取得了非常有益的經驗和結果。為此，本計畫將用MEIGA法研究中壢工業區的地下水污染，將對研究區的地表水/地下水在枯水期和豐水期分別採樣，進行同位素和地球化學分析。檢測分析項目包括導電度、氯度、氨氮、d18O，dD，d13C（DIC），Ca，Mg，Sr，K，Ba，Na，Fe，Mn，Zn，Cr，三氯乙烯。這些分析結果，將使我們掌握地下水的來源、補給、混合和運移狀況，探測三氯乙烯、氨氮和重金屬污染的程度，瞭解含氯有機物在地下水中降解、氧化、運移的情況，為該污染場址提供有關污染來源和擴散過程的科學依據。通過這個案例的執行，我們可以再次證實用MEIGA模式研究地下水的污染，為環保機構提供一個有效的技術方法。 <br> Abstract: According to the investigation on 22 industrial technology areas (a total of 151 such areas in Taiwan) during the past 2~3 years by Taiwan EPA, there are four industrial technology areas with Red Light sign which means that the areas have significant contamination and high potential proliferate. The investigation result called up strongly public attendtion. Chungli (Zhongli) Industrial Technology Area is one of the sites with Red Light sign. Under such a circumstance, the local and central governments have ordered the related corporations and manufactories to clean up the contamination. One may cut off current discharge of pollutants from those manufactories. But, the pollutants in the contaminated site will continue to spead in groundwater. How do those pollutants migrate in the groundwater? Where are the sources of the pollutants in both surface and underground? How do the geological and hydrological conditions to influence penetration, diffusion and mixing of the pollutants in the groundwater system? Answers to these questions will be the key to clean up the contaminations. In the on-going Taiwan EPA project, we have used Multiple-evidence of isotopic and geochemical approach (MEIGA) to study Toufen Industrial Technology Area. We have conducted the measurements of H, O and C stable isotopes, elemental concentrations, chlorinated hydrocarbons, as well as many other chemical parameters of the water samples. Throughout this study, we have pin down the contamination source, flow pattern in the groundwater system and built up a MEIGA method. This MEIGA can be tested in Chungli Industrial Technology Area again. In this proposed project, we plan to collect surface water samples and groundwaters from 30 designed wells in the Chungli Industrial Technology Area in both wet and dry seasons. A total of 90 samples from rain, stream and well waters at different depths will be measured for conductivity, chlorinity,NH3-N, dD, d18O, d13C of DIC, and elemental contents of Ca,Mg,Sr,Ba,Na,K,Fe,Mn,Zn,Cr, concentrations of Trichloroethene. These data results together with the geological, hydrological and engineering background information will allow us to understand the source, mixing, recharge and migration of the groundwater in the study area; to detect degradation, oxidation and migration of the chlorinated hydrocarbon contaminations; and to provide scientific evidence of the original sources of the heavy metal and chlorinated hydrocarbon contaminations. Throughout this study, we test and confirm our MEIGA model again and provide a good method for Taiwan EPA.同位素地球化學地下水污染重金屬污染中壢工業區Isotopesgeochemistrygroundwater contaminationheavy metal pollutionChungli Industrial Technology Area