台南市中石化安順廠整治場址土壤及地下水污染範圍調查及整治工作建議計畫
| 中文摘要 | 本計畫針對台南市中石化安順廠整治場址進行土壤及地下水污染範圍調查及整治工作建議，總計完成之調查採樣數量土壤及底泥共計373組，地下水分80組，分樣土壤有20組、地下水4組，並設置10口標準地下水監測井及45口簡易井。調查結果顯示管制區外在員工宿舍區一點發現土壤汞濃度超過土壤污染管制標準，達24.9mg/kg，戴奧辛污染部份，在場址南側之魚塭周圍土堤及道路隨分析結果戴奧辛濃度達3,700ng I-TEQ/kg，超過土壤管制標準，底泥則於竹筏港溪鹿耳門橋東側（表層及深層）超過土壤污染管制標準達1,670ng I-TEQ/kg。管制區內包含之鹼氯工廠區、五氯酚工廠區、單一植被區、草叢區及海水貯水池均有超過土壤管制標準情況，汞污染以鹼氯工廠區最嚴重，最高達3,370 mg/kg，戴奧辛污染以五氯酚工廠區最嚴重，最高達17,600,000 ng I-TEQ/kg，且表、裡及深層（30-45 cm）之土壤中戴奧辛濃度幾乎全部超出管制標準。 本計畫亦以美國試驗與材料學會（American Society for Testing and Materials, ASTM）提出風險評估標準之矯正行動「Standard Guide for Risk-Corrective Action Applied at Petroleum Release Sites, RBCA」進行風險評估。「第一階段風險評估」結果以舊宿舍區域之戴奧辛致癌風險高達1.24E-04為最高，該區域致癌風險的平均值亦高達5.79E-06；「第二階段風險評估計算」結果，污染評估確認區域中所承受戴奧辛致癌風險值與汞非致癌危害商數，皆遠低於一般認定可承受致癌風險值（1*10-6）與非致癌危險商數（1）基準。 對後續處理本計畫建議整治、環境管理及現場封閉貯存等三個分案，其中可瞭解整治方案費用最高，預估超過50億，但可一勞永逸，解決場址污染問題；而環境管理方案費用最低，但每年需投入相當之心力，監測並評估環境管理方案之成效；現場封閉貯存則較符合未來土地使用之實際狀況。 | ||
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| 中文關鍵字 | 戴奧辛、地下水調查、土壤調查, | ||
基本資訊
| 專案計畫編號 | EPA-93-GA12-03-A203 | 經費年度 | 093 | 計畫經費 | 23500 千元 |
|---|---|---|---|---|---|
| 專案開始日期 | 2005/01/01 | 專案結束日期 | 2005/08/31 | 專案主持人 | 宋德高 |
| 主辦單位 | 土污基管會 | 承辦人 | 執行單位 | 工業技術研究院 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | 0000114457.pdf | 1MB | [期末報告]公開版 |
Soil and Groundwater Investigation and Recommendation Actions in the An-Shuen Plant of the China Petrochemical Development Corporation (CPDC) located in Tainan City
| 英文摘要 | This project was focusing on the soil and groundwater remediation in the An-Shuen Plant of the China Petrochemical Development Corporation (CPDC) located in Tainan City (the site), with primary goals on site investigation and recommendation actions. The resulting data showed that there was a soil sample in the employee dormitory showing its mercury concentration was higher than the “Soil Contamination Control Concentration”, as high as 24.9 mg/kg. As for dioxins, samples taken from the fishery earth walls and roads on the south side of the site showed dioxins concentration of 3,700 ng I-TEQ/kg (higher than the Control Concentration). The sediment samples taken at east side of the Lu-Er-Man Bridge of the Chu-Fa-Gun Stream had dioxins concentration higher than the Control Concentration, as high as 1,670 ng I-TEQ/kg. Within the control area including the chloralkali factory, pentachlorophenol（PCP）factory, mono-phase vegetation area, grass area, and seawater storage facility, the contaminant concentrations were higher than the Control Concentration. The chloralkali factory had the most significant mercury contamination, as high as 3,370 mg/kg; PCP factory had the most significant dioxins contamination, as high as 17,600,000 ng I-TEQ/kg. This project also employed the Standard Guide for Risk-Corrective Action Applied at Petroleum Release Sites, RBCA, issued by the American Society for Testing and Materials, ASTM, for the risk assessment. The “Primary Risk Assessment” results showed that the dioxins carcinogenic risk in the old dormitory area was the highest. The “Seconday Risk Assessment” results showed that, within the contamination verification area, the quotient value of the dioxins carcinogenic risk value over mercury non-carcinogenic risk value was much lower than the commonly accepted carcinogenic risk value (1E-06) and non-carcinogenic risk quotient value (1), respectively. As for the continued treatment, this project suggested 3 alternatives, such as remediation, environmental management, and on-site | ||
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| 英文關鍵字 | Dioxin, Groundwater Investigation, Soil Investigation | ||