98年度彰化縣線西及伸港地區環境戴奧辛定期監測計畫
| 中文摘要 | 本年度持續對彰化縣線西及伸港地區及附近污染源之煙道排放污染物質、環境空氣、落塵、土壤、底泥及植物加以監測並評估影響範圍，以提供潛在風險資訊與決策預防。由3季調查結果顯示，煙道中戴奧辛總毒性當量(1)台灣鋼聯股份有限公司介於0.122~0.288 ng I-TEQ/Nm3，(2)慶欣欣鋼鐵股份有限公司-彰化鋼鐵廠介於0.122~0.243 ng I-TEQ/Nm3，(3)榮民工程股份有限公司-中區事業廢棄物綜合處理中心介於0.010~0.055 ng I-TEQ/Nm3；台灣鋼聯公司集塵灰、爐渣及氧化鋅總毒性當量分別介於0.179~0.511、0.0004~0.009、2.50~8.88 ng I-TEQ/g；環境空氣總毒性當量(1)台灣鋼聯股份有限公司分別介於0.028~ 0.549 pg I-TEQ/m3，(2)鄰近養鴨場等地點介於0.013~0.077 pg I-TEQ/m3；戴奧辛沈降量總毒性當量(1)台灣鋼聯股份有限公司分別介於0.028~0.549 pg I-TEQ/m3，(2)鄰近養鴨場等地點介於0.02~0.077 pg I-TEQ/m3；土壤總毒性當量介於0.560~5.16 ng I-TEQ/kg d.w；植物總毒性當量第1季及第3季各鴨場介於0.563~3.30 ng I-TEQ/kg d.w，底泥總毒性當量介於1~5 ng I-TEQ/kg。 由本計畫所測得資料配合該地特定污染源煙道排放，利用主成分分析統計方法進行可能污染源與受體間戴奧辛特徵剖面之比對，分析圖譜因子1及因子2佔總變化量百分比總和均達90％以上，歸納結果顯示，榮工公司事業廢棄物綜合處理中心3次分析的戴奧辛和呋喃同源物型態的關聯性較佳，且排放管道廢氣與環境空氣、落塵土壤、底泥及植物樣品的戴奧辛和呋喃同源物型態的關聯性在同一群集中；台灣鋼聯股份有限公司環境空氣第3次分析資料與台灣鋼聯之集塵灰原料有密切關聯性。 本計畫在模式應用上，以ISCST3模式模擬台灣鋼聯股份有限公司、榮工公司事業廢棄物綜合處理中心及慶欣欣鋼鐵股份有限公司-彰化鋼鐵廠鄰近地區之大氣PCDD/Fs平均濃度，該地區最大時平均著地濃度出現於慶欣欣附近，達139.57fg I-TEQ/m3。另假設鋼聯廠內之PCDD/Fs沈降量均來自面源逸散，利用實際檢測值與模擬值之差異，重設廠區排放量，當模擬值與鋼聯廠內檢測沈降量相同時推算出台灣鋼聯面源PCDD/Fs逸散速率為379 pg I-TEQ/m2/sec。對該區域進行風險評估，經由模式估算出單一污染源即戴奧辛之致癌風險值為9.90×10-07小於致癌性之風險值10-6，顯示應無危及環境之虞。 | ||
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| 中文關鍵字 | 戴奧辛、主成分分析、風險評估 | ||
基本資訊
| 專案計畫編號 | 經費年度 | 098 | 計畫經費 | 3880.65 千元 | |
|---|---|---|---|---|---|
| 專案開始日期 | 2009/05/06 | 專案結束日期 | 2009/12/31 | 專案主持人 | 胡育麟 |
| 主辦單位 | 彰化縣環境保護局 | 承辦人 | 劉祥琪 | 執行單位 | 澳新科技股份有限公司 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | 彰化縣環境保護局計畫成果中英文摘要.pdf | 0MB |
Environmental dioxin monitoring project in Xianxi and Shengang township of Chang-hua county
| 英文摘要 | The main objective of this report is to provide information of potential risk and preventative policy by investigating and monitoring dioxin pollution of stack air、ambient air、dust fall、soil、sediment and vegetation in the area of Hsien His and Sengang in Changhua County. The third-quarter investigation result shows that the total dioxin toxicity equivalency quotients(TEQ) of the stack air in (1) Taiwan Steel Union Co.、Ltd. are between 0.122 and 0.288 ng I-TEQ/Nm3、(2) E-TOP Metal Co.、Ltd. - the Changhua Ironworks、between 0.122 and 0.243 ng I-TEQ/Nm3、(3) RSEA Engineering Co.、Ltd. – the Mid-Taiwan Waste Disposal Center、between 0.010 and 0.055 ng I-TEQ/Nm3. Next、the mean of dioxin TEQ of dust fall、cinder and zinc oxide of Taiwan Steel Union Co.、Ltd. is 0.179 ~ 0.511 ng I-TEQ/g、0.0004~0.009 ng I-TEQ/g、and 2.50~8.88 ng I-TEQ/g respectively. The means of dioxin TEQ of ambient air are as the followings: (1) Taiwan Steel Union Co.、Ltd.: 0.028~0.549 pg I-TEQ/m3、(2)other adjacent locations、e.g. the duck farms: 0.013~0.077 pg I-TEQ/m3. As for total toxicity of dioxin、the means are: (1) Taiwan Steel Union Co.、Ltd.: 0.028~0.549 pg I-TEQ/m3、(2) other adjacent locations、e.g. the duck farms: 0.02~0.077 pg I-TEQ/m3. Regarding dioxin TEQ of soil、the mean is between 0.560 and 5.16ng I-TEQ/kg d.w. Furthermore、the first-quarter and third-quarter means of dioxin TEQ of vegetation in all duck farms are 0.563~3.30 ng I-TEQ/kg d.w、and the mean of dioxin TEQ of sediments is 1~5 ng I-TEQ/kg. Using the collected data in this project to match the local polluted stack air and adapting principal component analysis(PCA) to examine the contrast between the possible pollutants and dioxin cross-section features、our monitoring result demonstrates that factor 1 and factor 2 in the spectrum occupy over 90 percent in the total variation. The results imply that the correlation between the three dioxin tests and furan congener of RSEA Engineering Corporation – the Mid-Taiwan Waste Disposal Center is higher. Moreover、the correlations among exhaust、dioxin from ambient air、sediments、dust fall、soil and vegetation sample、and furan congener fall in the same cluster. In addition、the data from ambient air analysis of the third quarter in Taiwan Steel Union Co.、Ltd. is highly-correlated to raw materials of dust fall. This project adapts the ISCST3 model to simulate the average atmosphere concentration in the neighboring areas of Taiwan Steel Union Co.、Ltd.、,RSEA Engineering Co.、Ltd. – the Mid-Taiwan Waste Disposal Center、and E-TOP Metal Co.、Ltd. - Changhua Ironworks、the maximum hour concentration of which simulated near E-TOP Metal Co.、Ltd. reaches 139.57fg I-TEQ/m3. Another assumption is that all PCDD/Fs deposition in the Taiwan Steel Union Co.、Ltd. is from surface emission、and the difference between the measured and the simulated values is used to reset the drain amount. When the simulation and the amount of measured deposition are consistent、it can be calculated that the rate of PCDD/Fs surface divergence from Taiwan Steel Union Co.、Ltd. is 379 pg I-TEQ/m2/sec. To assess the risk in this area with this model、the rate we estimate with having cancer caused by single pollutant、i.e. dioxin、is 9.90×10-7,which is less than 10-6 of the risk of having cancer. The result suggests that it does not seem to harm the environment. | ||
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| 英文關鍵字 | Dioxins、Principal Component Analysis(PCA)、Risk Assessment | ||