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    Please use this identifier to cite or link to this item: http://ir.nknu.edu.tw/ir/handle/987654321/23738


    題名: 毒性化學物質環境流布背景調查計畫
    Authors: 田倩蓉;李俊璋;孫逸民
    Chien-Jung Tien
    貢獻者: 生物科技系
    Keywords: 毒性化學物質環境流布;河川;底泥;魚體
    toxic;chemicals;environmental;fate;river;sediment;fish
    Date: 2007-05
    Issue Date: 2015-05-04 09:52:27 (UTC+8)
    Abstract: 研究期間 9605-9612, 研究經費 5,280仟元
    本計畫於5月份及8-9月份期間完成南崁溪、中港溪、八掌溪、曾文溪、鹽水溪、東港溪、林邊溪及蘭陽溪等8條河川底泥及魚體樣本採樣。完成可氯丹、毒殺芬、總汞、有機錫類物質(包含TBT、DBT、MBT、TPhT、DPhT、MPhT)、鄰苯二甲酸酯類物質(包含DMP、DEP、DBP、BBP、DEHP及DOP)及多溴二苯醚類物質(包含4溴、5溴、8溴、9溴及10溴PBDEs)等6類19種毒化物之底泥樣本931個及魚體樣本462個檢測數據。所有底泥及魚體樣本中可氯丹含量均低於定量範圍或ND。底泥樣本中毒殺芬含量平均值及範圍為3.2(ND-16.6)ug/kg乾重,其中以南崁溪平均值9.8ug/kg乾重為最高。魚體樣本中毒殺芬含量平均值及範圍為10.9(ND-40.6)ug/kg乾重,或2.8(ND-9.2)ug/kg濕重,其中以南崁溪平均19.4ug/kg乾重(4.4ug/kg濕重)為最高。底泥樣本中總汞含量平均值及範圍為0.091(0.015-0.794)mg/kg乾重,其中以南崁溪平均0.281 mg/kg乾重為最高。魚體樣本中總汞含量平均及範圍為0.285(<0.05-2.67)mg/kg乾重(0.060 (<0.013-0.552) mg/kg濕重),其中以中港溪平均1.53 mg/kg乾重(0.318 mg/kg濕重)為最高。底泥樣本中六種有機錫化合物檢測濃度平均值及範圍分別為,TBT, 0.06 (ND-0.22) mg/kg乾重、DBT, <0.05 (ND-0.14) mg/kg乾重、MBT, <0.05 (ND-0.37) mg/kg乾重、MPhT, <0.05 (ND-0.34) mg/kg乾重,TPhT及DPhT均低於定量範圍<0.05 mg/kg乾重或低於偵測極限。其中丁基錫化合物中以TBT之檢出率為最高,苯基錫化合物則以MPhT之檢出率為最高。魚體樣本中丁基錫化合物中以TBT之檢出率為最高,13個檢出TBT之魚體樣本濃度界於0.10-0.17 mg/kg乾重(0.02-0.03 mg/kg濕重)。苯基錫化合物則以TPhT之檢出率為最高,12個有檢出TPhT之魚體樣本濃度界於0.05-1.6 mg/kg乾重(0.01-0.35 mg/kg濕重)。底泥樣本中六種鄰苯二甲酸酯類化合物檢測濃度平均值及範圍分別為,DMP, <0.05 (ND-1.7) mg/kg乾重、DEP, <0.05 (ND-0.14) mg/kg乾重、DBP, 0.15 (<0.05-0.65) mg/kg乾重、BBP, 0.08 (ND-0.29) mg/kg乾重、DEHP, 3.4 (0.23-20.6) mg/kg乾重、DOP, 0.10 (ND-1.0) mg/kg乾重。六種鄰苯二甲酸酯類化合物中以DEHP之檢出率及檢出濃度範圍為最高,DBP次之。本年度8條受測河川中以南崁溪底泥中含量為最高,DEHP及DBP平均值分別為11.1 mg/kg乾重及0.32 mg/kg乾重。魚體樣本中鄰苯二甲酸酯類化合物檢測結果顯示,以DEHP、BBP、DBP濃度較高。魚體樣本中DEHP平均值及範圍為26.0 (0.90-398) mg/kg乾重,5.2 (0.16-75.7) mg/kg濕重,其中以林邊溪平均159 mg/kg乾重(30.6 mg/kg濕重)為最高。底泥樣本中PBDEs總量平均值及範圍為9,895 (177-137,463) ng/kg乾重。整體而言,兩次採樣河川底泥中PBDEs總濃度平均值均以南崁溪為最高,第一次採樣平均值為52,332 ng/kg乾重,第二次為58,898 ng/kg乾重,惟多數底泥樣本中PBDEs同源物因基質干擾問題未完成定量分析,總濃度值計算時可能會受影響而降低。魚體樣本中PBDEs總量平均值及範圍為181,323 (10,822-1,200,223) ng/kg lipid(3,625 (215-18,323) ng/kg ww),其中以南崁溪PBDEs總量平均值及範圍521,030 (160,347-1,200,223) ng/kg lipid(11,077 (1,846-18,323) ng/kg ww)為最高,檢測魚種有吳郭魚及泰國鱧;東港溪321,182 (55,162-742,051) ng/kg lipid(5,886 (2,217-10,631) ng/kg ww)次之,檢測魚種有烏魚、吳郭魚及豆仔。持續蒐集於2006-2007年間發表之環境流布相關文獻,包括可氯丹37篇、毒殺芬6篇、汞45篇、鄰苯二甲酸酯類物質5篇、有機錫類物質15篇及多溴二苯醚類物質49篇,共新增157篇文獻全文電子檔之收錄,及文獻內容中與環境流布相關之測值資料庫建置與資料解析。國內多氯聯苯之人體健康風險評估結果顯示,食用國內河川中野生魚類將大幅提高人體健康危害風險,而其他暴露來源之貢獻量均在安全範圍。顯示在目前國內河川野生生物體內蓄積之多氯聯苯含量程度下,建議應禁止國人食用國內河川野生生物,以預防及控制健康危害的產生。國內汞之人體健康風險評估結果顯示,在接受一般環境中大氣吸入性暴露及食物食入性暴露下,各類暴露來源之貢獻量均在安全範圍,其中以市售大型鹹水魚類之汞暴露量較高,然而此類大型鹹水魚類之汞暴露來源多來自全球性跨領域污染問題,故建議國人降低攝食頻率以預防及控制健康危害的產生。
    There are 252 toxic chemicals in the revised Toxic Substances Control Act (TSCA) promulgated by Taiwan EPA. The purpose of this project is to establish a practical and appropriate toxic data as the basis of further related policy-making and policy-executing. Three approaches would be applied to accommodate this goal. The first was to conduct field studies and empirical measurements in sediments and fishes of the 8 rivers to explore the concentrations and distribution for those selected chemicals, including chlordane, toxaphene, mercury, organotin compounds (OTCs), polybrominated diphenyl ethers (PBDEs) and phthalates (PAEs). The second was to collect and analyze the results of survey report sponsored by research institutes and governmental institutes in the past ten years in Taiwan, combining with the data of spatial and temporal distributions, the concentration and allocation profile in various environmental media and humans can be elucidated for these toxic chemicals. In this research, about the environmental fate of the toxic chemical compounds in sediments and fishes of the 8 rivers, we finished the sampling and analysis work of 1,393 samples. We got 157 literatures about the chemical compounds, through the collection and the analysis of survey report sponsored by research institutes and governmental institutes in the past ten years in Taiwan, combining with the data of spatial and temporal distributions, the concentration and allocation profile in various environmental media and humans were elucidated for these toxic chemicals.
    關聯: 行政院環保署計畫 / 計畫編號 EPA-96-J104-02-207
    Appears in Collections:[生物科技學系] 研究計畫
    [生科系] 田倩蓉

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