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    題名: 毒性化學物質環境流布調查分析計畫(I)
    Authors: 李俊璋;田倩蓉;孫逸民;王應然
    Chien-Jung Tien
    貢獻者: 生物科技系
    Keywords: 環氧氯丙烷;環境流布;;三丁基錫;三苯基錫;;有機氯農藥
    Environmental Fate;Mercury;Oragnochlorine Pesticides;Triphenyltin;Tributyltin;Benzene;Epichlorohydrin
    Date: 2003-03
    Issue Date: 2015-05-04 09:52:29 (UTC+8)
    Abstract: 研究期間 9203-9212, 研究經費 5,270仟元
    本計畫完成的工作內容包括,採樣現場環境資料蒐集、採樣及檢測方法建立及QA/QC之執行、12條河川枯水期及豐水期及7座港口環境之底泥及生物體樣本採樣、樣品分析與數據整理、12家運作工廠現場採樣、樣品分析及數據整理;毒化物環境監測規劃;國內、外毒化物環境流布相關文獻蒐集及整理;暴露評估模式建立及相關暴露族群之不同暴露途徑暴露評估;運作工廠毒化物釋放減量策略資料蒐集、建議及各家運作工廠釋放量推估方式合理性評估。在一般環境實地量測工作方面,共完成河川環境之120個底泥樣本及41個(含7個內臟組織樣本)生物體樣本之汞含量檢測,以及120個底泥樣本中11種有機氯含量檢測。港口環境採112個底泥樣本及44個(含8個內臟組織樣本)生物體樣本,進行氧化三丁錫(TBT)及氫氧化三苯錫(TPhT)含量檢測。運作工廠實地量測工作方面,共完成247個環氧氯丙烷(ECH)之樣本檢測(包括140個空氣樣本、23個水體樣本、40個土壤樣本、3個污泥或廢固樣本及41個個人環測樣本),以及250個苯之樣本檢測(包括108個空氣樣本、31個水體樣本、46個土壤樣本、4個污泥或廢固樣本及61個個人環測樣本)。文獻蒐集工作方面,共獲得163篇國內相關文獻及99篇國外相關文獻,並將文獻內容之量測資料彙整於報告中,文獻摘要資料摘如報告附錄。針對未來毒化物環境監測,擬定物質篩選原則,依據篩選原則將目前已公告之252種毒化物依環境監測需求性區別為四類,包括優先級、次優先級、不需進行及無法進行。河川環境量測結果顯示,依河川地理位置區分,以南部地區的河川例如東港溪、林邊溪及鹽水溪,底泥檢出的汞含量較高,上、中、下游河段檢出之汞含量差異並不明顯。比較枯水期及豐水期之差異,顯示豐水期在上、中、下游均有較高之趨勢。河川魚體樣本汞含量分析結果顯示,內臟組織之汞含量最高,魚肉組織次之,全魚分析結果最低,顯示體型愈大之生物體,相對其蓄積量愈高,部分河川魚體肌肉中汞濃度達1.1μg/g wet wt.(相當於1.1 ppm),已高於管制標準0.5ppm(行政院衛生署魚蝦類衛生標準甲基汞含量限值),顯示有必要釐清來源加以管制。以本計畫量測河川魚體之汞含量進行非致癌性風險評估結果危害指標(Hazard Index)小於1,尚不致造成人體健康的危害。河川底泥樣品中11種有機氯毒化物及其代謝物含量分析結果顯示,所有樣本之測值均未高於5μg/kg dry wt.,屬低濃度背景範圍,顯示有機氯毒化物及其代謝物在河川底泥中濃度已逐漸降低至偵測極限以下,由於有機氯農藥均已禁用,未來僅需進行定期持續之監測。以本計畫量測河川魚體之汞含量進行非致癌性風險評估結果,尚不致造成人體健康的危害。在運作工廠環境流布調查中,環氧氯丙烷之工廠製程區、槽區、廠區周界之空氣樣本分析結果顯示,長春高雄廠於投料期間測得之空氣中ECH含量為175.3 mg/Nm3,已超過短時間時量平均容許濃度15.2 mg/Nm3之10倍以上,顯見該廠有改善之空間,建議輔導進行減量改善,並將密閉式投料、加強製程設備元件之檢修與維護管理,納入未來評估改善範圍。苯運作工廠之製程區、槽區、廠區周界之空氣含量分析結果顯示,整體而言,大多低於勞委會所訂定之作業環境空氣中有害物質容許濃度標準16 mg/Nm3。惟多數運作工廠製程區之管線幫浦處,均測得空氣中苯濃度高於勞委會所訂定之作業環境空氣中有害物質容許濃度標準16 mg/Nm3,顯見管線幫浦有洩漏之情形,建議輔導改為雙軸封幫浦並加強檢修及維護管理。水體樣本分析結果顯示,廢水處理單元之廢水均含較高濃度之環氧氯丙烷或苯,而經處理後之共同處理廠進流水及最終放流水中含量則偏低。土壤樣品中環氧氯丙烷或苯含量測值均低於偵測極限,部分污泥餅中有環氧氯丙烷或苯之檢出。ECH及苯之個人環測量測結果均低於勞委會所訂定之作業環境空氣中有害物質容許濃度標準7.6 mg/Nm3(ECH)及16 mg/Nm3(苯)。運作工廠釋放量查核結果顯示,部分工廠有計算錯誤之情形發生,顯示未來應針對毒化物釋放量推估方式之合理性及正確性加以檢核。
    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 bank 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 various environmental media of the factory fields and nearby residents to explore the concentrations and distribution for those selected chemicals, including epichlorohydrin and benzene. The second was to conduct field studies and empirical measurements in various environmental media of the normal fields and nearby residents to explore the concentrations and distribution for those selected chemicals, including mercury, dieldrin, endrin, heptachlor, aldrin, lindane, hexachlorobenzene, DDE, DDD, DDT, tributyltin (TBT), and triphenyltin (TPhT). The last was to collect and analyse the 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, we investigated the environmental fate of the toxic chemical compounds in the factory field. We finished the sampling and analysis work of 497 samples, including ambient air samples, personal exposure air samples, water samples, soil samples, and other samples. About the environmental fate of the toxic chemical compounds in the normal field, we finished the sampling and analysis work of 437 samples. We got 163 reaches 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-92-U1J1-02-102
    Appears in Collections:[生物科技學系] 研究計畫
    [生科系] 田倩蓉

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