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108年化學物質環境流布背景調查及釋放量管理策略研析專案工作計畫
The project for background investigation of environmental distribution of chemical substances and analysis of management strategies for release of chemical substances in 2019

  • 發布單位:毒物及化學物質局
108年化學物質環境流布背景調查及釋放量管理策略研析專案工作計畫
專案計畫編號
經費年度2019
計畫經費 千元
專案日期2019-02-20 ~ 2019-12-31
專案主持人李俊璋
主辦單位毒物及化學物質局
承辦人高瑄伻
執行單位國立成功大學
專案分類環境監測及檢測
中文關鍵字化學物質,環境流布,河川,底泥,魚體,多介質傳輸,釋放量管理與指引
英文關鍵字Chemical Substances, Environmental distribution, River, Sediment, Fish, Multiple media transport, management and guidance for release of chemical substances
協同主持人陳秀玲
共同主持人田倩蓉
計畫聯絡人張偉翔
中文摘要

本計畫主要目的包括(1)優先調查化學物質於臺灣本島主要15條河川環境流布進行調查,並與歷年資料進行比對分析、(2)進行河川流域之特定範圍與特定化學物質項目,比對相關排放源並模擬研析流布途徑與(3) 研析國內化學物質釋放量管理制度及策略規劃建議。第一部分已完成南崁溪、頭前溪、客雅溪、中港溪、後龍溪、大安溪、烏溪、北港溪、朴子溪、鹽水溪、二仁溪、典寶溪、東港溪、蘭陽溪及新城溪等15條河川之底泥及魚體採樣及分析,檢測項目包括,六氯丁二烯、短鏈氯化石蠟、壬基酚、雙酚A、鄰苯二甲酸酯類、多溴二苯醚類及六溴聯苯類、多環芳香烴化合物、金屬及甲基汞等7類92種檢測物質,獲得15,180筆檢測數據。環境流布調查結果發現多項化學物質(如壬基酚、雙酚A、鄰苯二甲酸酯類及多溴二苯醚類)有降低趨勢,顯示列管後有助於降低河川環境中優先調查化學物質濃度。建議可繼續納入國際關注、國內使用量高、具環境及人體危害特性之化學物質進行長期調查。第二部分則分別以實地水體採樣及地下水擴散模擬進行鹽水溪流域之多介質與健康風險評估。以地下水及雙灌溉水源進行多介質與健康風險評估結果,顯示「農作物及魚肉食入吸收」為人體主要暴露途徑,致癌風險評估結果分別為95% UL=1.34×10-6及3.41×10-5,As為致癌風險之主要貢獻金屬;非致癌風險95% UL HI=0.008及1.26,Hg、Pb及As為非致癌風險之主要貢獻金屬。第三部分完成日本、美國、歐盟、加拿大、澳州等國釋放量管理制度彙整,據此建議修正申報門檻,以完整管制毒化物釋放於環境之情形。另建置毒化物風險篩選機制,篩選後建議36種優先納管物質及247種觀察物質名單,並提出分級分期納管規劃。亦完成中央與地方政府之釋放量合作管理模式建構,並提出「指定毒性化學物質及其釋放量計算指引-第二版」修正建議,包括釋放量估算之方法選用優先順序及可得資料參數之精準化,建議後續完備釋放量計算指引中估算方法之配套措施。最後以DEHP及BPA為例,完成釋放量、運作量及環境流布等資料庫整合應用,解析其高風險之標的行業別。

英文摘要

The major aims of this project were to (1) investigate distribution of concerned chemicals in fifteen Taiwanese rivers, (2) simulate distribution patterns of particular chemicals in a specific river, and (3) propose national management strategies for toxic chemicals release. First, sediment and fish samples were collected from fifteen Taiwanese rivers (i.e., Nankan River, Toucian River, Keya River, Jhonggang River, Houlong River, Da-an River, Wu River, Beigang River, Puzih River, Yanshuei River, Erren River, Dian Bao River, Donggang River, Lanyang River and Shincheng River). Concentrations of hexachloro-1,3-butadiene (HCBD), short-chain chlorinated paraffins (SCCPs), nonylphenol (NP), bisphenol A (BPA), phthalate esters (PAEs), polybrominated diphenyl ethers (PBDEs), hexabrominated biphenyls (HBBs), polycyclic aromatic hydrocarbons (PAHs), metal and methylmercury were determined in collected samples and 15,180 analyzed data were obtained. The concentrations of most analyzed chemicals (e.g. NP, BPA and PAEs ) in sediments is decreased with time. The results indicate that the control strategies of the usage of those chemicals are helpful to reduce those release into the environment. It will be continuely include the candidate chemicals with global concerns, high production volume, environmental hazards and human health effects into the background investigation of environmental distribution of chemical substances. Second, assessments of the multiple media transport and health risk of metals in the Yanshuei river basin was performed using measured metal concentrations in water and simulated metal levels in different environmental media by the computing models. As to the results of health risk assessment based on wastewater pollution simulations in different water irrigation scenarios, the main exposure route was consumption of fish and crops. The cancer risk of 95% UL was 1.34×10-6 and 3.41×10-5 for consumption of fish and crops, respectively. As is the main contributor. Non-cancer risk of 95% UL HI was 0.008 and 1.26 with Hg, Pb and As as the main contributors. Finally, the management systems of Pollutant Release and Transfer Register (PRTR) in Japan, United States, European Union, Canada, and Australia were collected and assessed. The strict filing regulation in release of chemicals was proposed to completely control the release of toxic chemicals into the environment. The priority list of 36 chemicals and secondary list of 247 chamicals have been selected using the risk-based screening model. The stepwised management of these candidate chemicals and the cooperative management between government and local agencies were also proposed. The "Guidelines for the Designation of Toxic Chemical Substances and Estimation of Releases - Second Edition" was amed for prioriting estimating the release of toxic chemicals and suggesting the accuracy of the calculated parameters. Taking DEHP and BPA as examples, the target high-risk industries were explored using the merging data of three major databases for toxic chemicals, including release data, operation data, and environmental monitoring data.

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  • 點閱次數:355
  • 資料發布日期:110-04-20
  • 資料更新日期:110-04-22
  • 資料檢視日期:111-08-12
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