行政院環境保護署 環保專案成果報告查詢系統

111

7,610 千元

科技發展-環境科學及技術之研究

2022/03/18

2022/11/30

黃良銘教授

水保處

歐真妤

國立成功大學

科技計畫

多溴二苯醚類、N-亞硝基吡咯烷、全氟己烷磺酸

polybrominated diphenyl ethers (PBDEs), N-nitrosopyrrolidine (NPYR), perfluorohexanesulfonic acid (PFHxS)

王根樹教授；林財富教授；陳𦹅如副教授

吳怡儒

06-2757575#65837

ccdjessica@gmail.com

本計畫辦理飲用水列管物質篩選作業，優先評估6項多溴二苯醚類，於我國6座淨水場進行監測，三次採樣均未檢出，顯示於我國暫無顯著風險。本年度彙整蒐集清單毒理資料及本土淨水廠檢測資料，經估後將N-亞硝基吡咯烷及全氟己烷磺酸納入觀察清單。此外原觀察清單中之甲醛及鎵，經評估於我國飲用水中暫無顯著危害，改列蒐集清單以有效運用檢測能量。本計畫抽驗飲用水中26項未列管新興污染物共3340處次，結果顯示除鍺、硼、Geosmin、全氟化合物有少數樣品有較高檢出濃度，須持續監測之外，其餘污染物均低於定量極限或偵測極限，或檢出濃度極低。此外亦評估6種國際常用微生物指標於我國20處次配水樣品的檢出情況，僅一配水點可能因於餘氯低，檢出大腸桿菌群，顯示維持自由有效餘氯仍是重要減少配水中微生物的重要措施，此外建議建議參考國際管制趨勢，以管制大腸桿菌取代現有專一性較差之大腸桿菌群。本計畫亦彙整近十年簡易自來水場飲用水水質，結果顯示不合格或高於國際管制值最小值的項目主要為微生物指標，建議增設消毒處理程序。針對極端氣候因應方式本計畫彙整國際上以飲用水為目的之水回收再利用相關作法與案例，技術及行政管理及公眾溝通在水回收利用上均扮演關鍵角色。

多溴二苯醚類、N-亞硝基吡咯烷、全氟己烷磺酸

111 期末報告 定稿.pdf

6MB

期末報告定稿

2023/2/26 上午 12:00:00

This project implemented contaminants screening process of drinking water quality regulation. Six unregulated polybrominated diphenyl ethers (PBDEs) were selected for evaluation. Their concentration was monitored in six representative drinking water treatment plants, and their health risk in drinking water system in Taiwan were evaluated. Results indicated that there is no significant risk of these 6 compounds on drinking water in Taiwan. This project also collected the toxicity information and monitoring histories of unregulated contaminants in Preliminary Contaminant Candidate List (PCCL) to evaluate if the concern level of some chemicals should be increased to Contaminant Candidate List (CCL). After evaluation, concern level of NPYR and PFHxS were increased from PCCL to CCL. In addition, this project inspected 26 unregulated compounds of emerging concern in drinking water and got 3340 data in total. There were 14 compounds with monitoring results all below detection or quantification limitation. The other compounds with detection values were at very low concentration level. There were only few samples with higher concentration on germanium, boron, Geosmin, and per- and polyfluorinated chemicals (PFCs). It is suggested to monitor them continuously. Besides, this project evaluated 6 different microbial indicators at 20 sampling points in water distribution system. Only one sample detected total coliform, which may result from low free residual chlorine. Results indicated that maintain free residual chlorine is important stretagy to reduce microorganism in water distribution system. In addition, it is suggested to regulate E. coli rather than total coliform, which has less specifity. Drinking water quality data of small drinking water system in ten years were collected. High risk was found with microbial incitors. Therefore, disinfection system was suggested to implement. Regarding to the drinking water management regulation and respondences to extreme climate, this project reviewed potable water reuse cases apply in other countries. Public communication is one of key factor of successful implement except for technologies and management aspect.

polybrominated diphenyl ethers (PBDEs), N-nitrosopyrrolidine (NPYR), perfluorohexanesulfonic acid (PFHxS)