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Title 101年度飲用水水質標準中較難檢驗項目抽驗計畫
Abstract 本計畫主要針對全國22個直轄市及縣市行政轄區364個自來水供水系統及38個簡易自來水檢測點進行飲用水水質中較難檢驗項目之抽驗，其分析項目包括重金屬(砷、鉛、硒、鉻、鎘、鋇、銻、鎳、汞、銀)、總三鹵甲烷、溴酸鹽、揮發性有機物(三氯乙烯、四氯化碳、1,1,1-三氯乙烷、1,2-二氯乙烷、氯乙烯、苯、對-二氯苯、1,1-二氯乙烯，402處至少執行216處)及農藥(安殺番、靈丹、丁基拉草、2,4-地、巴拉刈、納乃得、加保扶、滅必蝨、達馬松、大利松、巴拉松、一品松、亞素靈，402處至少執行120處)等，共12～33項水質項目，並於22個行政轄區內各挑選1處淨水場執行氰鹽、銦、鉬、戴奧辛及考慮優先列管項目(六價鉻、鎵、鉈、鋁、釩、鹵乙酸、二氯甲烷、1,1-二氯乙烷、1,2-二氯丙烷、1,2-二氯苯、二甲苯、苯乙烯、順1,2-二氯乙烯、反1,2-二氯乙烯、四氯乙烯、一氯苯、甲苯、乙苯、壬基酚、雙酚A、鄰苯二甲酸二(乙基己基)酯)、微囊藻毒素-LR)。101年度共完成364處自來水供水系統及38個簡易自來水檢測點之檢測工作，其中自來水供水系統已完成法規列管項目7737項次及優先考慮列管項目601項次，簡易自來水則已完成法規列管項目456項次。由101年度監測結果發現，自來水供水系統之抽驗點中三氯乙烯、四氯化碳、1,1,1-三氯乙烷、1,2-二氯乙烷、氯乙烯、苯、對-二氯苯、1,1-二氯乙烯、安殺番、靈丹、丁基拉草、2,4-地、巴拉刈、納乃得、加保扶、滅必蝨、達馬松、大利松、巴拉松、一品松、亞素靈等項，以及簡易自來水之抽驗點中溴酸鹽、汞、三溴甲烷等項之檢測結果皆小於偵測極限或定量極限。本年度水質抽驗合格率，以抽驗點而言，除台中市TTW-G09(谷關淨水場)及南投縣TTW-H13(信義淨水場)測點之水質合格率為93.8%及95.0%外，其餘各抽驗點之水質合格率皆為100.0%；而就測項而言，除溴酸鹽及總三鹵甲烷之檢測點合格率皆為99.7%外，其餘各檢測項目之檢測點合格率皆為100.0%。針對優先考慮列管項目，除鋁測項外，其餘測項之檢測結果均小於偵測極限或定量極限值。針對101年第1階段抽驗結果超過飲用水水質標準及各測項最高值出現測點，於101年10月進行複測追蹤，由監測結果發現，第1階段超標測項均已符合飲用水水質標準。
EngTitle A Survey of Drinking Water for Certain Specific Analytes in the Water Quality Standards
EngAbstract The purpose of this project was to examine the water quality of the pre-chosen 364 drinking water systems and 38 simple tap-water systems of the 22 municipal counties (or cities). The analytes being tested included heavy metals (arsenic, lead, selenium, chromium, cadmium, barium, antimony, nickel, mercury and silver), total trihalomethanes (TTHMs), bromate, volatile organics (trichoroethylene, carbon tetrachloride, 1,1,1-trichloroethane, 1,2-dichloroethane, vinyl chloride, benzene, 1,4-dichlorobenzene, and 1,1-dichloroethene; a minimum of 216 to be analyzed of the 402 systems) and pesticides (endosulfan, lindane, butachlor, 2,4-D, paraquat, methomyl, carbofuran, MIPC, methamidophos, diazinon, parathion, EPN, and monocrotophos; a minimum of 120 to be analyzed of the 402 systems ), which accounted for a total of 12 to 33 analytes. In addition, one waterworks is to be chosen from each of the 22 municipal districts for the analyses of cyanide, indium, molybdenum, dioxins and other analytes on top of the list to be regulated (hexavalent chromium, gallium, thallium, aluminium, vanadium, haloacetic acids, dichloromethane, 1,1-dichloroethane, 1,2-dichloropropane, 1,2-dichlorobenzene, xylenes, styrene, cis- and trans- 1,2-dichloroethene, tetrachloroethene, chlorobenzene, toluene, ethylbenzene, nonyl phenols, bisphenol A, bis(2-ethylhexyl) phthalate and microcystin-LR).The water quality examinations were completed for 364 drinking water systems and 38 simple tap water systems in the year of 2012. The total test counts of the regulated analytes and potentially regulated analytes for drinking water systems were 7737 and 601, respectively, while the total test counts of the regulated analytes for simple tap-water systems were 456. The analytical results from 2012 indicated that trichloroethene, carbon tetrachloride, 1,1,1-trichloroethane, 1,2-dichloroethane, vinyl chloride, benzene, 1,4-dichlorobenzene, 1,1-dichloroethene, endosulfan, lindane, butachlor, 2,4-D, paraquat, methomyl, carbofuran, MIPC, methamidophos, diazinon, parathion, EPN, and monocrotophos in drinking water supply systems, and bromate, mercury and bromoform in simple tap-water systems were not detected or less than the quantitation detection limits of the respective analytical methods. Water examined for all tested locations met the required drinking water criteria except samples TTW-G09 in Tai-Chung city (Ku-Kuan water purification plant) and TTW-H13 in Nan-Tou county (Hsin-Yi water purification plant), which had a passing rate of 93.8% and 95.0%, respectively. All analytes tested met the required drinking water criteria except bromate and TTHMs, which had a passing rate of 99.7%. Besides aluminium, all other potentially regulated analytes were less than the method detection limits or quantitation detection limits.The test locations with analytes whose concentration exceeded the drinking water regulatory limits in the first stage of 2012 and those with the highest historical results were followed up and re-tested in October this year. The results indicated that all analytes re-tested met the drinking water quality standards.
ProjectYear 101
SponsorOrg 毒管處
ExecutingOrg 中環科技事業股份有限公司
PublicFullVersionURL http://epq.epa.gov.tw/project/FileDownload.aspx?fid=41312