EPA-103-J105-02-101

103

3,960 千元

2014/02/19

2014/12/31

賴映方

環管處

高俊璿

中環科技事業股份有限公司

環境監測及檢測

飲用水水質標準、總三鹵甲烷、重金屬

Drinking Water Quality Standards, Total Trihalomethane, Heavy Metals

楊靜子

07-8152248#847

chingz.yang@gmail.com

一、抽驗並調查國內22個直轄市、縣市行政轄區，362處自來水直接供水系統及38處簡易自來水供水系統水質中之列管項目包括重金屬(砷、鉛、硒、鉻、鎘、鋇、銻、鎳、汞、銀、銦、鉬、鋁)、影響健康物質(氰鹽)、消毒副產物(總三鹵甲烷、溴酸鹽、亞氯酸鹽、鹵乙酸類)、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、二氯甲烷、1,2-二氯苯、二甲苯、順1,2-二氯乙烯、反1,2-二氯乙烯、四氯乙烯、甲苯)、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)、持久性有機污染物(戴奧辛)等6類47項物質。 二、抽驗並調查國內22個直轄市、縣市行政轄區，362處自來水直接供水系統及38處簡易自來水供水系統水質中之優先關注項目包括重金屬(六價鉻、鎵、鉈)、消毒副產物項目(二氯乙腈、二溴乙腈、水合氯醛)、揮發性有機物(甲醛、1,1-二氯乙烷、1,2-二氯丙烷、苯乙烯、一氯苯、乙苯)、環境荷爾蒙(壬基酚、雙酚A、鄰苯二甲酸二甲酯(DMP)、鄰苯二甲酸二乙酯(DEP)、鄰苯二甲酸二丁酯(DBP)、鄰苯二甲酸丁苯酯(BBP)、鄰苯二甲酸二辛酯(DOP)、鄰苯二甲酸二(乙基己基)酯(DEHP))、微生物(糞便性大腸桿菌群、大腸桿菌)及持久性有機污染物(戴奧辛類多氯聯苯)等6類23項，共計70項水質項目之現況背景資料。 三、將本計畫抽驗結果與以往歷年飲用水水質抽驗情形予以比較分析。

飲用水水質標準、總三鹵甲烷、重金屬

103年度飲用水水質標準中較難檢驗項目抽驗計畫(公開版).pdf

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103年度飲用水水質標準中較難檢驗項目抽驗計畫(公開版)

2015/2/1 上午 12:00:00

The purpose of this project was to examine the water quality of the pre-chosen 362 drinking water systems and 38 simple tap-water systems of the 22 municipal counties or cities. The test counts of the regulated and non-regulated analytes for drinking water systems were 47 and 23 respectively, which accounted for a total of 70 analytes. 　　The regulated analytes being tested included 13 items of heavy metals (arsenic, lead, selenium, chromium, cadmium, barium, antimony, nickel, mercury, silver, Indium, molybdenum and aluminium), 1 item of unhealthy substance (cyanide), 4 items of disinfection by-products (total trihalomethanes (TTHMs), bromate, chlorite and haloacetic acids (HAA5)), 15 items of volatile organics (trichoroethylene, carbon tetrachloride, 1,1,1-trichloroethane, 1,2-dichloroethane, vinyl chloride, benzene, 1,4-dichlorobenzene, 1,1-dichloroethene, dichloromethane, 1,2-dichlorobenzene, xylenes, cis- and trans- 1,2-dichloroethene, tetrachloroethene and toluene), 13 items of pesticides (endosulfan, lindane, butachlor, 2,4-D, paraquat, methomyl, carbofuran, Isoprocarb, methamidophos, diazinon, parathion, EPN, and monocrotophos) and 1 items of persistent volatile organics (dioxins), which accounted for a total of 38 analytes. 　　The non-regulated analytes being tested included 3 items of heavy metals (hexavalent chromium, gallium, thallium), 3 item of disinfection by-products (Dichloroacetonitrile, Dibromoacetonitrile and Chloral Hydrate), 6 items of volatile organics (1,1-dichloroethane, 1,2-dichloro propane, styrene, chlorobenzene, ethylbenzene and formaldehyde), 8 items of endocrine disrupting chemicals (nonyl phenols, bisphenol A, dimethyl phthalate (DMP), Diethyl Phthalate (DEP), Di-n-butyl phthalate (DBP), Benzyl butyl phthalate (BBP), Di-n-octyl Phthalat (DNOP), bis(2-ethylhexyl) phthalate (DEHP)), 2 items of microorganism (fecal coliforms, E. coli) and 1 item of persistent volatile organics (dioxin-like Polychlorinated Biphenyls (PCBs)), which accounted for a total of 23 analytes. 　　The total test counts of the regulated analytes and non-regulated analytes for tap-water systems were 6163 and 675,and the total test counts of the regulated and non-regulated analytes for simple tap-water systems were 473 and 29, respectively. The analytical results indicated that carbon tetrachloride, 1,1,1-trichloroethane, 1,2-dichloroethane, vinyl chloride, benzene, 1,4-dichlorobenzene, 1,2-dichlorobenzene, xylenes, cis- and trans- 1,2-dichloroethene, endosulfan, lindane, butachlor, 2,4-D, methomyl, carbofuran, Isoprocarb, methamidophos, diazinon, parathion, EPN, monocrotophos and chlorite in tap-water systems, and bromate, cadmium, silver and mercury in simple tap-water systems were not detected or less than the quantitation detection limits. 　　About the passing rate of the tested locations, the examines all met the drinking water criteria except the sample of TTW-T30 in Taitung county (Green Island water treatment plant), and the passing rate was 97.8%. About the passing rate of all analytes,the examines all met the drinking water criteria except TTHMs, and the passing rate was 99.8%. Besides, all non-regulated analytes were less than the method detection limits or quantitation detection limits except Gallium, Dichloroacetonitrile, Dibromoacetonitrile, Chloral Hydrate and DEHP. 　　The tested locations with analysis concentration exceeded or approached the drinking water regulatory limits in the first time examines, aluminum concentration exceeded 0.2 mg/L and those with the highest analytes tested results were followed up and re-tested in September and October. The results indicated that the analytes re-tested met the drinking water criteria except TTHMs of TTW-T30 in Taitung county (Green Island water treatment plant) and aluminum of TTW-M02 in Tainan city (Wusanto water treatment plant) still exceeded the alarm value (70% of the drinking water criteria).

Drinking Water Quality Standards, Total Trihalomethane, Heavy Metals