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108至109年水庫及主要入庫溪流水質監測計畫

 專案計畫編號
 經費年度 108年度
 計畫經費 39,224千元
 預算科目 水環境建設-水與發展
 專案開始日期 2019/04/02
 專案結束日期 2021/06/30
 專案主持人 許姝羚
 主辦單位 監資處
 承辦人 程凱麟
 執行單位 安美謙德環保股份有限公司
 專案分類 環境監測及檢測
 中文關鍵字 水質、水庫、卡爾森指數、重點水庫、主要入庫溪流
 英文關鍵字 Water quality, Reservoir, Carlson trophic state index , Major reservoir,Major River
 協同主持人
 共同主持人
 計畫聯絡人 許姝羚
 計畫聯絡電話 --
 計畫聯絡信箱 --
 專案審查者 程凱麟
 專案審查時間 2021/09/24
 專案核對者 林雨潔
 專案核對時間 1900/01/01

108至109年水庫及主要入庫溪流水質監測計畫

 中文摘要 本計畫主要針對臺灣本島及離島之重點水庫、一般水庫及主要入庫溪流水質水量監測,並彙集調查結果資料,掌握水體水質變化,提供環保單位污染整治參考。主要入庫溪流水質調查,於 21 座水庫執行 23 個測站之入庫溪流監測結果,監測期間各測站均有部分測值不符合所屬陸域地面水體水質標準情形,整體以大腸桿菌群超過標準占最高比例 (56 %),生化需氧量比例次之 (44 %)。以河川污染等級評估,大致均呈現未(稍)受污染等級,水質變化不大,狀況良好。另松林橋屬濁水溪支流因地質因素,水中懸浮固體長期偏高,屬輕度至中度污染等級。白水溪橋及蓬萊橋懸浮固體易受降雨影響偏高,屬未(稍)受至輕度污染等級。鏡面二號橋及新尖大橋大致屬未(稍)受至中度污染等級。港西抽水站溶氧較低,有機性污染物較高,均屬中度污染等級。 21座重點水庫水質監測結果,各水庫均有部分測點測值不符所屬甲類及乙類陸域地面水體水質標準情形,整體以溶氧量超過標準比例占最高 (20 %),其餘比例較高為pH值 (19 %) 及總磷 (16 %)。整體而言,監測期間日月潭水庫介於貧養至普養 (47 %、53 %)。新山水庫、德基水庫、霧社水庫及湖山水庫介於貧養至優養,以普養占較高比例 (67 % ~ 87 %)。石門水庫、寶山水庫、永和山水庫、鯉魚潭水庫、蘭潭水庫、仁義潭水庫、曾文水庫、烏山頭水庫、南化水庫、澄清湖水庫、阿公店水庫及牡丹水庫介於普養至優養,以普養占較高比例 (50 % ~ 97 %)。白河水庫以優養比例 97 % 最高。明德水庫、鏡面水庫及鳳山水庫均屬優養等級 (100 %)。與歷年監測結果比較,湖山水庫卡爾森指數有降低趨勢。明德水庫、永和山水庫、鯉魚潭水庫、德基水庫、日月潭水庫、霧社水庫、蘭潭水庫、仁義潭水庫、曾文水庫、白河水庫、鏡面水庫、南化水庫卡爾森指數有略升趨勢。 30座一般水庫水質監測結果,各水庫均有部分測點測值不符合所屬甲類及乙類陸域地面水體水質標準情形,以pH 值超過標準比例占最高 (41 %),總磷占次高比例 (28 %)。監測期間本島一般水庫西勢水庫、寶二水庫及頭社水庫水質介於普養至優養,西勢水庫與寶二水庫以普養等級占較高比例 (60 %、56 %),頭社水庫則以優養占較高比例 (60 %),大埔水庫則均屬優養等級 (100 %)。離島水庫金門縣、連江縣及澎湖縣各水庫因屬小型水庫卡爾森優養等級普遍較差。金門縣水庫蘭湖水質介於普養至優養等級(10 %、90 %),其餘10座水庫均屬優養等級 (100 %)。連江縣水庫后沃介於貧養至優養,以優養占較高比例 (90 %)。津沙及東湧均屬優養等級 (100 %),其餘水庫介於普養至優養等級,以優養等級占較高比例 (60 % ~ 90 %)。澎湖縣西安水庫水質較佳,介於普養至優養等級(80 %、20 %),其餘各水庫水質均呈優養等級 (100 %)。與歷年監測結果比較大埔水庫、頭社水庫及金門縣儲水沃下壩卡爾森指數有變差趨勢。金門縣擎天、蘭湖、連江縣東湧及澎湖縣西安水庫卡爾森指數有變好趨勢。
 中文關鍵字 水質、水庫、卡爾森指數、重點水庫、主要入庫溪流

108至109年水庫及主要入庫溪流水質監測計畫

 類型  檔名  說明
 期末報告  108A168(期末報告).pdf(5.7MB)  
最新版公開日期: 2021/10/31 上午 12:00:00

The Water Quality Monitoring of Reservoirs and Major Rivers(2019-2020)

  摘要 This project mainly focuses on monitoring the water quality and quantity of major reservoirs, the other reservoirs, and major Rivers on Taiwan’s main and outlying islands, and collects the survey data to hold water-quality trends and provide environmental protection department of pollution control reference. A total of 23 monitoring sites on major rivers flowing into 21 reservoirs were investigated, some of the measured values at each site did not meet Surface Water Classification and Water Quality Standards during the monitoring period. Among them, the Coliform group accounted for the highest proportion (56%), followed by BOD5 (44%). Most of the levels of The River Pollution Index (RPI) were non/mildly-polluted, indicating good water qualities. In addition, Songlin Bridge was lightly- to moderately-polluted and Baishuixi Bridge was non/mildly- to lightly-polluted due to the high SS caused by geological factors and rainfall, respectively. The water quality of Mirror No. 2 Bridge and Xinjian Bridge was occasionally slightly poor resulted in non/mildly-polluted levels. The Gangxi pumping station had low dissolved oxygen and high organic pollutants, which is moderately-polluted. Regarding 30 major reservoirs, each reservoir had monitoring sites that do not meet Category A and Category B of Surface Water Classification and Water Quality Standards during the monitoring period. The dissolved oxygen had the highest proportion exceeding the standard (20%), followed by pH (19%) and total phosphorus (16%). During the monitoring period, the Sun Moon Lake Reservoir had better water quality, with the level of eutrophication ranging from oligotrophic to mesotrophic (47%, 53%). The Xinshan Reservoir, Deji Reservoir, Wushe Reservoir, and Hushan Reservoir ranged from oligotrophic to eutrophic, with a high proportion of mesotrophic (67% ~ 87%). The eutrophication level of Shimen Reservoir, Baoshan Reservoir, Yongheshan Reservoir, Liyutan Reservoir, Lantan Reservoir, Renyitan Reservoir, Zengwen Reservoir, Wushantou Reservoir, Nanhua Reservoir, Chengqing Lake Reservoir, Agongdian Reservoir,and Mudan Reservoir is between mesotrophic to eutrophic, with a higher proportion of mesotrophic (50% ~ 97%). The Baihe Reservoir had the highest rate of eutrophic at 97%. Mingde Reservoir, Jingmian Reservoir, and Fengshan Reservoir were all eutrophic (100%), indicating poor water quality. Compared with previous data, the water quality of Hushan Reservoir has slightly improved. The water quality of Mingde Reservoir, Yongheshan Reservoir, Liyutan Reservoir, Deji Reservoir, Sun Moon Lake Reservoir, Wushe Reservoir, Lantan Reservoir, Riyuetan Reservoir, Zengwen Reservoir, Baihe Reservoir, Jingmian Reservoir had deteriorated slightly. In 21 general reservoirs, each reservoir had some monitoring sites that do not meet Category A and Category B of Surface Water Classification and Water Quality Standards. The proportion of pH exceeding the standard is the highest (41%), followed by total phosphorus (28%). Among the general reservoirs on the main island of Taiwan, the eutrophication levels of Xishi Reservoir, Baoer, and Toushe Reservoir ranged from mesotrophic to eutrophic. The Xishi and Baoer reservoirs had relatively high proportions (60%, 56%) of mesotrophic. Toushe Reservoir had a higher proportion (60%) of eutrophic. The Dapu Reservoir all belong to eutrophic (100%). Reservoirs on outlying islands such as Kinmen County, Lianjiang County, and Penghu County had generally poor water quality due to the low reservoir capacity. The eutrophication levels of Lake Lanhu in Jinmen County ranged from mesotrophic to eutrophic (10%, 90%), and the other 10 reservoirs were all eutrophic (100%). The eutrophication levels of Houwo Reservoir in Lianjiang County ranged from oligotrophic to eutrophic, with eutrophic accounting for a higher proportion (90%). Jinsha and Tung Chung all belong to eutrophic (100%), and the remaining reservoirs ranged from mesotrophic to eutrophic, with eutrophic accounting for a higher proportion (60%~100%). The water quality of Xi'an Reservoir in Penghu County was better, the eutrophication levels ranged from mesotrophic to eutrophic (80%, 20%), and the remaining reservoirs were all eutrophic (100%). Compared with previous data, the water quality of Dapu Reservoir, Toushe Reservoir and Jinmen County Water Storage Woxia dam had deteriorated slightly.The water quality of Kinmen County Qingtian, Lan Lake, Lianjiang County Dongyong, and Penghu County Hsi-An Reservoir has slightly improved.
  英文關鍵字 Water quality, Reservoir, Carlson trophic state index , Major reservoir,Major River

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