107至110年環境水體（北區）河川海域地下水質監測計畫
| 中文摘要 | 本計畫主要針對北區10縣市各類水體進行水質監測，掌握各水體水質時間變化趨勢，並進行各水體污染評估分析，以提供環保單位污染防治決策之參考。環保署委辦環境水質監測計畫中海域及海灘等兩類水體，自108年起由海洋委員會海洋保育署統籌辦理，本計畫停止監測。 本計畫河川水質計有36條河川主支流，134個監測站，於每月監測1次，監測結果顯示，淡水河流域在上、下游有水質狀況差異明顯之情形，桃園、新竹地區河川則因多為工業廢水、民生污水之承受水體，水質狀況普遍不佳，雙溪及東部宜蘭、花蓮地區河川則水質狀況普遍較好；整體而言，107至110年河川水質屬未（稍）受污染等級佔最高比例為51%，中度污染等級次之佔33%，水質狀況與往年差異不大。海域水質計有8個沿海區域，40個監測站，於每季監測1次，107年各縣市沿海監測結果除馬祖沿海南竿鄉北部沿海、馬祖海峽及北竿東部沿海等3個測點曾於107年第二季之銅測項有未符合海洋環境品質標準之情形外，其餘皆符合海洋環境品質標準；河口測站因受河川匯流影響，鹽度普遍較低及無機鹽類濃度較高，整體而言，非河口測站水質較河口測站為佳，東半部海域較西半部海域為佳，本島海域較外島海域為佳。海灘水質共計有3處，9個監測站，於每年夏季6至9月間執行，每月監測1次；107年執行期間之監測結果顯示，新北市福隆、新金山及宜蘭縣外澳等各處海灘水質，除福隆偶有未符合甲類海域海洋環境品質標準及海灘水質分級偶為不宜親水活動，以及外澳海灘水質分級偶為普通外，其餘均符合甲類海域海洋環境品質標準，海灘水質分級多屬優良等級，水質狀況尚屬良好。地下水水質計有8縣市，140個區域性監測井，地下水水質超過地下水第二類監測標準之項目主要集中於氨氮、鐵及錳；各監測井之水質分類，以Stiff水質形狀圖方式評估，屬Ca2+及HCO3-凸出型佔最高比例約為67%，Piper圖解則屬I區佔最高比例約為70%，與往年之評析結果大致呈現一致趨勢。 | ||
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| 中文關鍵字 | 水質監測、水質標準、方法偵測極限 | ||
基本資訊
| 專案計畫編號 | EPA-107-L101-02-A110-1 | 經費年度 | 107 | 計畫經費 | 82000 千元 |
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| 專案開始日期 | 2018/04/01 | 專案結束日期 | 2021/04/30 | 專案主持人 | 余建中 |
| 主辦單位 | 監資處 | 承辦人 | 程凱麟 | 執行單位 | 精湛檢驗科技股份有限公司 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | EPA107L10102A1101(107至110年度)-全a.pdf | 21MB | 107至110年環境水體(北區)河川海域地下水質監測計畫期末報告 |
The Enviroment Monitoring of the Water Quality in the Northern Area of Taiwan from 2018 to 2021
| 英文摘要 | This project carries on water quality monitoring to four kinds of water bodies of ten counties and cities in the northern Taiwan. The changes of water quality to the time and pollution assessment for those water bodies could be provided to the relevant environmental agencies for making a pollution control decision. During the monitoring period, two types of water bodies in the plan, including sea areas and beaches, have been coordinated and managed by the OCA (Ocean Conservation Administration) since 2019, and the monitoring has ceased. For river quality, the 134 sampling sites covering 36 rivers (including main streams and tributaries) were monitored monthly. The monitored results in water quality of rivers and creeks from 2018 to 2021 showed that the water quality in Yilan and Hualien cities was good; a critical difference between upstream and downstream water quality was shown in Danshuei-river; the downstream water quality got a high pollution concentration of organic matter; in Taoyuan and Hsinchu cities, Touchien-stream got the best water quality, the water quality in Nankan-stream, Laochieh-stream, Xinfeng-stream and Keya-stream was worse. As a whole, the highest percentage of the water quality was 51%, it belonged to unpolluted rivers. The secondary percentage of the water quality was 33%, it belonged to intermediately polluted rivers. Overall, water quality in 3 years was nondifference between the recent years. For ocean monitoring, the 40 sampling sites covering 8 coastal areas were monitored quarterly. Since the estuary areas were affected by the river during high tide, the salinity were low, and the concentrations of the inorganic salts were high. The monitored results appeared that Copper was ever found exceeding their relative marine water quality standards in the marine regions. The water quality in eastern sea area was better than in western, Taiwan coastal waters was better than off-shore island waters and estuary. The 9 sampling sites covering 3 beaches were monitored monthly from June to September. 3 beaches except the Fulong beach, others were not ever found exceeding the water quality standard because of the influence of river and rainfall, the water quality of 3 beaches was good. The 140 ground water sampling sites for 8 cities and counties were monitored quarterly. Ground water monitoring results showed that as usual, Ammonia-Nitrogen, Manganese and Iron were the major items against the Ground Water Monitoring Standard in second category. To analyze graphically each monitoring item by Stiff-plotting and Piper-plotting showed a trend as same as last sevesal years, there was no significant difference compared to the past. The highest percentage of Stiff-plotting and Piper-plotting was about 67% and 70%, it belonged to HCO3－- Ca2＋ type and area of I. | ||
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| 英文關鍵字 | Water Quality Monitoring, Water Quality Standards, Method Detection Limit | ||