環保專案成果報告查詢系統

專案計畫編號	EPA-94-L102-02-202
經費年度	096
計畫經費	19,800 千元
專案開始日期	2007/01/01
專案結束日期	2007/12/31
專案主持人	吳坤立
主辦單位	監資處
承辦人	顏瑞錫
執行單位	清華科技檢驗股份有限公司
專案分類	環境資訊系統
中文關鍵字	水質監測,水質標準、方法偵測極限
英文關鍵字	Water Quality Monitoring, Water Quality Standards, Method Detection Limit
協同主持人
共同主持人
計畫聯絡人	許姝羚
計畫聯絡電話	03-5545022
計畫聯絡信箱	tsinghua@seed.net.tw

中文摘要	本計畫主要針對中區六縣市各類水體水質監測，掌握各水體水質隨時間的變化趨勢，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。河川水質計有18條河川主支流，75個監測站，每月監測一次。今年度監測結果顯示，以西湖溪流域水質狀況最佳，而鹿港溪及北港溪流域屬嚴重污染等級佔較高比例。 6月時梅雨鋒面過境，全台降下豪大雨，降雨延時沖刷河道，造成部分河川水質變動，如大安溪流域、大甲溪流域、烏溪流域及新虎尾溪流域等，水中懸浮固體濃度偏高，水質狀況不佳。整體而言，今年度中部地區河川水水質屬未(稍)受污染等級佔最高比例為39.8%，中度污染等級佔次高比例36.7%，水質狀況較近 2 年略有轉好情形。海域水質方面以海域海洋環境品質標準與監測結果進行比較，新竹香山沿海、台中港沿海及彰濱沿海屬乙類海域環境水體，雲林沿海海域屬於甲類海域環境水體，今年度監測結果均符合所屬分類海域海洋環境品質標準。第三季監測期間因颱風過境降雨量增加，水溫、鹽度及部分重金屬測值與歷年略有差異，第四季監測時水質測值已回復至歷史監測範圍。近岸休憩海域計有3個測站，由今年度9次監測結果顯示，以通霄海水浴場之水質狀況較佳。第二次採樣時，因鋒面過境受降雨及河川匯流之影響，各海水浴場水質監測結果，略有轉差情形。水庫水質計有8座水庫，每月監測一次。由今年度監測結果顯示，日月潭水庫各監測項目均符合甲類陸域地面水體水質標準。而各水庫優養化程度以日月潭水質最佳，全年屬貧養等級比例佔75.0%，另以大埔水庫水質最差，全年屬優養等級比例佔91.7%。鯉魚潭水庫、德基水庫及永和山水庫之水質變動較大，水質屬貧養至優養等級，其他水庫如頭社水庫、明德水庫則屬普養至優養等級。地下水水質監測計有 6 縣市，93個監測井，由今年度監測結果顯示，超過地下水第二類監測基準之項目與歷年結果相近，主要以氨氮、鐵及錳為主。而以彰化縣及雲林縣境內監測井之氨氮測值，較其他縣市之測值為高，應是該區域之地質特性因素所致。各監測井之水質，以Stiff水質形狀圖方式評估，屬Ca2＋及HCO3－+CO32－凸出型佔最高比例為60.0%，Piper圖解則屬I區佔最高比例為56.2%，與近 2 年評析結果大致呈現一致趨勢。
中文關鍵字	水質監測,水質標準、方法偵測極限

中文摘要

本計畫主要針對中區六縣市各類水體水質監測，掌握各水體水質隨時間的變化趨勢，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。河川水質計有18條河川主支流，75個監測站，每月監測一次。今年度監測結果顯示，以西湖溪流域水質狀況最佳，而鹿港溪及北港溪流域屬嚴重污染等級佔較高比例。 6月時梅雨鋒面過境，全台降下豪大雨，降雨延時沖刷河道，造成部分河川水質變動，如大安溪流域、大甲溪流域、烏溪流域及新虎尾溪流域等，水中懸浮固體濃度偏高，水質狀況不佳。整體而言，今年度中部地區河川水水質屬未(稍)受污染等級佔最高比例為39.8%，中度污染等級佔次高比例36.7%，水質狀況較近 2 年略有轉好情形。海域水質方面以海域海洋環境品質標準與監測結果進行比較，新竹香山沿海、台中港沿海及彰濱沿海屬乙類海域環境水體，雲林沿海海域屬於甲類海域環境水體，今年度監測結果均符合所屬分類海域海洋環境品質標準。第三季監測期間因颱風過境降雨量增加，水溫、鹽度及部分重金屬測值與歷年略有差異，第四季監測時水質測值已回復至歷史監測範圍。近岸休憩海域計有3個測站，由今年度9次監測結果顯示，以通霄海水浴場之水質狀況較佳。第二次採樣時，因鋒面過境受降雨及河川匯流之影響，各海水浴場水質監測結果，略有轉差情形。水庫水質計有8座水庫，每月監測一次。由今年度監測結果顯示，日月潭水庫各監測項目均符合甲類陸域地面水體水質標準。而各水庫優養化程度以日月潭水質最佳，全年屬貧養等級比例佔75.0%，另以大埔水庫水質最差，全年屬優養等級比例佔91.7%。鯉魚潭水庫、德基水庫及永和山水庫之水質變動較大，水質屬貧養至優養等級，其他水庫如頭社水庫、明德水庫則屬普養至優養等級。地下水水質監測計有 6 縣市，93個監測井，由今年度監測結果顯示，超過地下水第二類監測基準之項目與歷年結果相近，主要以氨氮、鐵及錳為主。而以彰化縣及雲林縣境內監測井之氨氮測值，較其他縣市之測值為高，應是該區域之地質特性因素所致。各監測井之水質，以Stiff水質形狀圖方式評估，屬Ca2＋及HCO3－+CO32－凸出型佔最高比例為60.0%，Piper圖解則屬I區佔最高比例為56.2%，與近 2 年評析結果大致呈現一致趨勢。

中文關鍵字

水質監測,水質標準、方法偵測極限

類型	檔名	檔案大小	說明	最新版公開日期
期末報告	EPA94L10202202(96年度).pdf	25MB	[期末報告]公開完整版	2008/3/1 上午 12:00:00

摘要	The aim of this project is to monitor the water quality of river, ocean, reservoir and groundwater in six counties located in the central part of Taiwan. The monitoring data obtained in this work can be useful to evaluate the current condition of the water systems, to predict the changing trend of quality of the water, and to provide information for government to make pollution control policy. A total of 75 water-monitoring stations spreading in the area of six counties, the monitoring frequency is once per month. From the data obtained, it shows that the water quality of Si-Hu river is the best among the rivers monitored, while the rivers of Lu-Gang and Bei-Gang are found in relatively high extent of pollution. As to the suspended solid concerned, the concentration measured in June in the rivers of Da-An, Da-Jia and Wu are found remarkabley higher than the other months, which is possibly due to rainfall happened in summer season. In general, the water quality of 18 rivers suveyed in this year is found significantly better compared to the past two years. The ocean water quality was subsequently monitored. According to the data collected, Hsiang-Shan (in Hsinchu city) seashore, Taichung Harbor and Chang-Hwa seashore can all meet the water quality critera of category B, while that of Yun-Lin seashore meet the criteria of category A Since there are typhoon attacks in the 3rd quarter of 2007, the water quality parameters including temperature, salinity and some metal ions measured are seen in big difference from that found before. But the situation soon return to normal as is reflected from the data shown in the 4th quarter. There are only 3 stations for beach water monitoring in this work. The water quality of Tung-Hsiao beach resort is found better than the others. By comparing the water quality of beach resort obtained from different sampling times, it shows that the data from 2nd-sampling is obviously worse than that of the others, which can be attributed to rainfall and affluxion of rivers. The monitoring of reservoir water in 8 dams was conducted with a frequency of once per month. The results show that the water quality of Sun-Moon Lake reservoir is the best among all the dams monitored, which meets the water quality criteria of category A. The water quality of some other reservoirs such as Li-Yu-Tan, Ter-Chi and Yung-Ho-Shan is found somewhat fluctuated. Finally, the monitoring of groundwater was conducted in six counties covering 93 wells. The data show that among the monitoring items, ammonia nitrogen, iron and manganese are found out of quality control criteria, which is also observed in the past years. It is worth to note that the measured values of ammonia nitrgen in grounwater of Chang-Hwa county and Yun-Lin county are significantly higher than that found in the other counties, which may be attributable to the local geological characteristics. By graphically analyzing the respective monitoring item with Stiff-plotting and Piper-plotting, it shows a general trend same as that observed in the last two years, indicating no significant change of grounwater quality of these areas.
英文關鍵字	Water Quality Monitoring, Water Quality Standards, Method Detection Limit

摘要

The aim of this project is to monitor the water quality of river, ocean, reservoir and groundwater in six counties located in the central part of Taiwan. The monitoring data obtained in this work can be useful to evaluate the current condition of the water systems, to predict the changing trend of quality of the water, and to provide information for government to make pollution control policy. A total of 75 water-monitoring stations spreading in the area of six counties, the monitoring frequency is once per month. From the data obtained, it shows that the water quality of Si-Hu river is the best among the rivers monitored, while the rivers of Lu-Gang and Bei-Gang are found in relatively high extent of pollution. As to the suspended solid concerned, the concentration measured in June in the rivers of Da-An, Da-Jia and Wu are found remarkabley higher than the other months, which is possibly due to rainfall happened in summer season. In general, the water quality of 18 rivers suveyed in this year is found significantly better compared to the past two years. The ocean water quality was subsequently monitored. According to the data collected, Hsiang-Shan (in Hsinchu city) seashore, Taichung Harbor and Chang-Hwa seashore can all meet the water quality critera of category B, while that of Yun-Lin seashore meet the criteria of category A Since there are typhoon attacks in the 3rd quarter of 2007, the water quality parameters including temperature, salinity and some metal ions measured are seen in big difference from that found before. But the situation soon return to normal as is reflected from the data shown in the 4th quarter. There are only 3 stations for beach water monitoring in this work. The water quality of Tung-Hsiao beach resort is found better than the others. By comparing the water quality of beach resort obtained from different sampling times, it shows that the data from 2nd-sampling is obviously worse than that of the others, which can be attributed to rainfall and affluxion of rivers. The monitoring of reservoir water in 8 dams was conducted with a frequency of once per month. The results show that the water quality of Sun-Moon Lake reservoir is the best among all the dams monitored, which meets the water quality criteria of category A. The water quality of some other reservoirs such as Li-Yu-Tan, Ter-Chi and Yung-Ho-Shan is found somewhat fluctuated. Finally, the monitoring of groundwater was conducted in six counties covering 93 wells. The data show that among the monitoring items, ammonia nitrogen, iron and manganese are found out of quality control criteria, which is also observed in the past years. It is worth to note that the measured values of ammonia nitrgen in grounwater of Chang-Hwa county and Yun-Lin county are significantly higher than that found in the other counties, which may be attributable to the local geological characteristics. By graphically analyzing the respective monitoring item with Stiff-plotting and Piper-plotting, it shows a general trend same as that observed in the last two years, indicating no significant change of grounwater quality of these areas.

英文關鍵字

Water Quality Monitoring, Water Quality Standards, Method Detection Limit