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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46439

Title: 91-105年淡水河流域水質變化探討
The study of water quality variation around the Danshuei River during the period of 2002-2016
Authors: Huang,Chien-Hua
黃建華
Contributors: 國立臺灣海洋大學:海洋環境資訊系
Keywords: 淡水河;水質標準;溶氧;懸浮固體;氨氮
Danshuei River;water quality standards;Dissolved Oxygen;Suspended Solids;Ammonia Nitrogen
Date: 2017
Issue Date: 2018-05-16T08:49:48Z
Abstract: 本研究使用環保署91-105年在淡水河流域設置38個測站之水質監測資料,挑選淡水河流域各支流之上、中、下游計12個測站監測資料進行參數統計與分析,藉以瞭解淡水河流域水質狀態。環保署之水質監測項目計有18項,監測頻率為每季一次。資料分析結果,淡水河流域水體水質以浮洲橋(l)測站及秀朗橋(h)測站監測數值不合格率達50%以上項目最多,顯示淡水河流域未來應以大漢溪下游與新店溪中游為整治重點,並加強整治措施的廣度及執法強度,以期待淡水河流域水質不合格率逐年降低。其中發現溶氧、生化需氧量、懸浮固體、氨氮及總磷等項目,未符合環保署「陸地地面水體分類及水質標準」且不合格率達50%以上的測站,共有總磷4個測站、氨氮3個測站、溶氧2個測站、生化需氧量及懸浮固體各1個測站。上述未符合標準測站不合格率與次數概述如下:總磷部分,以秀朗橋(h)測站不合格率91.67%為最高,共有55次測值高於乙類水體水質標準;氨氮部分,以江北橋(c)測站及浮州橋(l)測站不合格率100%為最高,共有60次測值高於丙類水體水質標準;溶氧部分,以浮州橋(l)測站不合格率76.67%為最高,共有46次測值高於丙類水體水質標準。而生化需氧量及懸浮固體部分,分別為浮州橋(l)測站及秀朗橋(h)測站不合格率為83.33%及60%,共有50次測值高於丙類水體水質標準及有36次測值高於乙類水體水質標準。另重金屬元素監測項目,不合格率達50%的項目比例極低,僅有浮州橋(l)測站之銅監測項目不合格率為58.33%,共有35次測值高於法規標準。
In order to know the water quality of Danshuei River, this study collects data from 12 monitoring stations set by Environmental Protection Administration (EPA) in the upper, middle, and lower reaches of Danshuei River out of 38 stations in the River basin during 2002 to 2016 to do parameter statistics and analysis. There are 18 monitoring items. EPA executes monitoring practice quarterly. The analysis shows that, Fuchou Bridge (l) station and Ciulan Bridge (h) station possess the most monitoring items whose failure rate is over 50%. This shows that, in Danshuei River environment, EPA should take countermeasure of improving water quality especially in low reach of Dahan River and middle reach of Sindian River, extend improvement measures, and enhance laws and regulations force, so as to reduce the failure rate in Danshuei River basin year by year. For the concentration of 5 parameters: Total Phosphate(TP), Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Suspended Solids (SS), and Ammonia Nitrogen (NH3-N) monitored among the unqualified stations that over 50% of their monitoring results fail to meet the water quality standards, 4 stations do not meet TP standard value, 3 stations do not meet NH3-N standard value, 2 stations do not meet DO standard value, 1 station does not meet BOD standard value, and 1 station does not meet SS standard value. Over the years, none of the monitoring values in these stations meets Surface Water Classification and Water Quality Standards regulated by EPA. The failure rate and time of measurement results of the stations mentioned above are briefly summarized as following. For TP, Ciulan Bridge (h) station has the highest failure rate, 91.67%, and its TP value exceeds the B Class of Environmental Quality Standards for River for 55 times. For NH3-N, Jiangpei Bridge (c) station and Fuchou Bridge (l) station have the highest failure rate, 100%, and their NH3-N value exceeds the C Class of Environmental Quality Standards for River for 60 times. For DO, Fuchou Bridge (l) station has the highest failure rate, 76.67%, and its DO value exceeds the C Class of Environmental Quality Standards for River for 46 times. As for BOD and SS, Fuchou Bridge (l) station and Ciulan Bridge (h) station have the failure rate, 83.33% and 60% respectively, and their BOD and SS values exceed the C Class of Environmental Quality Standards for River for 50 times and the B Class of Environmental Quality Standards for River for 36 times. In addition, for heavy metal items, few stations fail to meet the standard for over 50% times of measurement results. Only Copper (Cu) value in Fuchou Bridge (l) station has the failure rate 58.33% and 35 times that its value exceeds EPA standards.
URI: http://ethesys.lib.ntou.edu.tw/cgi-bin/gs32/gsweb.cgi?o=dstdcdr&s=G004044E010.id
http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46439
Appears in Collections:[海洋環境資訊系] 博碩士論文

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