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頁籤選單縮合
題名 | 地下水的監測技術=Ground Water Monitoring Technologies |
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作者 | 衛紹騏; | 書刊名 | 農業工程學報 |
卷期 | 42:1 1996.03[民85.03] |
頁次 | 頁8-12 |
分類號 | 443.67 |
關鍵詞 | 地下水; 監測技術; 污染; Groundwater; Monitoring technologies; Contamination; |
語文 | 英文(English) |
中文摘要 | 地下水是水文循環的一部份,也是人類重要的天然資源,95%的飲用水存儲在地下水水層內,只有5%存儲在地表的河川和湖泊內。 地下水在地表面下流動,地下水污染不如地面水污染那麼明顯,地下水污染的來源很多,包括工廢水、農藥、石油、垃圾和海水入侵等,一旦污染物進入地下水系統,清理是相當困難的步驟,有時需要幾十年的時間才能達到清理的目標。 為了保護這個重要的天然資源,我們一定要用有效的監測系統和技術,希望能夠及早發現問題,馬上清理污染物。 地下水監測一向是測量水位和收集水樣送到水質實驗室分析,現在漸漸進展到實地測量水質,馬上可以知道結果,不需要等待實驗室的分析報告,大量減少時間和費用。 |
英文摘要 | Groundwater is part of the hydrologic cycle and is a major natural resource for the majority of the human population. In fact, approximately 95% of the Earth fresh-water is stored in aquifers, with only 5% stored in rivers, lakes and streams as surface water. A large percentage of the population believes ground water is naturally protected form contamination. The layers of clays, sands and gravels are thought to act as filters. Especially, groundwater contamination is not nearly as visible as surface water pollution or air pollution. This lack of visibility of contamination, however, is deceptive and misleading. The leakage from waste landfills, infiltration of pesticides and fertilizers from agricultural activities, drainage from septic tanks, leakage from petroleum and chemical storage tanks and pipes, accidental spills of chemicals and sea water intrusion due to over pumping of groundwater along coastal areas all have the potential of contaminating subsurface soil and water. Government regulatory agencies recognize that groundwater contamination is a serious problem. It may take years to discover contamination and then decades to clean up. These regulatory agencies have therefore provided guidelines and monitoring requirements for groundwater resources. The groundwater monitoring technologies, usually requiring the monitoring of groundwater levels and groundwater quality, have come a long way from the labor intensive, less accurate approaches to the current, reliable, on-site, real-time analysis. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。