碩士 / 國立臺灣海洋大學 / 海洋環境資訊系 / 104 / The present study employed the statistic method to evaluate the seawater quality around the Yun-lin county, in the central Taiwan, during 2001-2013. The seawater data were obtained from the EPA and the Industrial Development Bureau (IDB) seasonal investigation data. The statistic results indicate that some of the pH, DO, BOD, NH3-NH4+, and coliform data exceeded the A Class of Environmental Quality Standards for Sea Area. Totally, the exceeded frequencies were as follow: pH, six times; NH3-NH4+, five times; BOD, DO and coliform, once. The exceeded study area and survey time are as follows: pH, EPA station located in the estuarine mouth of the Zhuoshuixi pH value 7.2 (EPA 7.5<pH<8.5) and seawater at four-mile away pH 7.2, 2003 3rd season; IDB SEC5-05 station pH value 7~7.4, four times occurred in 2004 3rd season, 2005 3rd and 4th seasons, and 2008 4th seasons, respectively; DO, IDB SEC5-05 station DO value 3.8 mg/L (EPA standard > 5.0 mg/L) in 2004 3rd season; NH3-NH4+, IDB SEC7-05 station NH3-NH4+ value 0.73 mg/L in 2005 2nd season (EPA standard < 0.3 mg/L), value 0.34 mg/L in 2006 2nd season, value 0.86 mg/L in 2006 3rd season and value 0.74 in 2009 2nd season, and IDB SEC11-05 station value 0.38 mg/L in 2006 2nd season; BOD, IDB SEC5-11 station value 2.4 mg/L (EPA standard < 2.0 mg/L). The events of water quality exceeded the EPA Standard were very few and occurred occasionally. All of the trace metal concentrations data of the EPA and IDB survey results did not exceed the EPA Standard values. The statistic results indicate that the fail percentage of seawater quality is less than 0.01% among all the survey data. In order to maintain the marine environment sustainable, the fail percentage hopefully should be approached to zero.
| Identifer | oai:union.ndltd.org:TW/104NTOU5276005 |
| Date | January 2016 |
| Creators | Yang, Chung-Hsing, 楊忠興 |
| Contributors | Fang, Tien-Hsi, 方天熹 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 108 |
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