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Trend Analysis of the COD and Nutrients Concentrations in the Yongwon Channel, Chinhae  

Cho, Hong-Yeon (Marine Environment & Pollution Prevention Research Department, KORDI)
Chae, Jang-Won (Marine Environment & Pollution Prevention Research Department, KORDI)
Park, Joung-Guy (SeoYoung Engineering Co. Ltd., Environment Team)
Koo, Myung-Seo (SeoYoung Engineering Co. Ltd., Environment Team)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.20, no.4, 2008 , pp. 421-428 More about this Journal
Abstract
Youngwon channel located in Chinhae city and formed by the Busan New Port Construction Project has been concerned about the water quality degradation problems because of the flow and pollutants stagnation due to its long-narrow shape. In this study, the water quality(hereafter WQ) variation is analysed by using the monthly WQ data measured in Yongwon channel from 2003 to 2007. The analysis shows that the TN and TP concentration in the inside Yongwon channel is definitely worse than the TN and TP concentration in the entrance of the Yongwon channel based on the 95% confidence level. The COD, TN, and TP concentrations in the Yongwon channel are 1.34, 2.08, and 1.80 times larger than that in the entrance of the Yongwon channel, respectively. It has been found that only the TP concentration in SW-26 station has an increasing trend based on the Mann-Kendall test with respect to 95% confidence level. The other stations and the other WQ constituent changes do not have the any significant trends.
Keywords
Yongwon channel; water quality variation; error bounds; Mann-Kendall trend test; Busan New Port;
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Times Cited By KSCI : 1  (Citation Analysis)
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