• Title/Summary/Keyword: Mokpo coast

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Response Activities for Tar Ball Pollution from the 'Hebei Spirit' Oil Spill in the Southwestern Sea of Korea (서남해역에서 허베이스피리트호 원유유출 사고에 의해 생성된 타르볼 방제작업)

  • Cho, Hyun-Jin;Kim, Jeong-Yeop;Yang, Mun-Chul;Seo, Kang-Ryul;Min, Nam-Gi;Im, Sung-Huk;Jeon, Sung-Gun;Kim, Hee-Sik;Kim, Young-Hwa;Kim, Gi-Hun;Chang, Sun-Hee
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.12 no.4
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    • pp.279-283
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    • 2009
  • Approximately 12,547 kL of oil from the tanker 'Hebei Spirit' released into the western sea of Korea, which subsequently reached and covered extensive areas of the western coastlines of Korea. In the following days great numbers of tar balls hit the southwestern coast. Three different cleanup methods were used to mediate the southwestern coastline tar ball pollution by Korea Coast Guard (KCG) net setting, manual pick up, and sweeping them up. Net setting was useful in protecting coastlines from being hit by tar balls. The cold weather in winter conditions helped the tar ball response efforts because it caused them to harden, allowing them to be swept up from beaches and to be gathered up by hand.

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A Laboratory Study for Erosional Properties of Cohesive Sediments from Mokpo Coast (목포해역 점착성 퇴적물의 침식특성에 대한 실험적 연구)

  • Kim, Man-Kon;Yang, Su-Hyun;Tae, Dong-Hyeon;Hwang, Kyu-Nam
    • Journal of Ocean Engineering and Technology
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    • v.25 no.1
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    • pp.14-21
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    • 2011
  • The purpose of this study is to quantify the erosional parameters, such as the critical shear stress for erosion and the erosion rate coefficient for cohesive sediments from the Mokpo coast. Using Chonbuk annular flume, five erosion tests were conducted under the uniform bed condition but a different bed density respectively. Erosion test results for Mokpo sediments have shown increases in the range of $0.16{\sim}0.43\;N/m^2$ but decreases exponentially in the range of $272{\sim}4.64\;mg/cm^2{\cdot}hr$ for the given bed shear stress of $1.14{\sim}1.34\;g/cm^3$. The erosional parameters of Mokpo sediments are found to vary remarkably in quantity compared with those for cohesive sediments from other sites. On the whole, the value of Mokpo coast sediments appears to be similar to Kunsan sediments but smaller than Saemankeum and Okeechobee sediments. On the other hand, Mokpo sediments have been shown to be larger than Saemankeum and Okeechobee sediments but smaller than Kunsan sediments.

Sources and Distributions of Organic Wastewater Compounds on the Mokpo Coast of Korea

  • Choi, Min-Kyu;Choi, Hee-Gu;Moon, Hyo-Bang;Yu, Jun;Kang, Sung-Kyung;Choi, Su-Kyung
    • Fisheries and Aquatic Sciences
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    • v.10 no.4
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    • pp.205-214
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    • 2007
  • Surface water and sediment samples collected from the Mokpo coast of Korea were analyzed for molecular markers of organic municipal wastewaters, i.e., 11 fecal sterols including coprostanol (Cop) and nonylphenolic compounds (NPs), to characterize the main routes of these wastewaters to the coast and to assess contamination levels. Concentrations of Cop ranged from 94 to 7,568 ng/L in surface water and from 43 to 38,108 ng/g dry weight in sediments. Concentrations of NPs [nonylphenol (NP) and nonylphenol mono- and di-ethoxylates ($NP_{1-2}EOs$)] ranged from 123 to 4,729 ng/L in surface water and from 4 to 2,119 ng/ng dry weight in sediments. The levels of these compounds were much higher at stations near the rivers that pass through the urban center of Mokpo and the outfall of the wastewater treatment plant (WWTP). The spatial distribution of Cop levels was statistically similar to that of NPs (r=0.809 and 0.982 in surface water and sediments, respectively), indicating that these compounds may have similar discharge points, transport, mixing, and deposition in the study area. These results suggest that considerable amounts of organic wastewater compounds are discharged through rivers and WWTP effluent to the Mokpo coast.