The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY (한국해양학회지:바다)

The Korean Society of Oceanography (한국해양학회)
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Dissolved Aliphatic Hydrocarbons in the surface waters of Cheju-Korea Straits region

제주-대한해협의 표층해양의 용존 탄화수소

  • Published : 2000.11.30
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Abstract

Dissolved aliphatic hydrocarbon concentrations in the surface seawater were investigated to describe their distribution and elucidate their sources in the Cheju-Korea Straits region (33$^{\circ}$30‘-34$^{\circ}$N 125$^{\circ}$-128$^{\circ}$E). Seawater sampling was made in spring and autumn in 1998. A large temporal and spatial variability were observed in the dissolved hydrocarbon concentrations in the region. The sources of dissolved hydrocarbons in seawater were elucidated based on the molecular concentrations of n-alkanes and pristane. Dissolved hydrocarbons in the surface water appears to be largely originated from phytoplankton and petroleum in the southern Yellow Sea (125$^{\circ}$), and terrigenous and petrogenic in the Cheju-Korea Straits region in April 1998. In September 1998, dissolved hydrocarbons in the surface waters were largely derived from phytoplanktons and terrestrial material in the Cheju-Korea Soaits region.

제주-대한해협중 소흑산도에서 부산앞 대마도부근 까지의 제주도 이북의 대륙붕 해역 (33$^{\circ}$30'${\sim}$34$^{\circ}$N 125$^{\circ}$${\sim}$128$^{\circ}$E) 용존탄화수소의 분포와 성인을 조사하였다. 표층 해수중 용존탄화수소 총함량의 시 ${\cdot}$ 공간적 변이는 10배 이상이 대체로 연안에서 높고 외해에서 낮으며, 총함량은 가을에 봄보다 높다. 탄화수소의 성인을 n-alkanes과 pristane함량을 기준으로 보면 해수중 용존 탄화수소는 1998년 4월의 경우, 황해남부(125$^{\circ}$E) 해역에서는 식물플랑크톤기원 및 석유기원 탄화수소가 우세하고, 남해에서는 육상기원과 석유기원이 우세하다. 그리고 1998년 9월에는 남해에 식물플랑크톤과 석유기원이 우세하게 나타났다.

Keywords

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