• Title/Summary/Keyword: Oil-spill

Search Result 342, Processing Time 0.026 seconds

Ten Years' Monitoring of Intertidal Macroalgal Vegetation of Hyogo Prefecture, Northwestern Coast of Honshu, Japan to Assess the Impact of the Nakhodka Oil Spill

  • Kawai, Hiroshi;Kamiya, Mitsunobu;Komatsu, Teruhisa;Nakaoka, Masahiro;Yamamoto, Tomoko;Marine Life Research Group of Takeno, Marine Life Research Group of Takeno
    • ALGAE
    • /
    • v.22 no.1
    • /
    • pp.37-44
    • /
    • 2007
  • In order to understand the impact of the heavy-oil pollution by the 1997 Nakhodka oil spill on the intertidal macroalgal vegetation, we have been monitoring succession in the intertidal flora since 1997 at Oh-ura, Takno, and Imago-Ura Cove, Kasumi in Hyogo Prefecture, northwestern coast of Honshu, Japan. We employed two different monitoring methods: 1) The percent cover of macro-algae (seaweeds) in 1 x 1 m quadrats along 450 m intertidal transects parallel to the shoreline were assessed and recorded by photographic imaging until 2002, and for 30-40 m transects of the most heavily polluted areas in 2004 and 2006; 2) The percent cover of macro-algae in 0.5 x 0.5 m quadrats along a transect line perpendicular to the shore were recorded and all macrophytes within the quadrat were completely removed to record the wet weight of each taxon (1997-2006). Based on the monitoring data, we conclude that the high intertidal zone at Imago-ura, where a large part of the stranded oil accumulated, suffered the heaviest damage and experienced the slowest recovery. In addition, although the original status of macroalgal vegetation before the impact was not well-documented, it appeared that recovery from the damage caused by the oil pollution required four to five years.

Analysis of the risk of further oil spill from Sunken lanker, 'Kyung-Shin' (침몰 유조선 경신호의 추가 해양오염 가능성에 관한 연구)

  • Choi Hyuek-Jin;Byun Sung-Hoon;Lee Moon-Jin;Kang Chang-Gu
    • Journal of the Korean Society for Marine Environment & Energy
    • /
    • v.5 no.4
    • /
    • pp.63-73
    • /
    • 2002
  • This paper presents the results of a ten-day long survey for assessing the possibility of further oil spillage from the sunken tanker, Kyung-Shin(995 G/T), which had sunken in the East Sea, off Pohang City, in February 1988. The survey was conducted using remotely operated vehicle(ROV), manned submersible and ultrasonic thickness gauge in September 2001. The external inspection by the optical camera shows that small scale oil spill has been continued from the sunken ship. It's hull thickness was also measured at several points of the ship, using an ultrasonic sensor for assessing the current corrosion status of the sunken ship. Taking into account the results of this survey and the existing salvage report, it is estimated that the remaining oil in the tanker is approximately 600 ㎘, and this oil could be leaked into marine environment due to continuous severe corrosion if no preventive is taken.

  • PDF

Methodology for Selection and Sensitivity Index of Socio-economic Resources for Marine Oil Spill Incidents (해양 유류유출 오염으로 인한 사회·경제적 민감자원 선정 및 지수화 방안)

  • Roh, Young-Hee;Kim, Choong-Ki
    • Journal of Environmental Impact Assessment
    • /
    • v.25 no.6
    • /
    • pp.402-413
    • /
    • 2016
  • Marine oil spill accidents are occurring continuously due to the marine transportation of the oil. While building a preventive system for oil spill is uttermost necessary, we also need to have a systematic response system to handle the oil spills that inevitably occur. So far, studies have focused on the environmentally sensitive resources affected by oil spills. However, there is a need to conduct research to evaluate the damage to the socially and economically sensitive resources that make up the life of local residents. This study represents the process of building an analytical framework for the assessment of socioeconomic resources affected by marine oil spills. While it is important to provide a scheme for identification and indexation of socially and economically sensitive resources that is compatible with Korea's situations, using existing data for identifying socio-economically sensitive resources might also be meaningful. However, to allow accurate analysis for better evaluation, we need to select more applicable data among the various indicators. In this research, we have reviewed many existing case studies of sensitive resources, studies of the variables that have been used for indexing sensitive resources, and various factors considered in SIA (Social Impact Assessment). Based on the findings, we classify socio-economically sensitive resources into marine products acquisition, population, land usage, administrative area, and cultural heritage and tourist region.

Problems of Disaster Reporting in Korea - Case of Hebei Spirit Oil Spill in Taean-gun (허베이 스피리트호 기름유출사고를 통해 본 재난보도의 문제점)

  • Park, Dong-Kyun
    • The Journal of the Korea Contents Association
    • /
    • v.9 no.5
    • /
    • pp.241-248
    • /
    • 2009
  • On 7 December 2007, the Hong Kong registered tanker Hebei Spirit, laden with 209,000 tonnes of crude oil, was struck by the crane barge Samsung No 1, whilst at anchor about five miles off Taean on the West Coast in Korea. About 10,500 tonnes of crude oil escaped into the sea from the Hebei Spirit. The recent oil leakage from a tanker in seas off Taean has turned the sea farms and fishing areas on the country's western coast into a sea of oil. Analysts say the spill is considered as one of the world's devastating sea pollution cases involving oil. In our contemporary society where people are exposed to potential dangers in every aspect, no one can be free from such dangers. With an increase in human casualties due to disaster, disaster reporting plays a vital role in preventing and minimizing damages. Despite such enormous significance, however, Korean disaster reporting has not performed effectively. In this contexts, this study analyzed the problems of disaster reporting in Korea, with the case of Hebei Spirit oil Spill in Taean-gun. And, this study suggest the establish ways and means needed to improve the disaster reporting in Korea with the case of Hebei Spirit case.

Changes of Eating Habits of the Residents of Taean, Korea after the Herbei Oil Spill Accident Based on Focus Group Interviews (허베이스피릿호 원유유출 사고 이후 태안주민의 식생활 변화 - 포커스 그룹 면담 결과 -)

  • Park, Ji-Hyun;Kwon, Sung-Ok;Jeong, Woo-Cheol;Huh, Jong-Il;Oh, Se-Young
    • Korean Journal of Community Nutrition
    • /
    • v.16 no.4
    • /
    • pp.466-472
    • /
    • 2011
  • Hazardous chemicals, such as polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs) and heavy metals, are known as being harmful to human health were included in oils released by the Herbei Spirit Oil Spill accident in December 2007. To investigate changes of eating habits by the exposure to harmful substances, we conducted 5 focus group interviews for residents at Taean coast areas, who had experienced the oil spill accident. Participants included 46 women (mean age: $57.2{\pm}10.9$) who were mainly responsible for preparing family meals. Focus group discussions were audio-taped, transcribed and categorized by themes. Participants expressed more frequent illness symptoms such as dizziness, vomiting, visual loss, and skin diseases after the accident. They mentioned that their worries about economic hardship and worsened health status since the accident induced mental problems, such as depression about their children. Regarding eating habits, participants reported less intakes of fishes and meats and relatively more intakes of vegetables and kimchi due to the lack of household incomes after the accident. Although the participants had been used to collecting or catching fish or shellfish for their consumption previously, they mainly purchased these foods from local markets after the accident. Changes of eating habits induced by the accident included drinking boiled water and having steamed or fried seafood rather than raw seafood. Changes of food intakes occurred less frequently in older adults due to their longterm fixed eating habits, although they felt uncomfortable for having raw fish. The findings of this study clearly present that the exposure of hazardous substances by the oil spill accident had a significant impact on changes in eating habits besides economic, physical, and mental problems among the residents in Taean. Continuous health and nutrition monitoring and support are needed.

SATELLITE MONITORING OF OIL SPILLS CAUSED BY THE HEBEI SPIRIT ACCIDENT

  • Yang, Chan-Su;Yeom, Gi-Ho;Chang, Ji-Seong
    • Proceedings of the KSRS Conference
    • /
    • 2008.10a
    • /
    • pp.368-368
    • /
    • 2008
  • Oil spills are a principal factor of the ocean pollution. The complicated problems involved in detecting oil spills are usually due to varying wind and sea surface condition such as ocean wave and current. The Hebei Spirit accident was happened in the west sea ($36^{\circ}$41'04" N, $126^{\circ}$03'12" E) near about 8 km distant from Tae-An, Korea on December 7, 2007. The aim of this work is to improve the detection and classification performance in order to define a more accurate training set and identifying the feature of oil spill region. This paper deals with an optimization technique for the detection and classification scheme using multi-frequency and multi-polarization SAR and optical image data sets of the oil spilled sea. The used image data are the ENVISAT ASAR WS and Radarsat-1 of C-band and ALOS PALSAR of L-band SAR data and KOMPSAT-2 optical images together with meteorological or oceanographic data. Both the theory and the experimental results obtained are discussed.

  • PDF

Prediction of Propulsive Performance of VLCC at Heeled and Trimmed Conditions (대형유조선의 경사상태011서의 저항추진 성능추정)

  • Yang, Ji-Man;Kim, Hyo-Chul
    • Journal of the Society of Naval Architects of Korea
    • /
    • v.42 no.4 s.142
    • /
    • pp.307-314
    • /
    • 2005
  • In recent years, many environmentally disastrous oil spill accidents from damaged vessels become worse especially when the early treatment is not prompt enough. To properly handle this type of accidents and prevent further disasters, international organizations establish and impose various rules and regulations. In assessing the damages and providing salvage operations, the propulsive performance of damaged vessels is of great importance, as well as for containing oil spill while the vessels are being towed or self-propelled. Until now, many naval hydrodynamics researches have focused on the propulsive performance in normal operating conditions and only a few studies for damaged vessels are found in literature. In this paper experimental method is used to study the Propulsive performance of a very large crude-oil carrier (VLCC) in .heeled and/or trimmed conditions.

Speculation on international/domestic remediation technologies for the contaminated coastal area by oil spill events and future research plan (연안지역 유류오염 복원에 대한 국내/외 기술고찰 및 향후 연구계획)

  • Cha, Sung-Min;Ki, Seo-Jin;Choi, Hee-Chul;Kim, Joon-Ha
    • 한국방재학회:학술대회논문집
    • /
    • 2008.02a
    • /
    • pp.421-423
    • /
    • 2008
  • The development of remediation technologies in the contaminated coastal area from oil spill is essential for solving environmental disaster. Many countries including USA, France and United Kingdom have tried to make novel remediation techniques and predict oil dispersion in the ocean and coastal line by using their own models. To develop new technology of remediation, this research in advance was carried out the status of domestic and international remediation technologies and tried to suggest future research plan for developing new remediation technologies considering geographical characteristics of Korea peninsula.

  • PDF

OIL SPILL DETECTION AND MONITORING BY HEBEI SPIRIT DISASTER USING SATELLITE DATA (허베이 스피리트호 유류 유출 탐지 연구)

  • Yang, Chan-Su
    • Proceedings of KOSOMES biannual meeting
    • /
    • 2008.05a
    • /
    • pp.125-127
    • /
    • 2008
  • 허베이스피리트호 원유유출 사고는 2007년 12월7일 아침 7시6분경 서해안 만리포 북서쪽 10km 해상에서 크레인을 적재한 1만1800t급 바지선이 정박 중인 흥콩 선적 유조선 허베이 스피리트호(14만6000t급)와 부딪치면서 발생했다. 이와 같은 기름 유출 사고의 경우, 유출 범위를 정확하게 이해하는 것이 중요하다. 여기서는 위 사고 기간에 얻어진 인공위성 자료를 이용하여 기름 유출을 탐지하기 위한 연구결과를 소개한다. 광학과 마이로파영상에 대해 유출 범위의 계산 및 해석 알고리듬에 대한 현재까지의 결과를 소개한다. 광학영상으로는 아리랑 2호 (다목적 실용위성 2호, KOMPSAT II) MSC(Multi Spectral Camera)자료가 사용되었으며, 합성개구레이더로는 ENVISAT ASAR, TerraSAR-X 및 ALOS PALSAR의 자료가 사용되었다.

  • PDF

Establishment of Korean Environmental Sensitivity Index Map (ESI Map 구축 연구)

  • Sung H. G.;Lee H. J.;Lee M. J.;Kang C. G.
    • Journal of the Korean Society for Marine Environment & Energy
    • /
    • v.6 no.4
    • /
    • pp.3-12
    • /
    • 2003
  • Due to the high demand on energy resources accompanied by continuing industrialization and urbanization, the world marine transportation of crude and product oils is being gradually increased. In Korea, we are exposed to the large-scale marine oil spill accidents because a very large oil tanker of 300,000 tonnage must enter Korean Ports every day to meet the domestic demand on oils. Although we are exerting our strength to reduce the probability of marine oil pollution accidents, a unrestorable oil spill is to occur owing to human errors, severe weather conditions, or combined causes. Thus, area contingency plan equipped with appropriate management system for response and restoration for the worst case discharge scenario must be entirely prepared to protect mine environments and coastal resources. In particular, we are focusing on the Environmental Sensitivity Index Map(ESI Map) to reduce the environmental consequences of both spills and clean-up efforts by specifying protection Priorities in advance and identifying in-situ response strategies. In this paper, Korean ESI Map is introduced with brief definition of sensitivity to oiling and main features of the software developed hitherto.

  • PDF