• Journal of Soil and Groundwater Environment
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• v.8 no.4
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• pp.64-67
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• 2003

In order to identify the origin and nature of the spilled oil in the potential source, we analyzed the concentrations of specific fuel constituents in fuel standard and environmental samples. The ratios of pristane/phytane are virtually unaltered because these compounds have the same bolatility in environmental samples. These were useful to identify the source of the fuel oil and to assess the effect of microbial degradation and weathering of the fuel oil. We analyzed the ratios of pristane/phytane in neat white kerosene, boiler kerosene, JP-8 and diesel products from L and S gas station. The ratios of pristane/phytane in L-white kerosene and JP-8 was 3.10 $\pm$0.03 and 1.77 $\pm$ 0.01, respectively. Otherwise, the ratios of pristane/phytane in water phase after distribution of fuel oil and water was 2.97 $\pm$0.02 in case of white kerosene and 1.65 $\pm$ 0.02 in case of JP-8. It is apparent from the results that the ratios of pristane/phytane were as product-specific, especially between kerosene and JP-8, and therefore, can also be used for fuel type identification in free products and groundwater samples which were collected in monitoring wells.

• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 2003.10a
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• pp.297-302
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• 2003

This study was carried out to check the contingency planning methods under the analysis of oil spill potential and make a guide line to apply the results to the port of Busan. The expected spilled oil drift patterns are considered with the most probable scenarios under the base of the oil spill potential. The results obtained from this study are as follows: (1) Analysis method of oil spill potent was proposed and the applicability was proved by the application example to the port of Busan to make the contingency plan. (2) Responsible oil spill contingency planning methods / flow are suggested considered environmental factors and the oil spill potential. (3) The coastal waters of Busan was consist of rocky flat, man-made solid shore and beach shore. Marine traffic have high density of oil tanker and cargo ship. Also, oil tanker ship are examined in the small ships to be less than 3000t to supply oil to the ship moored / anchored as well as the large amount of oil tank / basin are located along the coast of Busan port. These systems are introduced to make in put data to the analysis of oil spill potential. (4) According to the analysis of historical records of oil spill accident in Busan, the frequency of accidents by cargo ship rank highest and 45% of accidents is caused by carelessness. about 65% of total accidents shows a small spill accident of less than $10k{\ell}$.

• Journal of Preventive Medicine and Public Health
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• v.43 no.2
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• pp.166-173
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• 2010

Objectives: On December 7, 2007, the Hebei Spirit oil tanker spilled out 12,547 kl of crude oil on the Yellow Sea 10 km away from the cost of Taean Province, Korea. As the coastline has been contaminated, local residents have been exposed to crude oil. Because the residents were showing many symptoms, we investigated the acute health effects of this oil spill on them. Methods: We conducted a cross-sectional study consisting of the heavy and moderately oil soaked area in Taean and the lightly oil soaked area in Seocheon. Ten seashore villages were selected from each area, and 10 male and female adults were selected from each village. We interviewed the subjects using a structured questionnaire on the characteristics of residents, the cleanup activities, the perception of oil hazard, depression and anxiety, and the physical symptoms. The odds ratios and 95% confidence intervals were analyzed using logistic regression analysis. The logistic regression model was adjusted for age, gender, education, smoking, the perception of oil hazard and anxiousness. Results: The more highly contaminated the area, the more likely it was for residents to be engaged in cleanup activities and have a greater chance of exposure to oil. The indexes of anxiety and depression were higher in the heavy and moderately oil soaked areas. The increased risks of headache, nausea, dizziness, fatigue, tingling of limb, hot flushing, sore throat, cough, runny nose, shortness of breath, itchy skin, rash, and sore eyes were significant. Conclusions: The results suggest that exposure to crude oil is associated with various acute physical symptoms. Long-term investigation is required to monitor the residents' health.

• Journal of the Korean Society for Marine Environment & Energy
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• v.12 no.3
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• pp.111-123
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• 2009

The purpose of this study is to investigate the time-elapse change of oil-polluted Taean coastal area with by Herbei Spirit oil spill incident. From Mandae of Iwonmeyon to Padori beach of Sowonmeyon, field monitering was conducted at eleven surveying points surveying. The specific conclusions from this study are as follows. The residual oil was not founded at ten surveying points, but the crude oil remained under the ground at the Groompo beach one year passed since the oil spill. Because the efforts of volunteers over millionaires and inhabitants for cleaning and reciprocating actions of waves, the oil-polluted coastal area by Herbei Spirit oil spill incident. It is guessed that a part of stranded oil spilled from the incident was degraded by physical, chemical, and biological weathering and the residue was dispersed in tidal and subtidal zone with oil-minerals aggregates(OMA).

• Journal of Ocean Engineering and Technology
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• v.27 no.4
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• pp.90-97
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• 2013

Oil booms are one of the most widely used types of equipment for the protection of coastal areas against oil spills. In some situations, however, there are several types of oil leaks from the oil boom. Important factors regarding these phenomena include the surrounding ocean environment, such as waves, the density and viscosity of oil, the length of the oil boom skirt, etc. To estimate the performance of the oil boom, it is necessary to predict the behavior of the spilled oil and oil boom. In the present study, the prediction of oil boom performance in waves was carried out using the Pusan-National-University-modified Moving Particle Semi-implicit (PNU-MPS) method, which is an improved version of the original MPS proposed by Koshizuka and Oka (1996). The governing equations, which consist of continuity and Navier-Stokes equations, are solved by Lagrangian moving particles, and all terms expressed by differential operators in the governing equations are replaced by the particle interaction models based on a kernel function. The simulation results were validated through a comparison with the results of Violeau et al. (2007)..

• Journal of the Korean Society of Marine Environment & Safety
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• v.7 no.1
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• pp.7-14
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• 2001

The amount of petroleum consumption has been Increased according to the industrialization and It leads to the increase of the possibility of marine oil pollution. In Korea, some countermeasures including oil skimmer, gelling agent and herding agent of oil have been used for the remediation of the pollution. However, most of them have lets of shortcomings in the application under in-situ condition, because they are sensitive to the situation such as geographical feature, the wind and the tide. In reported literature, the natural powdered oil absorbent which is made of peat moss is an effective mean to clean spilled oil from lake or coast. However, the peat moss is a natural resource which is only Produced from a specific cold weather are like Canada. This indicates that the alternative materials which is readily obtained from everywhere are needed for powdered oil absorbent. Therefore. in the study, same natural materials including pine leaves and straw are tested as the alternative materials for the absorbent. The raw materials were dried and treated by heat at various temperature during several Periods and then. shattered by a grain cracking machine. The oil sorption capacity of the prepared materials was compared according to the methods of heat treatment and their sizes. The proportion of hydrogen cyanide to combustion of the absorbents was measured to confirm their final disposal methods. The biodegradability test of the absorbents was carried our to evaluate possibility of a side pollution in the coast. In was found that the heat treatment of pine leaves enhanced the capacity of oil sorption and decreased the water sorption. The maximum oil sorption was observed for the material treated at 18$0^{\circ}C$for 60 min. The amount of hydrogen cyanide from the combustion were 0.09ml/g, 0.07ml/g for pine leaves and straw respectively meaning that the final disposal by combustion might be feasible. The amount or organic carbon extracted from pine leaves during 7 days was up to 0.015g organic carbon from one gram of pine leaves. but the degradation was as fast as for glucose. It is concluded that the pine leaves can be served as a good raw material for the powdered oil absorbent like peat moss.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2008.05a
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• pp.53-56
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• 2008

When someone measuring for pressure of a Solid Rocket Motor(SRM) at Static Firing Test, generally, used with pressure tube to be filled in Oil. But, if you used pressure tube with oil, you were worried about possibility of spilled oil when you measured pressure in SRM at high altitude environment. Because it usually connected at ignitor. In this paper, We described how to make a pressure tube without oil and matters to be attended to design it.

• Journal of Life Science
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• v.9 no.1
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• pp.84-91
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• 1999

Sediment samples from the waste-oil spilled sites were screened for microorganisms able to degrade the components of crude oil, and 3 strains that could degrade were obtained. The isolated 3 strains (Xl, X2 and X3) metabolized naphthalene and 2-methyl naphthalene about 80$\%$ as well as hexane and hexadecane about 60~70$\%$ as a sole carbon source in 7 days. The degradation of the waste oil was about 60$\%$. The addition of synthetic surfactant, Triton-X 100 or Tween 20 slightly inhibited the growth of the populations. Xl and X2 were gram negative and X3 was gram positive. Xl and X3 showed ampicillin resistancy. Xl strain having 30kb plasmid has been selected for genetic study. The plasmid was isolated and transformed into E. coli. showing the possibility of the genetically engineered degrader.

• Journal of the Society of Naval Architects of Korea
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• v.34 no.2
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• pp.104-110
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• 1997

Increase of marine transpotation in coastal area frequently yields oil spill accidents due to collision or grounding of oil tankers, which affects great deal of damages on ocean environments. Exact prediction of oil pollution area in time domain, which is called oil map, is very important for effective and efficient oil recovery and minimization of environmental damage. The prediction is carried out by considering the two distinct processes which are initial diffusion on the still water surface and advection due to tide, wind wave induced surface currents. In the present paper, only the initial diffusion is dealt with. Somewhat new simulation model and its numerical scheme are proposed to predict it. Simple diffusion experiment is also carried out to check the validity of the present method. Furthermore, some example simulations are performed for virtual oil spill accident. Quite realistic oil map including oil thickness distributions can be obtained by the present model.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.235-235
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• 2017