• Journal of the Korean Institute of Gas
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• v.21 no.4
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• pp.62-69
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• 2017

Chemical accidents are systematically managed by the Chemicals Control Act. However, the definition and case studies of violent incidents by hazardous chemical substances need to be adequately organized. In this study, we focused on suggesting improvement directions of the legal and institutional system to prevent the violent incidents of hazardous chemical substances by studying the problems of current legislation and drawing up implications through domestic and foreign cases. The suggestions for improvement are as follows: 1) Strengthening prevention through amendment of laws (1) Selection of the competent department; 2) Enforcing regulations on online and offline commerce (1) Setting personal purchase amount; and 3) Increasing public awareness and public education (1) Improvement of the continuous system through the Chemical Evaluation Committee.

• The Journal of the Convergence on Culture Technology
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• v.9 no.4
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• pp.577-585
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• 2023

This study applied ALOHA Program to predict the damage caused by fire and explosion predicted to occur from gas leakage at LPG stations and presented plans to prevent damages by diagramming the impact range and distance. The propane gas leakage from LPG stations causes human damage like breathing issues and property damage, including building destruction to residents in the surrounding areas. As a way to reduce this, first, the hazardous substance safety manager of the LPG station needs to check frequently whether the meters and safety valves are working properly to prevent leakage in advance. Second, the LPG stations' storage tanks should be worked by the person who received "hazardous substance safety manager training" under the provisions of the Act on the Safety Control of Hazardous Substances and has been appointed as a "hazardous substance safety manager" by the fire department. Third, LPG station's various safety device functions, such as overfill prevention devices, must be checked on a regular basis. Finally, wearing work clothes and shoes that prevent static electricity at LPG stations is highly recommended, as static can cause a fire when gas leaks.

• Bulletin of the Korean Chemical Society
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• v.24 no.8
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• pp.1163-1168
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• 2003

The structures of molecular species of galactolipids, such as monogalactosyl diacylglycerol (MGDG) and digalactosyl diacylglycerol (DGDG), isolated from wheat flour have been investigated using negative-ion electrospray ionization (ESI) mass spectrometry interfaced with high performance liquid chromatography (HPLC). According to the result of HPLC analysis, MGDG and DGDG were found to consist of mixtures of five and four molecular species, respectively. The galactolipids have been also analyzed to determine their fatty acid compositions, using HPLC/ESI-MS combined with in-source (or cone voltage) fragmentation. HPLC/ ESI-MS is very useful for one-step analysis of mixtures of galactolipids with a small sample quantity. Especially, the carboxylate anions produced in in-source fragmentations of the negative-ion of each component separated by HPLC provide valuable information on the composition of its fatty acyl chains.

• KIEAE Journal
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• v.4 no.4
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• pp.3-10
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• 2004

If move in in the new apartment usually, do that hundreds hazardous substance among air floats and is broken-down. In the case of the floor, organic compound turns in adhesives that is bitter when attach the reinforcement floor and material lumber and hazardous substance is exhausted much wallpaper and concrete. Therefore, to reveal maximum this research to apply on interior of building to live function of charcoal, at non combustible material two faces that can promise safety from fire, strong and satisfy light performance, and it is thing about development of sheathing that use recycling material for barren land of multi-function and surface treatment of charcoal board as well as can keep healthy indoor environment.

• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.161-161
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• 2017

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2005.06a
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• pp.540-548
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• 2005

• Proceedings of the Mineralogical Society of Korea Conference
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• 2002.05a
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• pp.58-59
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• 2002

• Journal of environmental and Sanitary engineering
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• v.9 no.2
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• pp.58-62
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• 1994

Until 1960 water pollution was caused by virus but now in according to industrial develop cent it has been continued environmental pollution by surfactant heavy metal, and hazardous chemical substance erst.. It is possible to Prevent contamination by virus owing to development of antibiotic but not to dissolve basely health effect by hazardous chemical substances because it takes very long time, about 5-40 years, average 20 years, in appearing a disease after exposure by then To maintain human life for 75 years, it need 55 ton of water. In the experiment of Public Health Institute, Tokyo, they reported that over 200 chemical substances can be detected in case of human being to drink tap water of Tokyo(1989) continuously. In our country, elevation of life style and development of industry result in increase of water use and overappreciation of pesticides in farm land a(sects drinking water quality. We estimated analytical item of drinking water hygienically by dividing into 5 groups such as physical effect item health hazardous inorganic item and health hazardous organic item ect. based on hygienic purpose.

• Environmental Engineering Research
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• v.15 no.3
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• pp.163-166
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• 2010

Pulp and paper mill wastewater has been treated by biological treatment, but the secondary effluent still contains high lignin, chemical oxygen demand, color and total dissolved solids. Tertiary treatment by land application, referred to as 'Project Green,' has been implemented to treat such high quantities of undesirable matters. The impacts of seepage from Project Green diffusing into receiving streams on the water quality and fish pen aquaculture were studied via the integration of technical and social approaches. The determination of the water quality was performed for 13 sampling stations along the receiving stream, including the Chot stream, Chot lagoon and the Pong River. The water quality was generally at normal levels, with the exception of total dissolved solids. The levels of matter were higher at the Chot stream, but became more diluted at the Chot lagoon and the Pong River, respectively. The social approach was conducted through the voluntary participation of the villagers as research assistants for the fish aquaculture study. Fish could grow at three fish pens within the study sites at the location of Project Green, the Chot lagoon and the Pong River. Fish growth at the Chot lagoon was better at the site of Project Green and the Pong River. The integration of technical and social approaches was a meaningful tool not only for the technical feasibility but in helping to solve the conflict between the community and industry.

• Analytical Science and Technology
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• v.14 no.5
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• pp.392-399
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• 2001

The analysis of n-butylbenzene and 1,2-dibromo-3-chloropropane (DBCP) as volatile organic compounds in biota samples was performed by gas chromatography/mass spectrometry-selected ion monitoring mode. The target compounds, n-butylbenzene and DBCP, in biota samples were extracted by headspace solid phase microextraction (SPME) with $100{\mu}m$ polydimethyl siloxane (PDMS) fiber and purge & trap method. The extraction recoveries of these compounds obtained by SPME was 85.8% for n-butylbenzene and 92.4% for DBCP, respectively. Each value of method detection limit were $0.15{\mu}g/kg$ and $0.05{\mu}g/kg$, respectively. While in the case of purge & trap method, the extraction recovery was 115.2% for n-butylbenzene, 80.9% for DBCP and method detection limit were $0.04{\mu}g/kg$ and $0.70{\mu}g/kg$, respectively. The extraction yields and detection limits of these compounds obtained by purge & trap were equivalent to those by SPME.