• Title/Summary/Keyword: Environmental Disaster

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Study of the Intergrated Management for Business Handling Hazardous Chemicals (유해화학물질 취급사업장 통합관리 연구)

  • Kim, Sungbum;Park, Choonhwa;Ahn, Seungyoung;Kim, Jungmin;Chun, Kwangsoo;Noh, Hye Ran;Seok, Gwang Seol;Yoon, Yi
    • Journal of the Society of Disaster Information
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    • v.9 no.3
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    • pp.259-265
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    • 2013
  • In Toxic Chemicals Control Act chemicals manufacture, import, sell, use, emission handling throughout the process leading monitoring system is based on. This is to prevent illegal distribution of chemicals, proper management is derived. However, monitoring of check the system vary sector, inspection agencies Environmental office & local government are divided. For this reason, the sharing of information & business hard to maintain the connectivity. chemical handling overall management status for the comprehensive & systematic analyzes. This should establish measures to improve business management.

Analysis of Vulnerability of Emergency Transport Service for Flooded Area (침수피해지역의 응급이송서비스 취약성 분석)

  • Lee, Yoon-Ha;Hong, Won-Hwa;Lee, Ji-Soo;Choi, Jun-Ho
    • Fire Science and Engineering
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    • v.32 no.4
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    • pp.122-130
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    • 2018
  • Recent urbanization, population densification, and the impact of global climate change are causing disasters to become larger and more complex. Meanwhile, in Korea, there is an emphasis on preventing, restoring, and recovering from disasters. However, disaster medical care, which is absolutely necessary to maintain life in a disaster, is being ignored. Therefore, in this study, we selected Seoul as the study area where flood damage is frequent and underground housing is densely populated. Assuming underground housing in the immersion history area as the emergency patient site, transfer distance and transfer time were analyzed. This study considered both accessibility to emergency medical facilities and disaster sites and accessibility from emergency services to disaster sites. Therefore, it seems to be meaningful as basic data for the improvement of emergency medical services.

Assessment of Soil Erosion Loss by Using RUSLE and GIS in the Bagmati Basin of Nepal

  • Bastola, Shiksha;Seong, Yeon Jeong;Lee, Sang Hyup;Shin, Yongchul;Jung, Younghun
    • Journal of the Korean GEO-environmental Society
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    • v.20 no.3
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    • pp.5-14
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    • 2019
  • This study attempted to study the soil erosion dynamic in the Bagmati Basin of Nepal. In this study, an inclusive methodology that combines Revised Universal Soil Loss Equation (RUSLE) and GIS techniques was adopted to determine the distribution of soil loss in the study basin. As well, this study attempts to study the intensity of soil erosion in the seven different land use patterns in the Bagmati Basin. Soil loss is an associated phenomenon of hydrologic cycle and this dynamic phenomenon possesses threats to sustainability of basin hydrology, agriculture system, hydraulic structures in operation and overall ecosystem in a long run. Soil conservation works, and various planning and design of watersheds works demands quantification of soil loss. The results of the study in Bagmati Basin shows the total annual soil loss in the basin is 22.93 million tons with an average rate of 75.83T/ha/yr. The computed soil loss risk was divided into five classes from tolerable to severe and the spatial pattern was mapped for easy interpretation. Also, evaluation of soil loss in different land use categories shows barren area has highest rate of soil loss followed by agriculture area. This is a preliminary work and provides erosion risk scenario in the basin. The study can be further used for strategic planning of land use and hydrologic conservation works in a basin.

Characteristics of Monthly Maximum Wind Speed of Typhoons Affecting the Korean Peninsula - Typhoon RUSA, MAEMI, KOMPASU, and BOLAVEN - (한반도 영향 태풍의 월별 최대풍 특징과 사례 연구 - 태풍 루사·매미·곤파스·볼라벤을 대상으로 -)

  • Na, Hana;Jung, Woo-Sik
    • Journal of Environmental Science International
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    • v.28 no.4
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    • pp.441-454
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    • 2019
  • The present study analyzes the characteristics of 43 typhoons that affected the Korean Peninsula between 2002 and 2015. The analysis was based on 3-second gust measurements, which is the maximum wind speed relevant for typhoon disaster prevention, using a typhoon disaster prevention model. And the distribution and characteristics of the 3-second gusts of four typhoons, RUSA, MAEMI, KOMPASU, and BOLAVEN that caused great damage, were also analyzed. The analysis show that between May and October during which typhoons affected the Korean Peninsula, the month with the highest frequency was August(13 times), followed by July and September with 12 occurrences each. Furthermore, the 3-second gust was strongest at 21.2 m/s in September, followed by 19.6 m/s in August. These results show that the Korean Peninsula was most frequently affected by typhoons in August and September, and the 3-second gusts were also the strongest during these two months. Typhoons MAEMI and KOMPASU showed distribution of strong 3-second gusts in the right area of the typhoon path, whereas typhoons RUSA and BOLAVEN showed strong 3-second gusts over the entire Korean Peninsula. Moreover, 3-second gusts amount of the ratio of 0.7 % in case of RUSA, 0.8 % at MAEMI, 3.3 % at KOMPASU, and 21.8 % at BOLAVEN showed as "very strong", based on the typhoon intensity classification criteria of the Korea Meteorological Administration. Based on the results of this study, a database was built with the frequencies of the monthly typhoons and 3-second gust data for all typhoons that affected the Korean Peninsula, which could be used as the basic data for developing a typhoon disaster prevention system.

Long-Term Wildfire Reconstruction: In Need of Focused and Dedicated Pre-Planning Efforts

  • Harris, William S.;Choi, Jin Ouk;Lim, Jaewon;Lee, Yong-Cheol
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.923-928
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    • 2022
  • Wildfire disasters in the United States impact lives and livelihoods by destroying private homes, businesses, community facilities, and infrastructure. Disaster victims suffer from damaged houses, inadequate shelters, inoperable civil infrastructure, and homelessness coupled with long-term recovery and reconstruction processes. Cities and their neighboring communities require an enormous commitment for a full recovery for as long as disaster recovery processes last. State, county, and municipal governments inherently have the responsibility to establish and provide governance and public services for the benefit and well being of community members. Municipal governments' comprehensive and emergency response plans are the artifacts of planning efforts that guide accomplishing those duties. Typically these plans include preparation and response to natural disasters, including wildfires. The standard wildfire planning includes and outlines (1) a wildfire hazard assessment, (2) response approaches to prevent human injury and minimize damage to physical property, and (3) near- and long-term recovery and reconstruction efforts. There is often a high level of detail in the assessment section, but the level of detail and specificity significantly lessons to general approaches in the long-term recovery subsection. This paper aims to document the extent of wildfire preparedness at the county level in general, focusing on the long-term recovery subsections of municipal plans. Based on the identified challenges, the researchers provide recommendations for better longer-term recovery and reconstruction opportunities: 1) building permit requirements, 2) exploration of the use of modular construction, 3) address through relief from legislative requirements, and 4) early, simple, funding, and the aid application process.

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A Study on the Analysis of Chemical Leakage Accidents Using CFD Simulation (CFD 시뮬레이션을 활용한 화학물질 누출사고 분석에 관한 연구)

  • Su-Bin An;Chang-Bong Jang;Kyung-Su Lee;Hye-Ok Kwon
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.33 no.3
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    • pp.346-354
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    • 2023
  • Objectives: Chemical accidents cause extensive human and environmental damage. Therefore, it is important to prepare measures to prevent their recurrence and minimize future damage through accident investigation. To this end, it is necessary to identify the accident occurrence process and analyze the extent of damage. In this study, the development process and damage range of actual chemical leakage accidents were analyzed using CFD. Methods: For application to actual chemical leakage accidents using FLACS codes specialized for chemical dispersion simulation among CFD codes, release rate calculation and 3D geometry were created, and scenarios for simulation were derived. Results: The development process of the accident and the dispersion behavior of materials were analyzed considering the influencing factors at the time of the accident. In addition, to confirm the validity of the results, we compared the results of the actual damage impact investigation and the simulation analysis results. As a result, both showed similar damage impact ranges. Conclusions: The FLACS code allows the detailed analysis of the simulated dispersion process and concentration of substances similar to real ones. Therefore, it is judged that the analysis method using CFD simulation can be usefully applied as a chemical accident investigation technique.

An alternative upstream method for the Zhelamuqing tailings impoundment construction of a Copper Mine in China

  • Wei, Zuoan;Chen, Yulong;Yin, Guangzhi;Yang, Yonghao;Shu, Weimin
    • Geomechanics and Engineering
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    • v.19 no.5
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    • pp.383-392
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    • 2019
  • How to safely and economically dispose mining tailings is a challenge to mine operators. This paper presents an alternative upstream method for tailings dam construction, termed as the template construction method (TCM), which has been successfully implemented at Zhelamuqing tailings impoundment since 2004. By the beginning of 2015, the tailings dam wall had reached 95 m in height for the 46 upstream raises, with the total height of the dam including the starter dyke being 128 m. The proposed TCM is relatively simple and cost-effective and provides a good way for constructing rapidly raising tailings dam based on this case.

The Impact of Platform Delivery Workers' Safety Awareness on Serious Accidents Impact Studies (플랫폼 배달종사자의 안전인식이 중대재해에 미치는 영향 연구)

  • Lee Jonghyun;Jung Hyungwon
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.19 no.4
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    • pp.163-177
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    • 2023
  • In this study, delivery workers were regarded as workers and industrial accident and serious accident prevention were studied. As a result of the study, first, it was confirmed that awareness of safety guidelines has an effect on disaster prevention and is related to reducing serious accidents. Second, among the forms of organizational culture, rational culture was shown to have a positive impact on serious accidents. Third, the moderating effect of organizational culture Rational culture, a sub-concept, was found to have a moderating effect on serious accidents. Fourth, according to the opinions of workers for disaster prevention of delivery workers, it was classified into policy part, environmental part, and worker's duty part, and the necessity of strengthening safety education and strong regulation was suggested in the policy part.