• The Safety technology
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• no.192
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• pp.8-12
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• 2013

박근혜 대통령은 지난 11월 12일 열린 소방의 날 기념식 행사에서 최근의 사고현황에 심각한 우려를 표명하며, 이를 개선하기 위해 전력을 다하겠다고 천명했다. 당시 박 대통령은 "최근 빈발하고 있는 유해화학물질 누출사고를 비롯해 각종 재해에서 보듯이, 현대사회의 재난은 한 번 발생하면 피해규모가 매우 크고 돌이키기 힘든 고통을 초래하는 경우가 많다"면서 "국민 안전을 더욱 튼튼하게 지키는 안전관리 시스템을 구축해 나갈 것이라고 밝혔다. 이처럼 아직도 우리나라의 안전수준은 대통령이 우려를 표명할 정도로 심각성을 드러내고 있다. 해가 지나면서 조금씩 개선되는 양상을 보이고는 있지만, 선진국 수준의 안전문화는 여전히 우리에게 먼 얘기라고 할 수 있다. 올해 발생했던 수많은 재해와 사건사고가 이를 증명한다. 희망찬 기대를 안고 시작했던 2013년이었지만, 다양한 사건사고로 인해 연일 '안전불감증'이라는 단어가 끊임없이 회자됐다. 우리 안전문화의 현주소를 되짚어보고, 이것이 안전 선진국으로 가는 계기가 되길 바라면서 부실한 안전관리, 미흡한 안전의식이 원인이 되어 발생했던 2013년도의 주요 재해를 모아봤다.

• Journal of the Korean Institute of Gas
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• v.11 no.4
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• pp.7-11
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• 2007

There has been a report of fire and explosion accident in regenerated thermal oxidizer (RTO). This paper was to investigate accident causes of RTO in the resin re-treatment process. The experiments carried out physicochemical properties and thermal stability analyses by using flash point tester, flammable range apparatus, autoignition tester, GC/MSD and thermal screening unit. We inferred causes of fire and explosion from the regenerated thermal oxidizer to prevent an accident of its process.

• Journal of the Korean Institute of Gas
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• v.4 no.2 s.10
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• pp.15-19
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• 2000

This study compared and analyzed existing research on dispersion models and selected the EPA's Industrial Source Complex(ISC) model as a model suitable for the domestic petrochemical industry for 3-dimensional simulation and developed a simulation system applying. 3-dimensional algorithm with this ISC dispersion model as a basis As a result of this study, the 3D dispersion model based on ISC can help estimate a exact accident damage zone, make a emergency plan and control a ignition source.

• Journal of the Korean Society of Industry Convergence
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• v.26 no.5
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• pp.765-774
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• 2023

The Ministry of Employment and Labor implemented the process safety management(PSM) system from 1996 to prevent major industrial accidents caused by chemical substances, but the number of accidents did not drastically decrease. Even in workplaces with excellent PSM ratings, large-scale chemical accidents still occur due to non-compliance with safety work procedures and insufficient safety measures during maintenance and other work. Accordingly, the chemical accident risk warning system was introduced in 2014 to supplement the PSM system and prevent accidents that may occur during regular or unexpected maintenance and repair work. In the meantime, changes in the safety management system have been checked since the introduction of the chemical accident risk warning system at chemical handling workplaces, and based on the results, a plan for upgrading this system has been proposed. The effect of the CARW system was found to directly prevent accidents through wired and on-site consulting and post-management at the workplace and indirectly contribute to the establishment of a safety and health management system at the workplace, such as improving safety culture awareness.

• Journal of the Korean Applied Science and Technology
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• v.36 no.4
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• pp.1080-1087
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• 2019

For a risk analysis in a chemical process, it is important to reflect correctly the characteristic properties of the target process. In this study, computational fluid dynamics (CFD) was adopted for the advanced risk analysis in a residual hydro desulfurization (RHDS) process by considering operation condition, layout of instruments and facilities, atmospheric condition, and wind direction. Release and explosion simulations for the RHDS by using FEA (Finite Element Analysis) and CFD showed the applicability of 3D scanning methods for estimation of release hole size and release amount.

• Environmental engineer
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• v.24 s.255
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• pp.20-24
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• 2007

60년의 역사를 바탕으로 'Global Leader'를 지향하고 있는 LG화학은 '차별화된 소재와 솔루션으로 고객과 함께 성장하는 세계적 기업'이라는 장래상을 가지고 경제적 이윤 창출은 물론 제품 생산 및 유통과정에 있어서의 환경.안전 리스크를 최소화하고 제품의 친환경성을 제고하며 다양한 사회공헌 활동을 통해 사회적 책임을 다하고자 노력하고 있다. 이를 위해 LG화학은 화학산업의 자발적 환경.안전.보건개선활동인 'Responsible Care'를 기반으로 환경친화기업, ISO14001, PSM, KOSHA18001 등 환경.안전.보건 경영시스템을 구축하고, 전사적 환경목표인 "오염물질 배출 'O'화"활동, 근로자와 지역주민의 건강과 안전을 확보하기 위한 사고예방활동, 에너지 절감 및 온실가스배출 감축, 친환경제품과 공정개발 등 환경.안정.보건.에너지 분야의 지속적인 개선을 위해 노력하는 한편 이동화학교실, 화학캠프 등의 사회공헌활동을 통해 자라나는 청소년들에게 화학에 대한 흥미를 북돋우고 화학의 중요성을 알려 미래 우리나라를 이끌어갈 과학인재를 육성하는데도 기여하고 있다.

• Journal of Environmental Health Sciences
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• v.47 no.2
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• pp.155-165
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• 2021

Objectives: Acute exposure to high concentrations of chemicals can occur when a chemical accident takes place. As such exposure can cause ongoing environmental pollution, such as in the soil and groundwater, there is a need for a tool that can assess health effects in the long term. The purpose of this study was assessing the health risks of residents living near a chemical accident site due to long-term exposure while considering the temporal concentration changes of the toxic chemicals leaked during the accident until their extinction in the environment using a multimedia environmental dynamics model. Methods: A health risk assessment was conducted on three cases of formaldehyde chemical accidents. In this study, health risk assessment was performed using a multimedia environmental dynamics model that considers the behavior of the atmosphere, soil, and water. In addition, the extinction period of formaldehyde in the environment was regarded as extinction in the environment when the concentration in the air and soil fell below the background concentration prior to the accident. The subjects of health risk assessment were classified into four groups according to age: 0-9 years old, 10-18 years old, 19-64 years old, and over 65 years old. Carcinogenic risk assessment by respiratory exposure and non-carcinogenic risk assessment by soil intake were conducted as well. Results: In the assessment of carcinogenic risk due to respiratory exposure, the excess carcinogenic risk did not exceed 1.0×10-6 in all three chemical accidents, so there was no health effect due to the formaldehyde chemical accident. As a result of the evaluation of non-carcinogenic risk due to soil intake, none of the three chemical accidents had a risk index of 1, so there was no health effect. For all three chemical accidents, the excess cancer risk and hazard index were the highest in the age group 0-9. Next, 10-18 years old, 65 years old or older, and 19-64 years old showed the highest risk. Conclusion: This study considers environmental changes after a chemical accident occurs and until the substance disappears from the environment. It also conducts a health risk assessment by reflecting the characteristics of the long-term persistence and concentration change over time. It is thought that it is of significance as a health risk assessment study reflecting the exposure characteristics of the accident substance for an actual chemical accident.

• Korean Chemical Engineering Research
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• v.52 no.6
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• pp.736-742
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• 2014

If an accident occurs at work places that handle 'the accident preparedness substances', it causes more property damage and casualties than accidents of normal chemical substances. Even though various systems and regulations have been operated in order to prevent accidents, techniques for reducing and removing human error, which is one of the main reasons of accidents, are still inadequate. In this paper, hazardous work digitization, potential hazard verification, and work evaluation based on domestic technical guidelines have been performed through a case study of the accident of hydrofluoric acid leakage in Gumi in September 2012, and development of a new risk mapping method has been studied to supplement existing systems.

• Journal of the Korean Institute of Gas
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• v.11 no.2 s.35
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• pp.60-64
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• 2007

Chemical Process industry in Korea has over 30 year's of history and is likely to face potential incidents. The traditional risk analysis and control system in Chemical Process industry focuses on mechanical defects, overlooking the human performance control. Although development of automation technology and controlling technology was necessary, human decision factor is essential to preventing accidents in the Chemical Process. Almost all serious accidents take place when inappropriate humanperformance and mechanical defects of safety equipments simultaneously occurs. The AHRA(Advanced Human Reliability Analyzer) software has been developed to collect failure data and analyze human error probability (Reliability) in Chemical Process Industry in Korea. This paper describes the HRA analysis result of PIF(Performance Influencing Factor) evaluation, HEP(Human Error Probability) and root cause of accidents by applying a Chemical Process Industry related accident data. This analysis result should present a scheme that, by controlling human error factor other than putting safety management funds into the machinery in plants, can reduce cost and maximize the safety in Chemical Process Industry.

• Fire Science and Engineering
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• v.32 no.2
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• pp.118-129
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• 2018

This study analyzed the recent serious disaster cases of chemical extinguishing agent poisoning and suffocation investigated by KOSHA and proposed the safe use of chemical substances, including the chemical extinguishing agent. An analysis of the statistical figures an increase in the number and variations of chemical poisoning and suffocation cases in industry between 2011~2016 increased. Unlike other physical accidents, chemical accidents are very high in severity and it is difficult to identify the chemical hazard and risk. To prevent chemical disasters, it is essential to develop and use an easy chemical risk assessment tool. For the safe use of chemical substances, in which it is difficult to carry out hazard identification and risk assessments, this thesis presents the useful chemical recognition and risk assessment tools, CHEM-i and CHARM developed by KOSHA.