• 한국산업보건학회지
• /
• 제25권1호
• /
• pp.45-57
• /
• 2015

Objectives: This study aims to compare the physicochemical characteristics, toxicological data with Occupational Exposure Limits (OELs) of chemicals under the Occupational Safety and Health Act(OSHA) regulated by the Ministry of Employment and Labor of Korea. Methods: Information on chemicals which have OELs on physicochemical characteristics and toxicological data was collected using Material Safety Data Sheet(MSDS) from Korea Occupational Safety and Health Agency(KOSHA) and the Korea Information System for Chemical Safety Management(KISChem) in 2014. Statistical analyses including correlation and simple regression were performed to compare the OELs with chemical characteristics including molecular weight, boiling point, odor threshold, vapor pressure, vapor density, solubility and octanol-water partition coefficient(OWPC) and toxicological data such as median lethal dose($LD_{50}$) and median lethal concentration($LC_{50}$). Results: A total of 656 chemicals have OELs under OSHA in Korea. The numbers of chemicals which have eight-hour time weighted average(TWA) and short term exposure limits(STEL) are 618 and 190, respectively. TWA was significantly correlated with boiling point and STEL was only correlated with vapor pressure among physicochemical characteristics. Solubility and OWPC between "skin" and "no skin" substances which indicate skin penetration were not significantly different. Both $LD_{50}$ and $LC_{50}$ were correlated with TWA, while the $LC_{50}$ was not with STEL. As health indicators, health rating and Emergency Response Planning Guidelines(ERPG) rating as recommended by the National Fire Protection Association(NFPA) and American Industrial Hygiene Association(AIHA) were associated with OELs and reflect the chemical hazards. Conclusions: We found relationships between OEL and chemical information including physicochemical characteristics and toxicological data. The study has an important meaning for understanding present regulatory OELs.

• 신재생에너지
• /
• 제19권3호
• /
• pp.22-33
• /
• 2023

The number of fire and explosion accidents caused by pyrolysis oil and gas at waste plastic pyrolysis plants is increasing, but accident status and safety conditions have not been clearly identified. Therefore, the aim of the study was to identify the risks of the waste plastic pyrolysis process and suggest appropriate safety management measures. We collected information on 19 cases of fire and explosion accidents that occurred between 2010 and 2021 at 26 waste plastic pyrolysis plants using the Korea Occupational Safety and Health Agency (KOSHA) database and media reports. The mechanical, managerial, personnel-related, and environmental problems within a plant and problems related to government agencies and the design, manufacturing, and installation companies involved with pyrolysis equipment were analyzed using the 4Ms of Machines, Management, Man, and Media, as well as the System-Theoretic Accident Model and Processes (STAMP) methodology for seven accident cases with accident investigation reports. Study findings indicate the need for establishing legal and institutional support measures for waste plastic pyrolysis plants in order to prevent fire and explosion accidents in the pyrolysis process. In addition, ensuring safety from the design and manufacturing stages of facilities is essential, as are measures that ensure systematic operations after the installation of safety devices.

• Safety and Health at Work
• /
• 제10권3호
• /
• pp.305-313
• /
• 2019

Background: The oil and gas industry is one of the riskiest industries for confined space injuries. This study aimed to understand an overall picture of the causal factors of confined space accidents through analyzing accident reports and the use of a qualitative approach. Methods: Twenty-one fatal occupational accidents were analyzed according to the Human Factors Analysis and Classification System approach. Furthermore, thirty-three semistructured interviews were conducted with employees in different roles to capture their experiences regarding the contributory factors. The content analyses of the interview transcripts were conducted using MAXQDA software. Results: Based on accident reports, the largest proportions of causal factors (77%) were attributed to the organizational and supervisory levels, with the predominant influence of the organizational process. We identified 25 contributory factors in confined space accidents that were causal factors outside of the original Human Factors Analysis and Classification System framework. Therefore, modifications were made to deal with factors outside the organization and newly explored causal factors at the organizational level. External Influences as the fifth level considered contributory factors beyond the organization including Laws, Regulations and Standards, Government Policies, Political Influences, and Economic Status categories. Moreover, Contracting/Contract Management and Emergency Management were two extra categories identified at the organizational level. Conclusions: Preventing confined space accidents requires addressing issues from the organizational to operator level and external influences beyond the organization. The recommended modifications provide a basis for accident investigation and risk analysis, which may be applicable across a broad range of industries and accident types.

• 대한인간공학회지
• /
• 제29권4호
• /
• pp.479-486
• /
• 2010

Automobile-related industries have been a few of leading ones among domestic industries reporting high rates of musculoskeletal disorders (WMSD's). In this paper, major ergonomic aspects of automobile-related works were reviewed with reference to WMSD's. According to the result, high repeatability of works with as short as 1 minute or less, awkward postures required, excessive forces, and vibrations due to power tools were drawn out as major physical factors. To eliminate or mitigate those factors - at least in automobile-related industries - ergonomic approach has tried for more than a decade. With all, however, ergonomists still seem to confront with several problems to be solved such as development of appropriate assessment tools, enhancement of work improvement activities, system establishment for continuous prevention and management of WMSD's. As lots of previous researches declared, it was concluded that ergonomic approach would collaborate with other approaches such as ndustrial medicine considering physical factors as well as psychosocial factors, and that the necessity of an integrated Occupational Safety and Health Management System(OHSMS) was mentioned.

• 대한안전경영과학회지
• /
• 제6권1호
• /
• pp.11-23
• /
• 2004

The modem industrial society is developing while growing more diverse and gigantic. Accordingly, occupational injuries or accidents can be caused in various situations, not just in the limited range of workplaces but also in the surroundings, and interest has increased in the prevention of occupational accidents with respect to occupational health and safety, and environment. Thus, this thesis will consider 4MlE (Man, Machine, Method, Material, Environment) as the fundamental causes of accidents and introduce a model of system in which the output of the process control system is replaced by accidents with its input by 4M1E. Furthermore, it will demonstrate how occupational hazardousness can be measured, whereby it can also be rated, by examining the relationship between 4M1E and types of accident in terms of the categories of severity, frequency, and detectability, based on the application of the model to the framework of FMEA.

• 한국산업보건학회지
• /
• 제33권1호
• /
• pp.50-59
• /
• 2023

Objectives: This study was designed to examine the effect of risk assessment on employee safety behavior in manufacturing workplaces. In addition, this study attempted to explore factors related to the occupational safety and health system in the workplace affect the risk assessment of manufacturing sites. Methods: This research is a cross-sectional study using the Korea Occupational Safety and Health Agency's 2018 Occupational Safety and Health data. The sample for study is 1,967 manufacturing workplaces. Data were analyzed using descriptive statistics, t-test, ANOVA, chi-square test, and hierarchical multiple regression analysis using SPSS (ver.25.0). Results: As a result of the multiple hierarchical regression analysis, it was found that risk assessment had an effect on employee safety behavior (t=4.435, p=<.001). Furthermore, the size of the workplace affected employee safety behavior (t=2.494, p=<.001). In addition, the presence of safety and health management organizations affected employee safety behavior (t=4.301, p=<.001). The factors of the safety and health organization (𝑥²=35.245, p=<.001), the occupational safety and health committee (𝑥²=149.440, p=<.001), and the supervisor (𝑥²=16.472, p=<.001) were identified as factors that increased the possibility of risk assessment in the manufacturing workplaces. Conclusions: In this study, it was found that risk assessment is a factor that increases the level of workers' safety behavior in manufacturing workplaces. Therefore, it is necessary to provide institutional support for activating risk assessment at manufacturing workplaces.

• 산업경영시스템학회지
• /
• 제24권69호
• /
• pp.87-92
• /
• 2001

A significant number of all reported accidents in Korea involved education and training Based on the Labor Ministry data, statistics, show the education cause was directly involved in 38% of major accidents, Since safety managers have in charge of safety education at the factory, occupational safety curriculum must be studied to train safety manager effectively. In this study an analysis on relative importance of industrial safety curriculum for a good safety manager was performed by Analytic Hierarchy Process(AHP) The results showed that relative importance of industrial safety curriculum by AHP was safety management(w=0.240) ergonomics and system safety(w=0.201) construction safety(w=0.182) mechanic safety(w=0.139) electronic safety(w=0.134) and chemical safety(w=0.104) in order. The results could be used for industrial safety curriculum planning in university and safety organization such as Korea Occupational safety and Health Agency.

• 한국산업보건학회지
• /
• 제34권1호
• /
• pp.8-13
• /
• 2024

Objectives: To evaluate the levels of exposure to organic compounds during aircraft disinfection and seat cover replacement operations. Methods: According to the working schedule, organic compounds were collected using activated carbon tubes and then analyzed by GC/FID and GC/MSD. Results: In the disinfection task, the main substances listed in the material safety data sheet (MSDS) of the disinfectant were not detected. However, 1-bromopropane, which had been used in the previous task of replacing seat covers, was detected at a level of 2.37 ppm at the measurement time. During seat cover replacement, bonding workers were exposed to 2.48 ppm on an eight-hour time-weighted average, and seat cover replacement workers were exposed to 0.22 ppm. Conclusions: It is necessary to ensure the reliability of MSDS. A work environment management system is necessary when different companies alternate working in the same place.

• 대한안전경영과학회지
• /
• 제25권3호
• /
• pp.55-62
• /
• 2023

Public institutions have a responsibility to ensure the safety of their employees and the public. One way to do this is to implement a systematic safety inspection system based on risk assessments and continuous improvements. This study developed a systematic safety inspection system for public institutions that are ordered construction projects. The proposed system in this study consists of a three-step process: (1) developing safety grade evaluation tables, (2) preparing and conducting safety inspections, and (3) evaluating and improving safety management grades. The first step is to develop safety grade evaluation tables by analysis and diagnosis of the construction site's work type, disaster statistics, and related laws. The second step is to conduct safety inspections using the developed evaluation tables. The third step is to determine the safety management grade based on the results of the safety inspection, and to improve risk factors found during the safety evaluation. The proposed system was implemented in highway construction projects carried out by public institutions. The results showed that the proposed system has two major effects: (1) reducing accident-related deaths and injuries, (2) improving safety management levels by continuous evaluation and improvement. The proposed system can be utilized in construction projects ordered by public institutions to improve the level of occupational safety and health.

• 융합정보논문지
• /
• 제11권7호
• /
• pp.84-90
• /
• 2021

국내 기업에서 발생하는 사고의 98.8%가 50인 미만의 소규모 사업장에 편중되어 있다. 따라서 본 연구에서는 산업안전 및 시설 관련 법령과 활발하게 활용되고 있는 안전관리시스템을 상호 비교분석하여 중소기업에서 이행할 수 있는 재난안전 프로그램을 개발하였다. 재난안전 프로그램에는 적용범위, 조직의 구성, 위험성평가, 비상대응체계, 교육 및 훈련, 안전용품 구비 및 프로그램 평가 등의 내용을 포함하였으며, 각 항목별로 작성방법과 절차를 상세하게 수록하였다. 또한 재난안전 프로그램 운용 시 유의해야 할 사항과 운영 전략을 제시하였다. 이후 연구결과를 산업안전보건법에 도입하는 방안을 제언하였다.