• Title/Summary/Keyword: Safety Assessment Regulations

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Assessment of Noise Exposure and Hearing Loss Among Workers in Textile Mill (Thamine), Myanmar: A Cross-Sectional Study

  • Zaw, Aung K.;Myat, Aung M.;Thandar, Mya;Htun, Ye M.;Aung, Than H.;Tun, Kyaw M.;Han, Zaw M.
    • Safety and Health at Work
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    • v.11 no.2
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    • pp.199-206
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    • 2020
  • Background: In a wide range of industries, noise-induced hearing loss remains one of the most prevalent occupational problems. This study aimed to assess the noise exposure level and associated factors of hearing loss among textile workers in Yangon Region, Myanmar. Methods: A cross-sectional study was conducted at a Textile mill (Thamine), Yangon Region, from April to December 2018. In total, 226 workers who were randomly selected from 3 weaving sections participated in face-to-face interviews using a structured questionnaire. A digital sound level meter and pure-tone audiometer were used for the assessment of noise exposure level and hearing loss, respectively. Logistic regression analysis was performed to assess the associated factors of hearing loss. Results: In total workers, 66.4% were exposed to ≥85 dB(A) of noise exposure, and the prevalence of hearing loss was 25.7%. Age ≥35 years, below high school education, hearing difficulty, tinnitus, hypertension, > 9 years of service duration in a textile mill were positively associated with hearing loss. After adjusting confounding factors, age ≥35 years (adjusted odds ratio = 6.90, 95% confidence interval = 3.45-13.82) and tinnitus (adjusted odds ratio = 2.88, 95% confidence interval = 1.13-7.37) were persistently associated with hearing loss. Conclusion: Providing occupational hazard education and enforcement of occupational safety regulations should be taken to decrease the noise exposure level. The regular audiometry test should be conducted for assessment of hearing threshold shift. The employer needs to implement a hearing conservation program in workplace when noise exposure reaches or exceeds 85 dB(A) for 8 hours.

Recommendation of an Occupational Exposure Limit and Legal Control Following an Acute Hepatotoxicity Incident from HCFC-123 (HCFC-123의 급성 독성간질환 발생 사례에 따른 노출기준 및 법 관리 필요성 권고)

  • Lee, Kwon Seob;Jo, Ji hoon;Choi, Bo Kyung;Lee, Hye Lim;Byeon, Sang Hoon
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.28 no.1
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    • pp.80-90
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    • 2018
  • Objectives: This study was performed to propose a domestic occupational exposure limit(OEL) following a health hazard assessment, calculation of a non-carcinogenicity reference concentration worker($RfC_{worker}$) value, and examination of international agencies' exposure limits. It also recommends legal management within the Occupational Safety and Health Act for HCFC-123, which caused an acute hepatotoxicity incident. Methods: An acute hepatotoxicity incident due to the fire extinguishing agent HCFC-123 was investigated. Toxicological hazard and health hazard classifications were examined and a non-carcinogenicity $RfC_{worker}$ value was calculated for HCFC-123. An OEL and the necessity of legal management were recommended as well. Results and Conclusions: An OEL for HCFC-123 of 10 ppm($62.5mg/m^3$), which considered the $RfC_{worker}$ value, 5.56 ppm, produced in dose-response assessment and the exposure level of 19.1-20.9 ppm measured as an eight-hour TWA(time-weighted average) in the incident place, is recommended. HCFC-123 is urged to be included as a chemical requiring legal management in the Occupational Safety and Health Regulations. In addition, it is recommended that a peak exposure of ACGIH be adopted in the Notice of the Ministry of Employment and Labor.

A Study on the Fire Life Safety Improvement in Deteriorated Buildings - Focus on the Jongro Goshiwon Fire Analysis (노후 건축물의 화재인명안전 개선방안에 관한 연구 - 종로 고시원 화재사고의 분석을 중심으로 -)

  • Choi, Doo Chan
    • Fire Science and Engineering
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    • v.32 no.6
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    • pp.63-68
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    • 2018
  • In this study, to recognize the limitations and problems of fire safety in existing deteriorated buildings in Korea, and to analyze the fire case of Jongno Gooshiwon, the fire life safety assessment was performed and analyzed through fire egress simulation and analyzed the domestic and foreign related codes and regulations. In order to secure the fire safety of existing deteriorated buildings, it is necessary to adopt the systematic introduction and application of fire safety performance evaluation of buildings based on quantitative and objective indicated method for performance maintenance and management for fire life safety.

A Study on Safety Assessment of the Evacuation at the Large-scale Amusement Facilities (대규모 위락시설의 피난안전성능 평가에 관한 연구)

  • Park, Bong-Rae;Kong, Ha-Sung
    • Fire Science and Engineering
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    • v.23 no.4
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    • pp.165-173
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    • 2009
  • As the Performance Based Fire Protection Design is legislated, studies on a fire and evacuation are actively in progress. The Performance Based Fire Protection Design should be developed toward enlarging the Life safety. In addition, the Performance Based Fire Protection Design shall not merely review the aspects of fire fighting but it shall also include regulations pertaining to evacuation stipulated in laws and regulations for buildings. This study performed an evacuation time prediction based on OO Night Club, one of the multiplex use facilities located in Gwang-ju Metropolitan City in order to suggest as a referential data for the Performance Based Fire Protection Design implementation. To do this, I investigated domestic and foreign regulations and research papers related to evacuation and went to visit the actual site and collected materials. The collected data was then used as ones to input in Simulex, an evacuation program to measure evacuation time. The collected data was then used as data to input in Simulex, an evacuation program to measure evacuation time. Through this particular research and results, the study was able to suggest a few concerning areas.

Review on the Integrity Evaluation and Maintenance of Wall-Thinned Pipe (감육배관의 건전성평가 및 정비 관련 기술기준 고찰)

  • Lee, Sung Ho;Lee, Yo Seob;Kim, Hong Deok;Lee, Kyoung Soo;Hwang, Kyeong Mo
    • Transactions of the Korean Society of Pressure Vessels and Piping
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    • v.11 no.2
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    • pp.51-60
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    • 2015
  • Local wall thinning and integrity degradation caused by several mechanisms, such as flow accelerated corrosion, cavitation, flashing and/or liquid droplet impingement, is a main concern in secondary steam cycle piping system of nuclear power plants in terms of safety and operability. Thinned pipe management program (TPMP) has being developed and optimized to reduce the possibility of unplanned shutdown and/or power reduction due to pipe failure caused by wall thinning. In this paper, newest technologies, standards and regulations related to the integrity assessment, repair and replacement of thinned pipe component are reviewed. And technical improvement items in TPMP to secure the reliability and effectiveness are also presented.

Applications of Capillary Electrophoresis and Microchip Capillary Electrophoresis for Detection of Genetically Modified Organisms

  • Guo, Longhua;Qiu, Bin;Xiao, Xueyang;Chen, Guonan
    • Food Science and Biotechnology
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    • v.18 no.4
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    • pp.823-832
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    • 2009
  • In recent years, special concerns have been raised about the safety assessment of foods and food ingredients derived from genetically modified organisms (GMOs). A growing number of countries establish regulations and laws for GMOs in order to allow consumers an informed choice. In this case, a lot of methods have been developed for the detection of GMOs. However, the reproducibility among methods and laboratories is still a problem. Consequently, it is still in great demand for more effective methods. In comparison with the gel electrophoresis, the capillary electrophoresis (CE) technology has some unique advantages, such as high resolution efficiency and less time consumption. Therefore, some CE-based methods have been developed for the detection of GMOs in recent years. All kinds of CE detection methods, such as ultraviolet (UV), laser induced fluorescence (LIF), and chemiluminescence (CL) detection, have been used for GMOs detection. Microchip capillary electrophoresis (MCE) methods have also been used for GMOs detection and they have shown some unique advantages.

A Study on the Fire Evacuation Assessment Considering Occupied Environment Variation in Existing Buildings (기존 건축물의 사용승인허가 전·후 거주환경을 고려한 화재피난성능평가 연구)

  • Kim, Hak Kyung;Choi, Doo Chan;Kim, In Tae;Kim, Hee Moon;Sim, Hye In
    • Fire Science and Engineering
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    • v.30 no.6
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    • pp.105-110
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    • 2016
  • In Korea, fire hazard and risk analysis and response management planning related to existing decrepit buildings, including interior construction and architectural layout revision, due to various occupancy purposes have not been researched or established. Therefore, regulations and technical standards that can manage and reduce fire hazards and risks based on fire hazard analysis and evaluation are required. This study was performed based on a site survey and fire evacuation assessment including performancebased analysis in 3 actual existing buildings to find the life safety issues and provide improvement recommendations.

A Study on Application of Fatigue Risk Management System for Pilot to Fly Longer Hours (장시간 체공 항공기 조종사의 피로위험관리 적용 연구)

  • Kim, Dae Ho;Lee, Jang Ryong
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.27 no.2
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    • pp.47-53
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    • 2019
  • The development of the aviation industry and the changes in the military operation mission environment are demanding more long - distance operation (long - time flight), and such a flying environment is a risk factor for fatigue - related accidents. For the aviation related organizations such as ICAO and FAA, fatigue risk management system (FRMS) are applied along with flight time restriction regulations to prevent fatigue related accidents. The most important process in FRMS is fatigue risk management. Fatigue risk management systematically manages fatigue through scientific fatigue risk data collection and fatigue risk assessment. The purpose of this study is to applicate the assessment of scientific fatigue risk management to pilots of airplanes engaged in long flight. We reviewed the current state of risk management and FRMS through previous research. We also developed fatigue risk management indicators and examined the validity of internationally recognized fatigue risk data collection methods and fatigue risk assessment tools. There are 134 mission (flight) data used for development. In order to verify the indicators, the fatigue risk score between the items was assigned through pair-wise comparison. In addition, the verify test results were normalized.

A Study on the Reasonable Estimation of Consequence of Chemical Release (화학사고 피해영향 범위의 합리적 산정방안에 대한 연구)

  • Cho, Guysun;Lim, Juntaig;Han, Jeongwoo;Baek, Eunsung;Yu, Wonjong;Park, Kyoshik
    • Journal of the Korean Institute of Gas
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    • v.24 no.5
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    • pp.20-28
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    • 2020
  • In this study, the damage impact range in the case of a hydrofluoric acid leak accident was predicted using formula calculation, impact assessment simulations, and CFD simulations, and the results were compared and analyzed with the actual environmental impact report. Formula calculation was performed by using the leak source model and diffusion model. Impact assessment simulation was performed by KORA provided by the Korean Ministry of Environment, ALOHA by the United States Ministry of Environment, and PHAST, which is relatively widely used among commercialization programs, and the STAD-CMM+program for CFD simulation. Was utilized. Considering convenience, speed, acceptability, and economics from the user's perspective, ALOHA and KORA were the most appropriate methods for predicting the impact of hydrofluoric acid leakage. In addition, the results of this study will help to reduce unnecessary regulations in the process of government policy development and optimize the investment in the safety field of the company, effectively utilizing the limited resources of the government and the company.

A Study on the Evaluation Criteria of Safety Competency of Construction Manager (건설사업관리자 선정평가에 안전역량 평가항목 적용 연구)

  • Kim, Dosu;Joh, Hyunwoo;Kim, Gwanghee;Joo, Jinkyu;Shin, Yoonseok
    • Korean Journal of Construction Engineering and Management
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    • v.21 no.5
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    • pp.46-54
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    • 2020
  • The construction industry has the most safety accidents among domestic industries. Special care must be taken because disasters in the construction industry lead to social problems caused by huge property losses and casualties. As a result of this, there is a growing awareness of disasters occurring in the construction industry, and government departments are tightening regulations on safety management. In particular, the OSHA (Occupational Safety and Health Agency) focuses on the expansion of protection targets and the clarification of responsibility in the full amendment OSHA. As a result, a study that focuses on safety management by client's responsibility is needed. In this study, the project performance capability assessment of construction project management contractors, which is being carried out with uniform assessment criteria without considering the characteristics of the construction project, is considered and all the amendments to the OSHA are considered, and the factors were derived for improvement measures.