• Title/Summary/Keyword: risk assessment

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Improvement for practical application of Risk Assessment in shipbuilding industry (조선업 위험성평가 실용을 위한 개선 방안)

  • Shin, Woonchul
    • Journal of the Korea Safety Management & Science
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    • v.16 no.3
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    • pp.273-277
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    • 2014
  • Subcontracting business than the contracting business in shipbuilding industry is a lot of hazardous job and highly accident because of highly work intensity. In order to prevent the accidents, there is a need to analyze characteristic. of shipbuilding, to apply measures of risk assessment. In this paper, I suggested an improvement of the risk assessment through the actual condition research in shipbuilding industry. In the research method, I analysed accidents occurred until 2011-2013. Carried out the actual site survey while two weeks in May 2014. As a result, 1) The main pattern were caught-in or between, fall on the high level according to analyzed accidents. 2) To apply the weight show clear of magnitude for risk assessment. 3) Risk estimation of risk assessment is desirable to be quantization by accidents analysis, and to be greater than or equal to 4 steps.

A Study on the Perception Level of Health and Safety among the Participants for Optimization of Risk Assessment in Construction Industry (건설업 위험성 평가 최적화를 위한 운영 주체간 안전보건 인식도 조사 연구)

  • Paek, Chung-Hyeun;Cho, Ur-Ryong
    • Journal of the Korea Safety Management & Science
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    • v.17 no.3
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    • pp.23-32
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    • 2015
  • Recently, the Ministry of Labour, published clause 2 of Article 41 (Risk Assessment) of the Act "Industrial Safety and Health" dated 12 June 2013 in connection with continuous increase of accidents at construction sites in order to prevent accidents in industrial safety and health in new construction in accordance with the risk assessment on construction projects are realized after March 13, 2014. In this paper, positive method of calculating risk discussed by performing research the awareness of general contractors and sub-contractors with presenting risky situation is considered. The purpose will be a positive method of calculating risk and would be a sufficient base and give a positive direction in the development of new systems currently working in the construction and risk assessment which consider the characteristics of sufficient risk assessment system for future research.

Estimating Benchmark Dose and Permissible Intake Level Using Subchronic Toxicity Data of Aristolochia Contorta

  • Lee, Hyomin;Eunkyung Yoon;Myungsil Hwang;Lee, Geunyung;Jisun Yang;Kihwa Yang;Kwangsup Kil
    • Proceedings of the Korean Society of Toxicology Conference
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    • pp.198-198
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    • 2002
  • Occurrence of Chinese Herbs Nephropathy (CHN) has been reported in young women who had taken a slimming pills containing some chinese herbs. Aristolochic acid (AA) known as a carcinogen, was suspected as the major causal factor of CHN. AA is major component of fruit of A. contorta was used in Korean Traditional Medicine.(omitted)

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A Cost-Optimization Scheme Using Security Vulnerability Measurement for Efficient Security Enhancement

  • Park, Jun-Young;Huh, Eui-Nam
    • Journal of Information Processing Systems
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    • v.16 no.1
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    • pp.61-82
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    • 2020
  • The security risk management used by some service providers is not appropriate for effective security enhancement. The reason is that the security risk management methods did not take into account the opinions of security experts, types of service, and security vulnerability-based risk assessment. Moreover, the security risk assessment method, which has a great influence on the risk treatment method in an information security risk assessment model, should be security risk assessment for fine-grained risk assessment, considering security vulnerability rather than security threat. Therefore, we proposed an improved information security risk management model and methods that consider vulnerability-based risk assessment and mitigation to enhance security controls considering limited security budget. Moreover, we can evaluate the security cost allocation strategies based on security vulnerability measurement that consider the security weight.

Methodology of Human Cancer Risk Assessment for Chemical Carcinogens (화학 발암물질에 대한 인체 암 위해성 평가)

  • Lee, Byung-Mu
    • Toxicological Research
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    • v.8 no.2
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    • pp.317-329
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    • 1992
  • Fifty chemicals are currently classified as human carcinogens based on epidemiologic and animal data. Humans are daily exposed to them from various sources of exposure via inhalation, dermal contact and oral ingestion. To reduce cancer risk to man, these human carcinogens should be appropriately regulated and monitored environmentally or biologically for routine human cancer risk assessment. A number of mathematical risk assessment models have been introduced, but any realistic and relevant model system is not available for humans. A mechanistic process for human cancer risk assessment was comprehensively reviewed and problems were also discussed. Here, a new conceptual approach using epidemiology and biological human monitoring was suggested for the most relevant method to study human cancer risk assessment.

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A Study on Fire Risk Analysis & Indexing of Buildings (건축물의 화재위험의 분석과 지수화에 관한 연구)

  • Chung, Eui-Soo;Yang, Kwang-Mo;Ha, Jeong-Ho;Kang, Kyung-Sik
    • Journal of the Korea Safety Management & Science
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    • v.10 no.4
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    • pp.93-104
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    • 2008
  • A successful fire risk assessment is depends on identification of risk, the analytical process of potential risk, on estimation of likelihood and the width and depth of consequence. Take the influence on enterprise into consideration, Fire risk assessment could carry out along the evaluation of the risk importance, the risk level and the risk acceptance. A large part of the limitation of choosing the risk assessment techniques impose restrictions on expense and time. If it is unnecessary high level risk assessment or Probabilistic Risk Assessment of buildings, in compliance with the Relative Ranking Method, Fire risk indexing and assessing is possible. As working-level technique, AHP method is useful with practical technique.

The development of CAMBRA; Updated CRA (Caries management by risk assessment (CAMBRA)의 발전; CRA 업데이트)

  • Lee, Su-Young
    • Journal of Korean society of Dental Hygiene
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    • v.21 no.4
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    • pp.321-336
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    • 2021
  • The aim of this study was to investigate the caries management by risk assessment (CAMBRA) development process and the latest updated caries risk assessment for the domestic settlement of the CAMBRA program and the activation of dental clinics. A system for CAMBRA was published in California Dental Association (CDA) in 2007. To investigate whether CAMBRA can be successfully implemented outside a university setting, a practice-based research network (PBRN) was created in the San Francisco Bay Area. Based on the CAMBRA-PRAN clinical studies, the caries risk assessment (CRA) tool was updated for patients aged 6 through adults in 2019. The CAMBRA system is expected to be widely and actively used in the dental field in Korea to contribute to oral health care.

Analysis on the Risk-Based Screening Levels Determined by Various Risk Assessment Tools (III): Proposed Methodology for Lead Risk Assessment in Korea (다양한 위해성평가 방법에 따라 도출한 토양오염 판정기준의 차이에 관한 연구(III): 우리나라 납 오염 위해성평가 방법 제안)

  • Jung, Jae-Woong;Nam, Kyoungphile
    • Journal of Soil and Groundwater Environment
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    • v.20 no.6
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    • pp.1-7
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    • 2015
  • The most critical health effect of lead exposure is the neurodevelopmental effect to children caused by the increased blood lead level. Therefore, the endpoint of the risk assessment for lead-contaminated sites should be set at the blood lead level of children. In foreign countries, the risk assessment for lead-contaminated sites is conducted by estimating the increased blood lead level of children via oral intake and/or inhalation (United States Environmental Protection Agency, USEPA), or by comparing the estimated oral dose to the threshold oral dose of lead, which is derived from the permissible blood lead level of children (Dutch National Institute for Public Health and the Environment, RIVM). For the risk assessment, USEPA employs Integrated-Exposure-Uptake-Biokinetic (IEUBK) Model to check whether the estimated portion of children whose blood lead level exceeds 10 µg/dL, threshold blood lead level determined by USEPA, is higher than 5%, while Dutch RIVM compares the estimated oral dose of lead to the threshold oral dose (2.8 µg/kg-day), which is derived from the permissible blood lead level of children. In Korea, like The Netherlands, risk assessment for lead-contaminated sites is conducted by comparing the estimated oral dose to the threshold oral dose; however, because the threshold oral dose listed in Korean risk assessment guidance is an unidentified value, it is recommended to revise the existing threshold oral dose described in Korean risk assessment guidance. And, if significant lead exposure via inhalation is suspected, it is useful to employ IEUBK Model to derive the risk posed via multimedia exposure (i.e., both oral ingestion and inhalation).

Development of Background Exposure Effect of Harmful Pollutants Using Population Risk Assessment in Ulsan (인구집단 위해도 평가 방법을 활용한 유해화학물질 배경 노출 영향 보정 방법 개발 -울산공단주변을 대상으로-)

  • Nam Goung, Sun Ju;Lee, Cheol Min;Lee, Hye Won;Park, Si Hyun;Lim, Hui Been;Choi, Kil Yong
    • Journal of Environmental Health Sciences
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    • v.45 no.3
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    • pp.231-237
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    • 2019
  • Objective: The objective of this study was to propose a method using population risk to assess the local background exposure effect of harmful pollutants from chemical accidents in Ulsan. Methods: The benzene was selected as representative harmful pollutant. The concentrations of benzene were measured and analyzed at 40 sites in Ulsan city in September, 2018. The data from National Statistics office in Korea were used for population density, and the Integrated Risk Information System (IRIS) data from US EPA were used for unit risk. Results: The risk assessment can be carried out by considering the background population risk. The background population risk was calculated as 5.01 persons per million for exposure to benzene in Ulsan, and therefore may be used as a adjusted background method in case of chemical accident caused by benzene. Conclusions: This study may provide the evidence that background exposure effect and risk to harmful pollutants from chemical accidents would be useful.

Risk assessment and variety registration of transgenic crops (형질전환작물의 위해성평가와 품종등록)

  • Lee, Keun-Pyo;Kim, Dong-Hern;Kweon, Soon-Jong;Baek, Hyung-Jin;Ryu, Tae-Hun
    • Journal of Plant Biotechnology
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    • v.35 no.1
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    • pp.13-21
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    • 2008
  • Final regulatory steps for commercialization of transgenic crops are risk assessment and variety registration. The risk assessment of transgenic crops requires broad network of scientists, high cost and long term. Developers of transgenic crops, therefore, face to additional challenges to consider theoretical and strategic aspects on risk assessment. The general concept for risk assessment of genetically modified organisms was derived from chemical risk assessment. Due to the complexity of organisms, however, comparative approaches that are substantial equivalence and familarity have been developed. In practical view, the integration of risk assessment is more difficult than the evaluation of each risk factors involving gene flow, toxicity and allergenicity. Variety registration of transgenic crops requires the results of risk assessment compared with non-GM crops and agronomic data analyzed with standard varieties. For economic and fast commercialization, risk assessment process should combined with condition of cultivation test for variety registration.