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한국산업보건학회> 한국산업보건학회지> 안전/보건관리자의 외상 사건 경험이 외상 후 스트레스 장애에 미치는 영향 -직무스트레스를 통한 사회적지지의 조절된 매개효과-

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안전/보건관리자의 외상 사건 경험이 외상 후 스트레스 장애에 미치는 영향 -직무스트레스를 통한 사회적지지의 조절된 매개효과-

A Study on the Effects of Trauma Case Experience on PTSD of Safety/Health Manager's -The Moderated Mediation Effect of Social Support through Job Stress-

심재범 ( Jae-beom Shim ) , 이미은 ( Mi-eun Lee )
  • : 한국산업보건학회
  • : 한국산업보건학회지 31권1호
  • : 연속간행물
  • : 2021년 03월
  • : 38-49(12pages)
한국산업보건학회지

DOI


목차

Ⅰ. 서 론
Ⅱ. 연구 방법
Ⅲ. 결 과
Ⅳ. 고 찰
Ⅴ. 결 론
References

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Objectives: This study was conducted to analyze the impact of safety/health managers’ experience of trauma case on their post traumatic stress disorder and the mediation effects of job stress and the moderated mediation effects of social support.
Method: Using a structured questionnaire, data were collected from 241 workplace safety/health managers with experience in trauma case. The collected data were analyzed using SPSS(IBM. Ver.26.0) and verified through SPSS PROCESS Macro (Ver. 3.4).
Results: The trauma case experience and the job stress, which is a mediation variable, had a statistically significant positive effect on post-traumatic stress disorder, and the job stress had a positive mediation effect in the relationship between the trauma case experience and post-traumatic stress disorder. Social support had a statistically significant negative moderation effect in the relationship between the trauma case experience and job stress; social support had a moderated mediation effect on the indirect effect of a job stress on the post-traumatic effect through a trauma case experience.
Conclusion: The above findings suggest that work-related job stress management is important in order to reduce safety/health managers’ post-traumatic stress disorder caused by the experience of trauma case, and that social support is essential to reduce the job stress, which can later be used as a basis for further studies.

UCI(KEPA)

I410-ECN-0102-2022-500-000582795

간행물정보

  • : 의약학분야  > 예방의학및보건학
  • : KCI등재
  • :
  • : 계간
  • : 2384-132x
  • : 2289-0564
  • : 학술지
  • : 연속간행물
  • : 1991-2022
  • : 1115


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32권4호(2022년 12월) 수록논문
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1농업군과 비농업군의 비교를 통한 농업취업자의 근로환경에 관한 연구 : 제6차 근로환경조사 원시자료 이용

저자 : 채혜선 ( Hyeseon Chae ) , 박수인 ( Sooin Park ) , 김인수 ( Insoo Kim ) , 김경란 ( Kyungran Kim )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 287-301 (15 pages)

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Objectives: This study compared the characteristics of the work environment between agricultural and general workers and analyzed the effects of agricultural working characteristics on work-related health problems.
Methods: The participants of this study were 2,347 agricultural workers and 48,042 general workers who were selected by applying standardized weights to the raw data of 50,538 respondents from the 6th Korean Working Condition Survey (KWCS). Variables applicable to both worker groups and related to exposure to hazardous risk factors in the working environment, working hours and intensity of work, health problems and work-related status, and satisfaction with the work environment were selected. Chi-square tests and independent sample t-tests were performed to evaluate the differences in the variables between the two groups. Multivariate logistic regression analysis was conducted to analyze the effects of work environment characteristics on work-related health problems.
Results: Compared to general workers, agricultural workers were more exposed to hazardous environments, irregular work patterns such as working on Saturday/Sunday, and short repetitive tasks. They reported more work-related and general health problems, including back pain, upper extremity muscle pain, lower extremity muscle pain, and general fatigue. Agricultural workers showed lower satisfaction with their work environment than general workers. Factors affecting one or more work-related health problems included gender, working years, hazardous factors, irregular work pattern, working hours, and labor intensity.
Conclusions: Our findings showed that agricultural workers were relatively more vulnerable to safety issues compared to other occupational groups. Therefore, it is necessary to establish standardized safety and health standards and strengthen systematic safety and health management policies and services for agriculture.

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2한국 전자산업에서 작업환경측정을 통해 파악된 발암물질들 노출 특성과 발암물질관리 방안: 작업환경측정자료(2013-2017)를 중심으로

저자 : 손미아 ( Mia Son ) , 윤재원 ( Jaewon Yun ) , 황유성 ( Yu Seoung Hwang ) , 박미진 ( Mijin Park ) , 최민서 ( Minseo Choi ) , 이미영 ( Mi-young Lee ) , 백도명 ( Domyung Paek )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 302-324 (23 pages)

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Objectives: The objective of this study is to investigate exposure to occupational carcinogens in the nationwide electronics industries and to establish a strategy for control of occupational carcinogens in South Korea.
Methods: We evaluated occupational carcinogens as defined by International Agency for Research on Cancer (IARC) using a nationwide work environment measurement database on the electronics industry in South Korea measured between 2013 and 2017 in accordance with the Occupational Safety and Health Act.
Results: The number of occupational carcinogens found in the electronics industry in South Korea were: 20 for IARC Group 1, 14 for Group 2A, and 30 for Group 2B. The occupational carcinogens (Group 1) most frequently exposed were strong-inorganic-acid mists containing sulfuric acid (sulfuric acid), welding fumes, mineral oils (untreated or mildly treated), nickel compounds, silica dust, crystalline substances in the form of quartz or cristobalite, formaldehyde, arsenic and inorganic arsenic compounds, chromium (VI) compounds, trichloroethylene, cadmium and cadmium compounds, vinyl chloride, ethylene oxide, wood dust, beryllium and beryllium compounds, 1,3 butadiene, benzene, and others. Among them, the carcinogens (Group 1) exceeding the acceptable standard were trichloroethylene, formaldehyde, and ethylene oxide. The working environment measurement system as regulated by Occupational Safety and Health Act is not properly assessed and managed for occupational carcinogens in South Korea. A component analysis for all materials used should be set up to practically reduce occupational carcinogens. A ban on the use of occupational carcinogens and the development of alternative materials are needed. The occupational carcinogens below the acceptable standards should be carefully examined and a new standard for exposure needs to be established.
Conclusions: The Occupational Safety and Health Act should be improved to identify and monitor occupational carcinogens at work sites. A strategy for occupational safety and health systems should be provided to give direction to workers' needs and right to know.

KCI등재

3제3차 - 6차 근로환경조사를 이용한 우리나라 제조업 근로자의 작업관련 요통유병의 시계열추이 및 관련 요인

저자 : 허성찬 ( Seong-chan Heo ) , 박진욱 ( Jinwook Bahk ) , 양선희 ( Seonhee Yang )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 325-339 (15 pages)

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Objective: This study was to perform to identify the distribution characteristics and related factors of work-related low back pain among manufacturing workers in Korea.
Methods: We analyzed the third(2011) through sixth(2020) Korean Working Conditions Survey. This study examined changes in the prevalence of work-related low back pain among manufacturing workers and related factors, including demographic characteristics and working conditions.
Results: The prevalence of work-related low back pain showed a general tendency to increase during the study periods except for the 5th wave. The prevalence of work-related low back pain was higher in women than in men. The prevalence increased with increasing age and decreased with higher educational attainment. This trend was observed in all survey waves. The prevalence ratios for work-related low back pain according to working conditions varied over the survey period. In general, workers with manual jobs, long working hours, and exposure to tired or painful postures showed relatively higher prevalence ratios than did their counterparts. Providing Information on health and safety, perception that work affects health, and experience of presenteeism were identified as influencing factors for work-related low back pain. Although the working environment is improving, work-related back pain is on the rise. A multifaceted study on risk factors for work-related low back pain is needed.
Conclusion: Work-related low back pain is a significant factor affecting the working population's quality of life. The prevalence of work-related low back pain showed a tendency to increase during the study periods. A multifaceted study on risk factors for work-related low back pain is needed.

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4부·울·경에서 판매되는 도료 희석제의 구성성분 함량과 물질안전보건자료의 신뢰성에 관한 연구

저자 : 우성준 ( Sungjun Woo ) , 하권철 ( Kwonchul Ha )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 340-349 (10 pages)

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Objectives: The importance of MSDS is emphasized for communicating hazardous information due to the increase in the types and usage of chemical substances. The purpose of this study is to assess the reliability of MSDS by collecting and examining paint thinners commercially available in South Korea.
Methods: Twenty-five paint thinners were purchased at paint stores and the provision of MSDS was checked. Quantitative and qualitative analysis was performed on the chemical constituents of the thinners using GC-MSD and GC-FID. Reliability was evaluated by the MSDS collection rate for the paint thinners and calculating the rate of matching between laboratory analysis results and the contents and composition of chemical constituents given in the MSDS.
Results: Unlike a study conducted in 2006, MSDS were provided for all 25 thinners. As a result of qualitative analysis using GC-MSD, 104 chemical substances were detected. The substances with the highest detection rate were identified in the order of toluene, butyl acetate, acetone, xylene, and ethyl benzene. A component matching rate of 41% was found by comparing the differences between the number of substances detected in laboratory testing and the number of substances listed in the MSDS. Benzene, a carcinogen not listed in the MSDS, was detected in two thinners produced by a small company. The detected benzene contents were 0.039 and 0.040%. When benzene is used, it should be strictly handled according to the Industrial Safety and Health Act. However, since it is not listed on the MSDS, it is judged that benzene was not being managed as a carcinogen in the workplaces where it is used.
Conclusions: Since the reliability of MSDS, which play an important role in hazard communication, was evaluated to be low, it is necessary to systematically and continuously secure this reliability. In particular, carcinogens should be managed more strictly.

KCI등재

5화학물질 위험성 평가 시 건강영향 기준값의 단계적 적용에 관한 고찰

저자 : 이혜진 ( Hye Jin Lee ) , 이나루 ( Naroo Lee )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 350-358 (9 pages)

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Objectives: For chemical risk assessment in workplaces, it is necessary to determine a reference value through hazard assessment. In general, OEL (Occupational Exposure Limit) is used for this value. However, since chemicals with OEL were not enough, the concept of DNEL (Derived No Effect Level) was introduced in chemical safety assessment. In this study, the possibility and approach of applying DNEL for chemical risk assessment in domestic workplaces were investigated.
Methods: The characteristics of OEL and DNEL were investigated. In addition, ACGIH TLV and GESTIS DNEL were compared and the corresponding scopes were analyzed among the chemical substances notified in South Korea.
Results: OEL and DNEL are similar concepts reflecting reference values that should not be exposed based on health effects. While their evaluation and derivation are determined based on similar information and procedures, they may vary depending on the responsible actor, data availability, principles of judgment, and more. As a result of the comparative analysis of ACGIH TLV and GESTIS DNEL, it was confirmed that there is some correlation between TWA and DNEL. The conservatism of DNEL was around 50%. Additionally, it was found that the available range of DNEL among chemicals in South Korea is considerable.
Conclusions: This study showed that DNEL can be applied when assessing the risk of chemical substances in domestic workplaces considering several regards. However, since this is not the same level as OEL, we have proposed a proper approach to carry out risk assessment step by step.

KCI등재

6휘발성 유기화합물용 수동식 시료채취기 개발

저자 : 장미연 ( Miyeon Jang ) , 이광용 ( Gwangyong Yi ) , 전현진 ( Hyeonjin Jeon )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 359-370 (12 pages)

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Objective: This study is intended to design a commercially available passive sampler and conduct performance test on its use as a media for evaluating a working environment.
Methods: This study was conducted to select adsorbents, design models, and evaluate storage stability and sampling rates for the development of new types of passive samplers.
Results: The impurity detection, adsorbent capacity and breakthrough volume of five types of activated carbon were tested for selection of an adsorbent. One product was selected in consideration of the efficiency of purchase. A number of passive samplers were designed in a radial style and a badge style using plastic as a material. The final two prototypes were made using molds or 3D printing. For the storage stability evaluation, samples were stored at different temperature for 1~21 days and then analyzed. Most of the chemicals had excellent storage stability when refrigerated. However, some chemicals such as dichloromethane and methyl ethyl ketone need to be analyzed as soon as possible after sampling.
Conclusion: In this study, new types of passive samplers for 66 chemical compounds were developed. The evaluation of storage stability and sampling rates showed different results depending on the properties of the chemical substance. For some chemicals such as methyl ethyl ketone and dimethylformamide, activated carbon is inappropriate as an absorbent. In future studies, additional experiments are required on chemicals that are difficult to collect with activated carbon.

KCI등재

7석유계 UVCB 물질의 산업안전보건법 규제 적용을 위한 일부 휘발성 유기화합물 분석

저자 : 한정희 ( Jeong-hee Han ) , 박나영 ( Na-young Park ) , 이나루 ( Na-roo Lee )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 371-380 (10 pages)

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Objectives: To ensure that employers handling petroleum compounds understand whether petroleum-based UVCB (unknown or variable composition, complex reaction products, or biological materials) substances contain hazardous substances and comply with the Occupational Safety and Health Act, petroleum-based UVCB substances were analyzed and the results from samples were compared with MSDS (Material Safety Data Sheet) contents.
Methods: Twenty-one petroleum samples were analyzed using GC-MS (Gas Chromatography-Mass Spectrometry), targeting ten volatile organic compounds regulated by the Occupational Safety and Health Act.
Results: The target chemicals were detected in 13 out of 21 samples. All 13 samples were in the naphtha (low boiling point naphthas (gasolines)) group. There were also naphtha group samples containing 2% benzene. Some naphtha samples used as solvents contained about 1% benzene.
Conclusions: This study shows that naphtha group petroleum substances contain hazardous chemicals in many cases. In particular, if benzene, n-hexane, and toluene with low occupational exposure limits are contained above the limit concentration. Such information should be delivered in the article on MSDS legal regulations.

KCI등재

8직업성 극저주파 자기장 노출평가와 노출 기준에 대한 쟁점 고찰

저자 : 박동욱 ( Dong-uk Park ) , 이승희 ( Seunghee Lee ) , 조경이 ( Kyung Ehi Zoh )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 381-392 (12 pages)

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Objectives: Objective of this study is to review briefly exposure characteristics, monitoring instruments and threshold limit values for extremely low frequency-magnetic field (ELF-MF) methods. This study was undertaken through brief literature review. We performed a literature search in PubMed to identify ELF-MF studies conducted in workplaces. Initial search keywords such as 'extremely low frequency-magnetic field (ELF-MF)' and 'electromagnetic fields (EMF)' combined or singly. We limited our review to occupational rather than general nonworkplace environmental exposures.
Methods: The contents we reviewed: key industry and occupations generating ELF-MF, several direct-reading instruments monitoring ELF-MF and threshold limit values (TLV) preventing health effects may be caused by the exposure to ELF-MF.
Results: The industries related to the generation and supply of electricity, electrolytic installations, welding, and induction heating and more were regarded as high ELF-MF exposure industries. All jobs handling or employed performed in power cable lines, electrical wiring, and electrical equipment are found to be exposed to ELF-MF. Threshold or ceiling limit, 1,000 μT, is established to prevent acute effects of exposure to low-frequency EMFs on the nervous system: the direct stimulation of nerve and muscle tissues and the induction of retinal phosphenes. The International Agency for Research on Cancer (IARC) has classified ELF-MF as possibly carcinogenic to humans chiefly based on epidemiological studies on childhood leukemia. However, a causal relationship between magnetic fields and several types of cancer including childhood leukemia has not been established nor has any other long-term effects. Risk management using precautionary measures, has been initiated by the US and EU to prevent chronic health effects related to ELF-MF exposure in workplaces.
Conclusion: This study recommends the implementation of various measures such as theestablishment of occupational exposure limit values for ELF-MF and precautionary principle to prevent potential chronic occupational health effects may be caused by ELF-MF in Korea.

KCI등재

9ISO 45001과 중대재해처벌법상 안전보건관리체계에 대한 비교 연구

저자 : 김영관 ( Young-gwan Kim ) , 정진우 ( Jin-woo Jung )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 393-401 (9 pages)

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Objectives: OHSMS, which was introduced by Serious Accident Punishment Act as a means for safety and health management at work place, but it is not effective according to recent statistical data. Therefore, I intend to compare the OHSMS regulations of SAPA based on ISO 45001, the international standard of OHSMS, and examine the differences and problems.
Methods: The OHSMS regulation of Serious Accident Punishment Act was compared and analyzed using the content standard of ISO 45001, the international standard of OHSMS. The construction and operation aspects and differences in key concept definitions of OHSMS were analyzed in depth.
Results: ISO 45001 aims to provide OHSMS with an autonomous framework to manage risks and opportunities in safety and health management, whereas Serious Accident Punishment Act aims for safety and health management through an interest and effort in safety and health management on the premise of legal responsibilities of corporations and CEO. As a result, comparing to ISO 45001 in construction and operation aspects and differences in key concept definitions of OHSMS, the OHSMS of Serious Accident Punishment Act do not cover the entire business in concept definition and construction.
Conclusions: In order for Serious Accident Punishment Act to achieve its original purpose of preventing serious accidents through systemic safety and health management, it is necessary to correctly understand the contents of ISO 45001 and to revise the OHSMS regulations in a direction that can ensure predictability and feasibility.

KCI등재

10습구흑구온도지수 모델링을 통한 옥외 건설 현장의 고열 노출수준 추정

저자 : 신새미 ( Saemi Shin ) , 이혜민 ( Hea Min Lee ) , 기노성 ( Nosung Ki ) , 채정수 ( Jung Soo Chae ) , 변상훈 ( Sang-hoon Byeon )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 4호 발행 연도 : 2022 페이지 : pp. 402-413 (12 pages)

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Objectives: In this study, the scale of exceeding the extreme heat exposure standard at the construction site was estimated using the nationally approved statistical data and wet bulb globe temperature modeling method. By comparing and analyzing the modeling results with the existing work environment monitoring results, the risk of heat exposure at outdoor construction sites was considered.
Methods: Using the coordinates of second level administrative districts and meteorological observatories as the key, the automated synoptic observing system data and building permit data for 2021 were matched. The wet-bulb temperature was obtained using Stull's formula, and the globe temperature was obtained using the TgKMA2006 model. WBGT was calculated using these. Excess rates were obtained compared to exposure limits for heavy work-continuous work and moderate work-25% rest. It was compared with the results of the work environment monitoring in 2020.
Results: As a result, 1,827,536 cases were estimated for 11,052 workplaces in one year. This is much higher than the 5,116 cases of 3818 workplaces of the existing work environment monitoring results. It is confirmed that the exposure limit was exceeded in 10.6~24.0% of the entire period and 70.2~84.1% of the peak period of the heat wave. It is very high compared to 0.9% of the existing work environment monitoring result.
Conclusions: It is necessary to improve the system of monitoring and statistics related to extreme heat. Additional considerations are needed regarding WBGT estimation methods, meteorological data, and evaluation time. Various follow-up risk assessment studies for other industries and time series need to be continued.

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1화학물질 노출정보 제공을 위한 GC-MS 분석자동화 프로그램 개발

저자 : 박승현 ( Seung-hyun Park ) , 박해동 ( Hae Dong Park ) , 장미연 ( Miyeon Jang ) , 노지원 ( Jiwon Ro ) , 조현민 ( Hyounmin Cho )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 1-12 (12 pages)

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Objective: The purpose of this study was to contribute to the prevention of occupational diseases through the development of an automatic analysis program for evaluating workers' exposure to hazardous chemical substances.
Methods: The authors selected chemical substances that caused occupational disease in Korea and chemical substances that are frequently used in industrial sites as target substances for a GC-MS automatic analysis program. The target substances are organic compounds which can be measured by a passive sampler. The automatic analysis program was studied using various raw data obtained from GC-MS analysis for the target substances.
Results: A total of 48 organic compounds that can be measured with a passive sampler were selected as target substances for the GC-MS automatic analysis program. The selected compounds included substances that caused occupational disease, substances related to C1 and D1 in special health examinations, and substances for which work environment measurements have been frequently conducted. The GC-MS automatic analysis program was developed by combining information mainly on retention time and mass spectrum. The GC-MS automatic analysis program is designed to analyze unknown samples by comparing the mass spectrum and retention time of the samples to those of reference materials. To evaluate the stability of the program, samples at about the 30-50% level of OELs were prepared and analyzed with the GC-MS automatic analysis program, resulting in stable results for all 48 organic compounds.
Conclusion: An automatic analysis program for a total of 48 organic compounds was developed using a GC-MS system that can analyze organic compounds. Unknown samples that contain the 48 organic compounds can be automatically analyzed by the developed program. It is anticipated that it can contribute to the prevention of occupational diseases through an GC-MS automatic analysis program that can quickly provide workers with information on exposure to chemical substances.

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2고속도로 톨게이트 요금수납원의 작업환경 유해인자 노출평가

저자 : 박해동 ( Hae Dong Park ) , 강준혁 ( Joon Hyuk Kang ) , 김준범 ( Joonbeom Kim )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 13-21 (9 pages)

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Objectives: The purpose of this study was to evaluate the exposures of cashiers who work at expressway tollbooths.
Methods: We measured temperature(temp.), relative humidity(RH), and contaminants with direct reading instruments at ten expressway toll gate in September 2015. Elemental carbon was collected on the quartz filters and analyzed with an OCEC analyzer.
Results: The average levels for temp., RH, carbon monoxide, carbon dioxide, dust(PM10), and black carbon were respectively 24.6~27.8℃, 32.3~65.3%, 0.5~1.2 ppm, 456~559 ppm, 12~111 ㎍/㎥, and 3.1~10.1 ㎍/㎥ at each tollbooth. The concentrations of elemental carbon within the tollbooth(1.8~7.2 ㎍/㎥) were lower than outdoors(2.5~10.0 ㎍/㎥), but exhibited a high correlation(r2=0.855). The exposure levels for carbon monoxide, black carbon, and elemental carbon in the tollbooths were significantly higher than the offices. The concentrations of black carbon and elemental carbon showed a high correlation(r2=0.756).
Conclusions: The levels of contaminants were below the occupational exposure limits in the expressway tollbooth. There were ventilation and air conditioning systems in the booths, but it is necessary to maintain and use the systems properly.

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3이온크로마토그래피를 활용한 무기산류 정도관리 방법 연구

저자 : 박해동 ( Hae Dong Park ) , 박승현 ( Seung-hyun Park ) , 정기효 ( Kihyo Jung )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 22-30 (9 pages)

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Objectives: The objectives of this study were to develop a quality control protocol of inorganic acids using ion chromatograph and to evaluate analytical proficiency of the legally designated agencies.
Methods: This study prepared inorganic acid samples by injecting three anion certified solutions (chloride, nitrate, and sulfate) on the quartz filters. To investigate the storage stability and concentration consistency of the samples, 240 samples for each anion were tested at weeks 0, 2, 4, 8, 12, and 16 while storing at 4℃ and 25℃. To evaluate analytical proficiency, two separate testings were administrated for six skilled analysts and 46 analysts affiliated with legally designated agencies.
Results: Average recoveries of the three ions after 16 weeks of storage were fairly high (over 95%). In addition, average recoveries (chloride = 97%, nitrate = 96%, and sulfate = 103%) after 16 weeks of storage at low temperate were relatively higher than those (94%, 93%, and 98%) at room temperature. The coefficients of variation (CV) for the three ions were less than 5% except for the sulfate sample at 5.56 ㎍ (CV = 12.4%). The average ratios of the concentration values analyzed by the legally designated agencies to the injected concentrations were close to 1. However, their CVs were relatively greater (chloride ≤ 49%, nitrate ≤ 14%, and sulfate ≤ 28%), which implies a need for quality control.
Conclusions: The quality control protocol used in this study for the three inorganic acids can be utilized in the quality control for ion chromatography.

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4택시 운전직 종사자의 직장폭력 평가

저자 : 이미호 ( Mi Ho Lee ) , 이사우 ( Sa-woo Lee ) , 피영규 ( Young Gyu Phee )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 31-37 (7 pages)

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Objectives: The purpose of this study was to evaluate the level of workplace violence experienced by taxi drivers and identify the affected factors.
Methods: Two hundred twelve taxi drivers were investigated for general characteristics and workplace violence was evaluated using K_WVSⓇ13. The data was collected from July to October 2020 through questionnaires. It was analyzed using t-test and ANOVA with SPSS WIN23.0.
Results: Most of the taxi drivers were elderly and suffered from long hours of labor and low wages. After evaluating four sub-factors of workplace violence, 'psychological and sexual violence from customers', 'psychological and sexual violence from customers, supervisors, and coworkers' and 'physical assault from customers/supervisors/coworkers' were judged as risks. For 'psychological and sexual violence from customers, supervisors, and coworkers', the mean score by age was significantly higher for workers in their 70s or older and those with 30 years of experience compared to other age groups. In the case of 'psychological and sexual violence from customers', sales taxis were significantly higher than private taxis.
Conclusions: It is necessary to develop a workplace violence prevention program suitable for the characteristics of taxi drivers in order to manage their physical and mental health. When establishing such a program, business type, age, and experience must be considered.

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5안전/보건관리자의 외상 사건 경험이 외상 후 스트레스 장애에 미치는 영향 -직무스트레스를 통한 사회적지지의 조절된 매개효과-

저자 : 심재범 ( Jae-beom Shim ) , 이미은 ( Mi-eun Lee )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 38-49 (12 pages)

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Objectives: This study was conducted to analyze the impact of safety/health managers' experience of trauma case on their post traumatic stress disorder and the mediation effects of job stress and the moderated mediation effects of social support.
Method: Using a structured questionnaire, data were collected from 241 workplace safety/health managers with experience in trauma case. The collected data were analyzed using SPSS(IBM. Ver.26.0) and verified through SPSS PROCESS Macro (Ver. 3.4).
Results: The trauma case experience and the job stress, which is a mediation variable, had a statistically significant positive effect on post-traumatic stress disorder, and the job stress had a positive mediation effect in the relationship between the trauma case experience and post-traumatic stress disorder. Social support had a statistically significant negative moderation effect in the relationship between the trauma case experience and job stress; social support had a moderated mediation effect on the indirect effect of a job stress on the post-traumatic effect through a trauma case experience.
Conclusion: The above findings suggest that work-related job stress management is important in order to reduce safety/health managers' post-traumatic stress disorder caused by the experience of trauma case, and that social support is essential to reduce the job stress, which can later be used as a basis for further studies.

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6기혼직장여성의 우울증에 미치는 영향요인: 여성가족패널 조사 7차년도(2017-2018) 자료 활용

저자 : 정유림 ( Yu-rim Jeong ) , 한삼성 ( Sam-sung Han )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 50-59 (10 pages)

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Objectives: The aim of this study was to examine factors influencing depressive symptoms among married working women using the dataset of the Korean Longitudinal Survey of Women and Family (KLoWF 7th). There were 1,030 subjects.
Methods: A multiple regression model was used to study the factors influencing depressive symptoms among married working women.
Results: The authors found a negative relationship between satisfaction with spouse household-labor (b=-0.606, p=0.022) and depressive symptoms among married working women, a negative relationship with spouse (b=-0.237, p<0.001) and a negative spousal perception of working (b=-0.709, p=0.045), a positive relationship with excessive working hours (b=0.397, p=0.027), a positive relationship with temporal oppression on workload (b=0.422, p=0.002), and a positive relationship between workplace discrimination (b=0.053, p=0.046) and depressive symptoms among married working women.
Conclusions: This study suggests that family life and working environments are important factors for depressive symptoms in married women workers. The findings of this study will be helpful to policymakers to design plans to decrease depressive symptoms among married working women.

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7안전보건교육과정별 참여도 및 교수방법 변경 후 만족도 비교

저자 : 어원석 ( Won Souk Eoh ) , 이상민 ( Sang Min Lee ) , 조인옥 ( In Ok Cho )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 60-72 (13 pages)

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Objectives: This study was performed to investigate the level of participation in and satisfaction with training courses at job training institutions and to improve participation and satisfaction through changes in the training method for industrial ventilation subjects.
Methods: The results were analyzed for the mean and standard deviation by t-test and ANOVA, (p=0.05). Participation rates were examined for three courses: specialization, job training, and supervisory. The participation inthe education was 428 people, and the result of satisfaction with the change of education method was 878 people. Satisfaction was investigated for the specialized curriculum and job training curriculum,but not the supervisor curriculum. The satisfaction results for six items(contents, quality, skill, level, degree of understanding, degree of practical) were analyzed according to the change in the training medium and the method among people in one occupational ventilation subject.
Results: The participation rate was similar in the job training and specialized training courses, but the lowest rate was in supervisory courses(p=0.05). In general, there was the lowest participation on the first day of education, and the participation rate improved after the second day. Satisfaction with the course was high for the specialized education course with a number of practical education assignments(p=0.278). The satisfaction level for the teaching method in the industrial ventilation subjects was high in a mixed group which combined lecture and practice. The industrial ventilation course in the basic job training course showed a difference between lecture and mixed education(p=0.111), but there was no significant difference. However, the industrial ventilation course in the advance job training course showed a clear difference between lecture and the mixed education(p=0.036).
Conclusions: Therefore, the first day of training should start in the afternoon so that more trainees can participate, and it is recommended to assign important subjects after two days. In addition, it is suggested that job competency-enhancing education utilize various educational methods and media.

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8한국인의 중금속과 유기용제에 대한 인식도와 정보취득 경로

저자 : 이채관 ( Chae Kwan Lee )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 73-82 (10 pages)

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Objectives: This study aimed to investigate the public cognition and information acquisition route for heavy metals and organic solvents in the general population in order to provide information for the development of public relations materials.
Methods: The study was carried out by questionnaire from January to March 2011 by an interview with trained surveyors. There were 700 participants, divided by gender and age. A questionnaire was issued consisting of subjective and objective cognition evaluation items and questions about information acquisition route and preferred information acquisition route for six heavy metals and five organic solvents. Data were expressed as a percentage using the SPSS 23.0 software package.
Result: For heavy metals, subjective and objective cognition degrees were higher in the order of lead, mercury, cadmium, and arsenic. They were higher among males than females, and in adults compared to school-age subjects. For organic solvents, both cognition degrees were high in the order of acetone, benzene, and formaldehyde. However, cognition degree by gender and age showed a complex pattern. As a response to information acquisition route, broadcast media had the highest in all ages and genders, followed by word of mouth from neighbors in elementary school children, school education or expert lectures in middle and high school students up to people in their 30s, and print media among those in their 40s to over 60s. There was no difference in the order by gender. As a response to preference for information acquisition route, broadcast media also proved the highest in all ages and genders, followed by school education or professional lectures among those in elementary school and over their 60s, and the internet in other age groups. Females preferred school education or expert lectures and word of mouth from neighbors, while males preferred the internet. In the case of the internet, the ranking was higher for preferred information acquisition route compared with the ranking for information acquisition route.
Conclusions: This data on cognition degree, information acquisition route, and preferred information acquisition route according to gender and age can provide basic data for the development of educational and promotional materials for heavy metals and organic solvents exposure management.

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9국외 질식재해 예방규정 비교를 통한 국내 규정 개선방안

저자 : 임대성 ( Dae Sung Lim ) , 이승길 ( Seung Kil Lee ) , 김치년 ( Chi-nyon Kim ) , 조기홍 ( Kee Hong Cho ) , 이광용 ( Gwang Yong Yi )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 83-93 (11 pages)

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Objectives: 'Confined space' was only defined in the Safety and Health Regulations as a place where oxygen deficiency and hydrogen sulfide must be dealt with at the time of the initial enactment (1982). The danger of fire and explosion were added in 2003. We will compare and review the regulations related to confined space work under the current safety and health rules alongside regulations in other countries and prepare a plan to improve the system through enhanced clarity and execution.
Methods: In a comparison of systems for the prevention of suffocation in confined spaces in major countries (Germany, United States, Japan) different concepts of the definition of confined spaces in different countries apparently due to differences in each country's legal implementation system, accident analysis methods, the status of safety and health implementation in workplaces, the precautions against actual confined space work, and the definition of confined spaces were found to be not much different between Korea and the other foreign countries.
Results: In the case of Germany and the United States, a confined space is defined as a contextual concept rather than a place, so more careful attention is needed from operators or enclosed space managers as it is often necessary to judge the actual workplace. In the case of Korea and Japan, the interior of the place is mainly defined as a place, especially in the case of Japan, which concentrates on oxygen deficiency and hydrogen sulfide poisoning.
Conclusions: For measures to improve regulations on the prevention of suffocation accidents in Korea, I would like to propose three major measures to improve the system in the rules on domestic industrial safety and health standards. It is necessary to prepare and provide a guide to ensure that the 18 types of confined spaces currently defined as confined spaces are clearly understood by field management supervisors or workers.

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10Fit Test를 이용한 국내산 N95 마스크의 교육 후 밀착도 비교

저자 : 서혜경 ( Hyekyung Seo ) , 권영일 ( Young-il Kwon ) , 명준표 ( Jun-pyo Myong ) , 강병갑 ( Byoung-kab Kang )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 31권 1호 발행 연도 : 2021 페이지 : pp. 94-104 (11 pages)

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Objectives: A number of medical institutions have been conducting fit tests to perform seal checks on masks. This study aimed to compare the differences fit factor before and after domestic N95 mask-wearing training through a fit-test.
Methods: A survey of 59 healthcare workers was conducted regarding whether they had undergone a fit test or received training on mask-wearing. Further, the fit of two types of domestic N95 masks was measured before and after the training using a QNFT(Quantitative Fit test). The average fit factors before and after training were compared using a paired t-test. Additionally the differences in the fit test pass rate were analyzed using a McNemar test.
Results: A statistically significant difference was seen between the fit factors in the fit tests conducted before and after the training (p=0.0015), as well as in the fit of the two types of masks tested (p<0.01). Thus, an improvement in mask fitting was seen after the training, even with differently fitted masks.
Conclusions: Upon using a QNFT, a significant increase in the fit factors for N95 masks was observed after training compared with masks that were fitted as usual. This highlights the importance of training in mask-wearing, with the conclusion that training healthcare providers will improve the fit of masks.

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