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한국산업보건학회지 update

KOREAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL

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수록정보
수록범위 : 1권1호(1991)~32권2호(2022) |수록논문 수 : 1,093
한국산업보건학회지
32권2호(2022년 06월) 수록논문
최근 권호 논문
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KCI등재

저자 : 정진우 ( Jin-woo Jung )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 1-13 (13 pages)

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Objectives: By comparing and examining how important issues concerning industrial health information for workers are viewed in other advanced countries, it is intended to ascertain problems in the approach found in Korean legislation and obtain legal and policy implications.
Methods: The results of a survey were introduced and analyzed through a comparative method for each case after investigating in detail what and how important issues surrounding workers' right to know industrial health information are reflected in the legislation of Germany, the U.S., the U.K., and Japan. Based on the results of this comparative analysis, theoretical and policy implications and legal policy improvement tasks were drawn to strengthen workers' right to industrial health information for each case in Korea.
Results: For access to industrial health information, most of the other advanced countries clearly stipulate a right to access for current and past workers and/or their representatives. As a result, workers or their representatives do not need to use the Information Disclosure Act to access exposure records, and there is no debate over the Information Disclosure Act. In other words, industrial health information is focused on ensuring free access to workers or their representatives and is not interested in reporting it to the government.
Conclusions: In order to strengthen workers' right to know about industrial health, it is most important to address the legal issues related to this right, which is considered insufficient by comparative law. This should start with a concrete and effective definition of what and how to guarantee workers' rights to industrial health, such as the right to freely access industrial health information, including for retired workers and bereaved families of deceased workers.

KCI등재

저자 : 박해동 ( Hae Dong Park ) , 노지원 ( Jiwon Ro )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 102-110 (9 pages)

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Objectives: The purpose of this study is to analyze the content of N,N-dimethylformamide(DMF) in polyurethane coated gloves(PU-gloves) and to assess the dermal exposure generated by wearing them.
Methods: We analyzed the concentrations of DMF in 12 gloves by EN16778 standard. The samples cut into pieces of about 10 by 10 mm and extracted with methanol in flask in an ultrasonic bath at 70℃. An aliquot of the extract is analyzed with GC-MS. The dose of dermal exposure was calculated by ECETOC TRA consumer 3.1 and compared with derived no effect level(DNEL) for systemic effects due to long term exposure by workers. The extracted amount of DMF by saline solution was compared with that by EN16778 standard.
Results: The mean concentration of DMF in PU-gloves was 1,377 ㎎/㎏(range 13~3,948 ㎎/㎏). The concentration of DMF showed significantly differences by packing type, manufacturer, and price(p<0.05). The dose of dermal exposure was 0.0007~0.572 ㎎/㎏ body weight/day when the DMF content was 10~4,000 ㎎/ ㎏. The DMF extracted by saline solution was around 11% for 8 hours.
Conclusions: The risk of dermal exposure due to the residual DMF in the PU-gloves was not signifiant. But, the limit of 1,000 ㎎/㎏ in PU-gloves can be recommended for international standard and trading systems.

KCI등재

저자 : 오건환 ( Kun-hwan Oh ) , 김기연 ( Ki-youn Kim )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 111-115 (5 pages)

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Objectives: The purpose of this study is to verify whether droplet-induced propagation, the main route of infectious diseases such as COVID-19, can occur in semiconductor FAB (Fabrication), based on research results on general droplet propagation.
Methods: Through data surveys droplet propagation was modeled through simulation and experimental case analysis according to general (without mask) and mask-wearing conditions, and the risk of droplet propagation was inferred by reflecting semiconductor FAB operation conditions (air current, air conditioning system, humidity, filter conditions).
Results: Based on the results investigated to predict the possibility of spreading infectious diseases in semiconductor FAB, the total amount of droplet propagation (concentration), propagation distance, and virus life in FAB were inferred by reflecting the management parameter of semiconductor FAB.
Conclusions: The total amount(concentration) of droplet propagation in the semiconductor fab is most affected by the presence or absence of wearing a mask and the line air dilution rate has some influence. when worn it spreads within 0.35~1m, and since the humidity is constant the virus can survive in the air for up to 3 hours. as a result the semiconductor fab is judged to be and effective space to block virus propagation due to the special environmental condition of a clean room.

KCI등재

저자 : 김유현 ( You Hyun Kim ) , 고석재 ( Seokjae Koh ) , 조경민 ( Kyung Min Cho ) , 채진경 ( Jinkyeong Chae ) , 오현정 ( Hyun Jung Oh ) , 장세진 ( Sei-jin Chang )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 116-128 (13 pages)

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Objectives: The aim of this study was to examine the association of working posture with headache/eye strain in Korean waged workers.
Methods: Data were collected from the 5th Korean Working Condition Survey. A total of 30,955 workers participated in this study. A four-items of working postures were measured using a 7-point Likert scale, and we categorized them into three groups ('normal', 'moderate', and 'severe') each 4 items. Headache/eye strain were measured using a self-administrative questionnaire ('yes' vs. 'no'). To examine the relationship between the total working postures score and headache/eye strain, we summed a 4-items of working postures. It was categorized into five groups according to the severity of exposures('normal', 'mild', 'moderate', 'severe', and 'very severe'). The multivariate logistic regression analysis was performed using the IBM SPSS(Ver. 25), and a p<.05 was considered significant.
Results: The results show that 'fatiguing and painful posture' and 'posture repetitively using hands or arms' were associated with headache/eye strain after controlling for control variables. The total working posture score was positively associated with headache/eye strain. People with higher levels of the total working posture score were more likely to increase the risk of headache/eye strain compared to those of normal(OR: 1.844, 95% CI: 1.549~2.195 for 'mild'; OR: 2.564, 95% CI: 2.152~3.503 for 'moderate'; OR: 4.140, 95% CI: 3.432~4.994 for 'severe'; OR: 7.613, 95% CI: 5.625~10.304 for 'very severe') (p<.05 for trend).
Conclusions: These results indicate that inappropriate working postures might play a crucial role in developing headache/eye strain. It is needed to improve the working environment, especially focusing on reducing inappropriate working posture at the organizational level.

KCI등재

저자 : 정진우 ( Jin-woo Jung )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 129-136 (8 pages)

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Objectives: Given the real problems at industrial sites related to the Serious Accident Punishment Act (SAPA), it has become controversial as a particularly important issue in terms of occupational safety and health. I intend to examine in detail what are the problems and how to approach them.
Methods: The contents of SAPA were reviewed focusing on whether its provisions conform to the principles of occupational safety and health, whether they fit the related legal theory, and whether they are effective for accident prevention. The purpose of this study is to examine whether there is a problem with SAPA from the perspective of the effectiveness of accident prevention by combining occupational safety & health management theory, and legal theory.
Results: In order to ensure the effectiveness of SAPA, it should be revised to increase the predictability and implementation of safety and health measure standards. Otherwise, it is expected that there will be not only economic and social costs in the short term, but also side effects that disrupt the safety law system, resulting in a considerable number of post-mortem conditions in the mid- to long term.
Conclusions: It is easy to see in comparative law that raising the legal punishment alone does not have the effect of preventing industrial accidents. SAPA should be revised as soon as possible in the direction of faithfully and elaborately reorganizing the standards for safety and health measures.

KCI등재

저자 : 정원건 ( Wongeon Jung ) , 서민태 ( Mintae Seo ) , 김효철 ( Hyocher Kim )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 137-145 (9 pages)

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Objectives: This study aimed to identify PM10 mass concentration levels and conduct peak identification during five tasks in agricultural works.
Methods: We investigated five agricultural tasks in 12 farms, which were harvesting, plowing, sowing, planting, and decapitation. All samples were measured by using the portable aerosol spectrometer(PAS 1.108) and the aerosol monitor(SidePak AM520). The collected data were compared with the national PM10 concentrations. They were calculated to descriptive statistics, independent t-test, or ANOVA, and the peak identification on time series graph.
Results: The ten investigated farms showed no significant difference with the national PM10 concentrations, but the two greenhouses(AM, 143.31, 85.16 μg/㎥) showed significant difference(p<0.05). As a result of the peak identification, the harvesting tasks showed repeated peak occurrence with the background concentration level of about 50 μg/㎥. For plowing and sowing tasks, the peak occurred intermittently when the working was conducted near the sampling sites. Among the five tasks, the arithmetic mean of the harvesting task was 138.84±294.71 μg/㎥, which was significantly higher than the other tasks(p<0.05). In addition, the case of using a tractor was higher than the case of not using the tractor(p<0.05), and the driver's seat showed the highest concentration(AM, 95.81 μg/㎥).
Conclusions: Works in greenhouses might have exposure to PM10, while outdoor works is similar to general atmospheric PM10 concentration levels. However, there is a possibility of intermittent exposure to high concentrations of PM10 depending on the characteristics of agricultural tasks.

KCI등재

저자 : 조기홍 ( Kee Hong Cho ) , 김현수 ( Hyun Soo Kim ) , 최아름 ( Ah Rum Choi ) , 천지영 ( Ji Young Chun ) , 강태원 ( Tae Won Kang ) , 김민수 ( Min Su Kim ) , 박경학 ( Kyeong Hak Park ) , 김제원 ( Ze One Kim )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 146-152 (7 pages)

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Objectives: The purpose of this study is to confirm whether there is a factor to affect the evaluation of fit test of a 2nd class half masks using a OPC test method.
Methods: Total 34 adults including Males and Females were tested using OPC-based fit testing equipment while wearing a 2nd class half filtered mask.
Results: 1. The result of measuring face dimensions using different tools such as a 3D scanner and digital calipers revealed that the variation of lip width was not statistically significant because there was only a difference of about 4 ㎜. However, it showed that a difference in face length was statistically significant enough with 10 ㎜(p<0.000).
2. The fit factor for each exercise stage according to gender was the highest at 124.54(p<0.001) in Step 3, and the fit factor was the lowest at 73.75 in Step 1.
3. In the evaluation of the degree of fit factor according to gender, female passed 67.44%, which was higher than the value in male(p<0.038).
4. The acceptance rate of the group having a face length of shorter than 110 ㎜ was 91.67%. On the other hand, the acceptance rate of the group with a face length of longer than 110 ㎜ was 47.27%(p<0.000).
5. The fit test was possible because the fit factor with 2nd class half masks corresponding to FFP1(Filtering Face Piece 1) was passed 55% or more.
Conclusions: The test results showed that using a 2nd class half filtered mask, it is important to wear a properly designed mask so that face size does not affect the fit factor.

KCI등재

저자 : 김성호 ( Sungho Kim ) , 박해동 ( Hae Dong Park ) , 정은교 ( Eunkyo Chung )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 153-162 (10 pages)

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Objectives: Fused deposition modeling (FDM) 3D printer which is one of the material extrusion (MEX) technologies is an additive manufacturing (AM) process. 3D printers have been distributed widely in Korea, particularly in school and office, even at home. Several studies have shown that nanoparticles and volatile organic compounds (VOCs) were emitted from an FDM 3D printing process. The objective of this study was to identify types of chemicals possibly emitted from FDM 3D printing materials such as PLA (polylactic acid), ABS (acrylonitrile butadiene styrene), nylon, PETG (polyethylene terephthalate glycol), PVA (polyvinyl alcohol), PC (polycarbonate) filaments.
Methods: 19 FDM 3D printing filaments which have been distributed in Korea were selected and analyzed VOCs emitted of 3D printing materials by headspace gas chromatography mass spectrometry (headspace GC-MS). Subsamples were put into a vial and heated up to 200℃ (500 rpm) during 20 minutes before analyzing FDM 3D printing filaments.
Results: In the case of PLA filament, lactide and methyl methacrylate, the monomer components of one, were detected, and the volume ratio ranged 27~93%, 0.5~37% respectively. In the case of ABS filaments, styrene (50.5~59.1%), the monomer components of one, was detected. Several VOCs among acetaldehyde, toluene, ethylbenzene, xylene, etc were detected from each FDM 3D printing filaments.
Conclusions: Several VOCs, semi-VOCs were emitted from FDM 3D printing filaments in this study and previous studies. Users were possibly exposed to ones so that we strongly believe that we recommend to install the ventilation system such as a local exhaust ventilation (LEV) when they operate the FDM 3D printers in a workplace.

KCI등재

저자 : 서혜경 ( Hyekyung Seo ) , 장호영 ( Hoyeong Jang ) , 심수아 ( Sua Shim ) , 김희주 ( Huiju Kim ) , 한돈희 ( Donhee Han )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 163-171 (9 pages)

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Objectives: Fit performance may vary depending on the ambient aerosol number and ratio in respective test environment. Although several instrument can measure it, they differ with respect to the measurement principle and the range of ambient aerosols collected to calculate the fit factor.
Methods: In this study, the fit performance between a condensation nuclei counter(CNC) and an optical particle counter(OPC) was compared according to ambient aerosol number concentration, and evaluated consistency. One type respirators(N95 masks) was worn by 50 participants PortaCount®(Pro+ 8038) and MT®(05U) were connected with one probe to one mask, and Fit Factors(FFs) were measured simultaneously.
Results: The interclass correlation coefficient of the fit factor and ambient aerosol number, as measured by the two instrument, was 0.82 and 0.79, respectively, indicating a high consistency level. On the other hand there was a significant correlation between the successful test performance of the OPC instrument and the ambient aerosol number.
Conclusions: The test was passed with the CNC and OPC instruments when the ambient aerosol number was 635-3,332 particles/cm3 and 368-1,976 particles/㎤, respectively. Thus, the ideal ambient aerosol number of particles differed between the two instrument.

KCI등재

저자 : 임대성 ( Dae Sung Lim ) , 김치년 ( Chi-nyon Kim ) , 이승길 ( Seung Kil Lee ) , 박정근 ( Jung-keun Park ) , 김기연 ( Ki-youn Kim )

발행기관 : 한국산업보건학회 간행물 : 한국산업보건학회지 32권 2호 발행 연도 : 2022 페이지 : pp. 172-181 (10 pages)

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Objectives: In order to reduce the burden on employers and increase the reliability of measurement results, improvements to the provisions related to the work environment measurement reporting system, such as the current Occupational Safety and Health Act and its Enforcement Rules, are planned. This study aimed to suggest improvements for the work environment measurement reporting system through a survey and Delphi investigation.
Method: This survey included workplaces (health managers), national institutions (the Ministry of Employment and Labor) that use the results of the work environment measurement reporting system for policy and supervision purposes, and work environment measurement institutions that enter the results were included. In addition to the survey, we tried to derive results through meetings with stakeholders and expert advisory meetings.
Results: It is difficult to abolish or partially improve the reporting system under the Enforcement Regulations of the Occupational Safety and Health Act at this point because the opinions of workplaces, supervisory agencies, and measuring agencies differ in terms of its intended purpose and use. In the case of high-exposure harmful factors (over 50% on the basis of exposure) in the “comprehensive opinion” described in the work environment measurement results table, it is necessary to insert unit of work with exposed harmful factors, exposure factors, and current conditions in checklists or tables so that they can be reflected in government policies. In the case of workplaces that are feared to be highly exposed to substances subject to measurement, it seems desirable to improve them so that industrial health instructors registered with the Korea Safety and Health Agency or local labor offices can provide technical guidance. As an improvement plan to increase the reliability of data and the use of big data, it is necessary to improve the input method for processes and jobs.
Conclusion: The laws and regulations of the work environment measurement reporting system are difficult to revise due to a lack of consensus among current stakeholders, but improvements can be achieved by improving the Ministry of Employment and Labor's notifications and other means. In addition, in order to effectively utilize the data from the K2B system, it is necessary to improve the input method for processes and jobs.

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