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한국산업보건학회지 update

KOREAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL

  • : 한국산업보건학회 (구 한국산업위생학회)
  • : 의약학분야  >  예방의학및보건학
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  • : 2289-0564
  • : 한국산업위생학회지(~2015) → 한국산업보건학회지(2015~)

수록정보
수록범위 : 1권1호(1991)~30권1호(2020) |수록논문 수 : 991
한국산업보건학회지
30권1호(2020년 03월) 수록논문
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KCI등재

1탄소나노튜브 복합체 취급 작업자의 공기 중 입자상 물질 노출 특성

저자 : 권지운 ( Jiwoon Kwon ) , 김성호 ( Sungho Kim ) , 장미연 ( Miyeon Jang )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 1-9 (9 pages)

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Objectives: The purpose of this case study is to assess workers' exposure to carbon nanotubes (CNTs) and characterize particles aerosolized during the process of producing CNT-enabled polytetrafuoroethylene(PTFE) composites at a worksite in Korea.
Methods: Personal breathing zone and area samples were collected for determining respirable concentrations of elemental carbon (EC) using NIOSH(National Institute for Occupational Safety and Health) Method 5040. Personal exposure to nano-sized particles was measured as the number concentration and mean diameter using personal ultrafine particle monitors. The number concentration by particle size was measured using optical particle sizers (OPS) and scanning mobility particle sizers (SMPS). Transmission electron microscopy (TEM) area samples were collected on TEM grids and analyzed to characterize the size, morphology, and chemistry of the particles.
Results: Respirable EC concentrations ranged from 0.04 to 0.24 μg/m3, which were below 23% of the exposure limit recommended by NIOSH and lower than background concentrations. Number concentrations by particle size measured using OPS and SMPS were not noticeably elevated during CNT-PTFE composite work. Instant increase of number concentrations of nano-sized particles was observed during manual sanding of CNT-PTFE composites. Both number concentrations and mean diameters did not show a statistically significant difference between workers handing CNT-added and not-added materials. TEM analyses revealed the emission of free-standing CNTs and CNT-PTFE aggregate particles from the powder supply task and composite particles embedded with CNTs from the computer numerical control (CNC) machining task with more than tens of micrometers in diameter. No free-standing CNT particles were observed from the CNC machining task.
Conclusions: Significant worker exposure to respirable CNTs was not found, but the aerosolization of CNTs and CNT-embedded composite particles were observed during handing of CNT-PTFE powders and CNC machining of CNT-PTFE composites. Considering the limited knowledge on the toxicity of CNTs and CNT composite particles to date, it seems prudent to take a precautionary approach for the protection of workers' health.

KCI등재

2고속도로 톨게이트 부스의 공기 중 분진 및 침착 분진 특성

저자 : 남미란 ( Mi Ran Nam ) , 정종현 ( Jong-hyoen Jung ) , 피영규 ( Young Gyu Phee1* )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 10-17 (8 pages)

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Objectives: This study was performed to evaluate the total dust, size-selective dust, and heavy metal concentrations generated inside and outside toll booths on an expressway and to identify the source through analysis of the components of the deposited dust.
Methods: A total of 32 samples were collected from eight expressway toll booths. Each total dust sample was collected using a 37 mm PVC filter attached to a personal air sampler. Heavy metal samples were collected according to NIOSH method 7300. The size-selective dust concentrations were identified using a DustMate, and deposited dust was analyzed by WD-XRF and UHR-FE-SEM.
Results: The geometric mean concentrations of the total dust inside and outside the toll booths were 337.5 ㎍/㎥ and 342.7 ㎍/㎥, respectively. The overall concentrations of TSP, PM10, PM2.5, and PM1 were higher on the outside of the toll booths, as the particle size of dust was larger, and higher in the underground passage as the dust size was smaller. The real-time analysis of the dust concentrations of TSP, PM10, PM2.5, and PM1 revealed to be higher at morning and evening times than other times because of heavy traffic. The element components of deposited dust in the toll booth were related to natural sources rather than artificial sources. Among the chemical components in the deposited dust analyzed by WD-XRF, SiO2 was the highest. For the elements analyzed by UHR-FE-SEM, C was the highest, followed by O, and Si.
Conclusions: In order to reduce the dust concentrations around toll booths on an expressway, it is necessary to periodically clean surrounding areas such as underground passages, and it is also necessary to remove deposited dust inside the toll booth from time to time.

KCI등재

3석면 함유 천장재에 대한 석면 안정화제 내구성 평가 연구

저자 : 하주연 ( Joo-yeon Ha ) , 신현규 ( Hyun-gyoo Shin )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 18-27 (10 pages)

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Objectives: For testing asbestos stabilizer products which are used for the maintenance and management of asbestos-containing materials, durability assessment should accompany the evaluation of basic properties and performance. Therefore, in this study we designed a testing method and constructed a database of durability performance, thereby providing basic data for reliability studies of asbestos stabilizer.
Methods: Since the ceiling materials targeted in this study are interior materials, test conditions of 95% relative humidity and 60℃ temperature were designed in consideration of the effect of high relative humidity in summer and seasonal indoor temperatures. Plate-shaped specimens treated with asbestos stabilizers were maintained in a thermo-hygrostat for 5, 10, and 20 days, and then the asbestos scattering prevention rate was measured by air erosion testing.
Results: The scattering concentration tended to increase with time under the single humidity condition, and exceeded the indoor air quality standard of 0.01 f/cc, during the 20 days of maintenance. On the other hand, there was little change according to the temperature condition. In the case of a complex condition with temperature and humidity, the results were similar to the humidity test, but the scattering concentration increased more sharply at 20 days.
Conclusions: The main deterioration factor that affects the durability of asbestos stabilizer is humidity, and the deterioration is caused by a mechanism in which the stabilizer coated on the surface is re-dissolved by moisture and evaporates or the coating layer is peeled off, which is accelerated by high temperatures.

KCI등재

4석면 해체 및 제거 업체가 느끼는 관련 제도의 문제점 및 개선방안에 관한 연구

저자 : 장재필 ( Jaepil Chang ) , 노영만 ( Youngman Rho ) , 정기효 ( Kihyo Jung )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 28-38 (11 pages)

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Objectives: The purpose of this study is to identify the perceived problems of and suggest improvement measures for asbestos abatement companies in support of asbestos-related systems and policies.
Methods: For this study a questionnaire was prepared consisting of current work (two questions), the contribution and necessity of a risk assessment system for asbestos abatement (two questions), and problems with and improvement measures for systems and policies (nine questions). The questionnaires were sent to 2,170 asbestos abatement companies and were returned by 83 companies (return rate = 3.8%). We conducted frequency analysis, ANOVA, and a Chi-squared test at the 5% significance level.
Results: Asbestos abatement companies expressed difficulties with complying with wet work (43% of unenrolled managers), negative pressure enclosure (36% of all respondents), and installation and use of decontamination units (26% of all respondents) as stipulated in the relevant regulations. In addition, 43% of the respondents expressed concerns that the expertise of the company was not considered during bidding for asbestos abatement and hoped that an advantage (e.g., bid point) would be given to the upper grades for asbestos risk assessment (38%). Asbestos abatement companies generally rented and used negative pressure devices (including negative pressure recording devices) and suggested that periodic calibration (32%) is needed to ensure the performance of the rented equipment. Finally, the respondents asked for clear definitions for three situations specified in the Occupational Safety and Health Acts: (1) temporarily leaving the asbestos abatement workplace; (2) tasks with less airborne asbestos; and (3) physically breaking or cutting using a machine.
Conclusions: The problems and improvement measures identified in this study of asbestos abatement companies can be utilized as fundamental information for the improvement of the systems and policies for safe asbestos abatement.

KCI등재

5화학물질의 누출과 피부접촉에 의한 재해자 및 사고사망자 발생현황 조사

저자 : 이권섭 ( Kwon Seob Lee ) , 최현성 ( Hyun Sung Choi ) , 이하영 ( Ha Young Lee ) , 신경민 ( Kyung Min Shin ) , 최흥구 ( Heung Koo Choi ) , 이인섭 ( In Seop Lee )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 39-49 (11 pages)

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Objectives: We investigated the status of accidents and deaths caused by chemical leakage and skin contact in Korea. The purpose of this study was to produce and provide technical reference data for the efficient management of accidents and the rational management of accidental chemicals.
Methods: Accidents and deaths caused by chemical leakage and skin contact in industry were investigated. Based on 68 accident reports related to chemical leakage and skin contact, the causes of accidental deaths were analyzed. In addition, we investigated the chemical substances and articles that caused these accidents and deaths. Based on the results of the investigation, the causes of accidents caused by chemical leakage and skin contact were identified and practical management measures for the chemicals were suggested.
Results and Conclusions: In 2018, 372 people suffered from chemical leaks and skin contact, up by 123 (about 49.4%) from the previous year. The number of accident deaths was 14, an increase of five (about 55.6%) from the previous year. In the last three years (2016-2018), 91 chemical substances and article groups were involved in accidents caused by chemical leakage and skin contact. There were 16 chemical substance and article groups involved in accidental deaths. There were ten cases of accidents involving two or more casualties due to chemical leakage and skin contact, and 23 deaths occurred. Most of these accidental deaths were caused by subcontractor workers outsourcing risks. Therefore, there is an apparent need to strengthen the responsibility for safety and health among subcontractors.

KCI등재

6수출입식물 훈증 작업자의 브롬화메틸 노출수준 평가

저자 : 정지연 ( Jee Yeon Jeong ) , 이광용 ( Gwang-yong Yi ) , 조숙자 ( Sook-ja Cho ) , 박승현 ( Seung-hyeon Park )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 50-57 (8 pages)

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Objectives: Methyl bromide is a highly toxic substance that can cause systemic poisoning, neurotoxicity, pulmonary edema. Methyl bromide is a widespread fumigation agent used for import and export quarantine, but there is little data on exposure assessment of workers participating in such fumigation. Therefore, this study aims to investigate the exposure level of methyl bromide among workers and the concentration distribution of methyl bromide in the workplace during fumigation.
Methods: For this study, one wood tent and one container fumigation area in Pusan, and one wood tent fumigation area in Incheon were investigated over three months from June 2001.
Results: Methyl bromide exposure levels for container fumigation workers were from undetected to 1.86 ppm and from undetected to 2.28 ppm for tent fumigation workers as an 8 hr TWA. After opening the container door, the methyl bromide concentration in the container decreased rapidly over time, but the concentration remained over 1 ppm even after about one hour. The concentrations around the tent during its removal were highly affected by wind, but were detected in a range from undetected to 11.97 ppm.
Conclusions: This study confirmed that both container and tent fumigation caused workers to exceed the exposure limit of 1 ppm as an 8 hour TWA. In particular, it could be confirmed that a situation exists in which the worker may be exposed to high concentrations of methyl bromide when opening the container or removing the tent due to the nature of the work. Therefore, it is very important to improve working methods and to wear appropriate personal protective equipment.

KCI등재

7정도관리용 포름알데히드 시료개발 및 분석능력평가

저자 : 박해동 ( Hae Dong Park ) , 장미연 ( Miyeon Jang ) , 박승현 ( Seunghyun Park )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 58-66 (9 pages)

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Objectives: The objective of this study was to develop formaldehyde samples for quality control (QC) and to test the applicability of proficiency analytical testing in Korea.
Methods: We made formaldehyde samples with certified standard solutions (formaldehyde in water or acetonitrile) and 2,4-dinitrophenylhydrazine (2,4-DNPH)-coated silicagel tubes. Four levels of formaldehyde concentration were tested for storage stability at room temperature and at 4℃ over three months. Analytical proficiency testing was performed with four or 36 institutes.
Results: Formaldehyde sample tubes were easily made through the injection of standard solutions and the average efficiencies of recovery were 95-101%. The coefficients of variation (CV) of the formaldehyde samples were 1.39-2.55%. The recovery efficiencies fell between 90% and 110% at the concentration range of 1-10 μg/sample over three months storage at refrigerated and room temperature. The CVs were less than 5% in the proficiency analytical testing. By adjusted proficient ranges, 64% of the results of the second proficiency analytical testing were acceptable.
Conclusions: The formaldehyde samples made by injection on 2,4-DNPH-coated silicagel tubes were stable and applicable for quality control.

KCI등재

8잠복결핵감염 양성인 분진작업 근로자에서 활동성 결핵 발병률

저자 : 황주환 ( Joo Hwan Hwang )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 67-74 (8 pages)

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Objectives: Previous study has shown that the positive rate of latent tuberculosis infection (LTBI) among former workers in dusty environments was higher than that among high-risk groups of tuberculosis (TB). The objective of the present study was to identify the development of active TB among former workers in dusty environments diagnosed with LTBI.
Methods: Between January 2015 and May 2017, 796 former workers in dusty environments who had been subjects of epidemiology research for work-related chronic obstructive pulmonary disease (COPD) had received the QuantiFERON-TB® Gold In-Tube (QFT-GIT) from the Institute of Occupation and Environment (IOE) under the Korea Workers' Compensation and Welfare Service (KCOMWEL). Among them, 437 participants who received a health examination for work-related pneumoconiosis between January 2015 and December 2018 were selected as study subjects. Active TB was defined as a positive result for active PTB and non-tuberculosis mycobacteria infection in the result of the Pneumoconiosis Examination Council's assessment by KCOMWEL.
Results: A total of 437 subjects were followed up for 2.1 years. Four of them (4/437, 0.9%) developed active TB during the follow-up period. The attack rate of active TB among subjects who were diagnosed LTBI positive and those who were diagnosed LTBI negative were 0.9% (3/320) and 0.9% (1/115), respectively.
Conclusions: Most previous studies reported that the attack rate of the development of active TB in subjects who had been diagnosed LTBI positive was higher than that among subjects who had been diagnosed LTBI negative. To the contrary, the present study found that the rate of developing active TB among former workers in dusty environments diagnosed as LTBI positive was not higher than that in those who were diagnosed LTBI negative.

KCI등재

9국내 요식업 작업환경의 호흡기 유해인자 노출 연구

저자 : 차원석 ( Won-seok Cha ) , 김은영 ( Eun-young Kim )

발행기관 : 한국산업보건학회 (구 한국산업위생학회) 간행물 : 한국산업보건학회지 30권 1호 발행 연도 : 2020 페이지 : pp. 75-86 (12 pages)

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Objectives: In this study, we assessed respiratory hazards in the working environment as the work-relatedness of occupational diseases were examined.
Methods: The subjects of the study were three Korean meat roasting restaurants, one Chinese restaurant, and two cafeterias. Measurement items were total dust, respirable dust, fine dust (PM2.5), PAHs, TVOCs, temperature, humidity, carbon monoxide, carbon dioxide, and nitrogen dioxide.
Results: The concentration of total dust and respiratory dust in the restaurant was low. Most PAHs were undetectable, but some Napthalene and Acenaphthylene was detected. Thirteen kinds of PAHs were detected in one sample of roasted meat, and Benzo(a)pyrene was 1.496 ㎍/㎥. PM2.5, TVOCs, CO, and CO2 were instantaneously high, but the average concentration was low. NO2 was not detected.
Conclusions: The results show that harmful substances such as PM2.5, PAHs, CO, and TVOCs were generated in the air in the catering industry. When roasting meat, Benzo(a)pyrene, a carcinogen related to lung cancer, was generated among PAHs. Lung cancer can occur when working for a long time in such a working environment. Therefore, it is necessary to improve the working environment for the health of restaurant workers, and it is necessary to evaluate the concentration of harmful substances by cooking method through further research.

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1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

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(2006)홍길동심리학41회 피인용

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(2006)홍길동41회 피인용

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