• 한국산업보건학회지
• /
• 제31권3호
• /
• pp.213-225
• /
• 2021

Objectives: This study identifies the trends in possible and probable occupational disease among chromium workers and reviews the literature on domestic and foreign chromium workers to review the industries, biological exposure levels, and major results. Methods: The results of the Ministry of Employment and Labor's special health-screening program for hazard agents among workers from 2009 to 2019 were used. Also, the industries, biological exposure levels, and major results on chromium workers were reviewed using PubMed and RISS. Results: The average annual proportion of both possible and probable occupational disease for chromium workers has recently increased. The average annual proportion of possible and probable occupational disease that can occur was high for both men and women in their 60s or older by age and 10 to 14 years by work duration. By industry, possible occupational disease showed high in manufacturing. In the literature review, many electroplating-related chromium-workers reported high levels of exposure to blood and urine chromium, as did dental technicians; tannery, tile factory or glass mill workers; cement workers; and sodium bichromate workers. Furthermore, a number of main findings in recent studies have reported that chromium exposure is related to genetic toxicity among workers. Conclusions: In this study, the average annual rate of both possible and probable occupational disease in domestic chromium workers is increasing, and a body of literature shows that chromium exposure is related to genetic toxicity and associated indicators among workers, which requires more systematic study.

• 산업노동연구
• /
• 제19권1호
• /
• pp.213-260
• /
• 2013

본 연구는 비정규직의 규모가 점진적으로 감소하고 있는 브라질의 비정규노동현황과 그 요인들을 통해 우리나라에 대한 시사점을 찾고자 하였다. 브라질 비정규직의 감소원인을 종합적으로 파악하기 위해 문헌과 통계청 자료를 확인하고, 구체적인 실태파악을 위해 상파울로 주에 있는 6개 제조업에 대한 사례조사를 실시하였다. 문헌연구결과, 비정규관련 노동법 조항과 제도들은 비정규직의 제한적 활용에 기여하는 것으로 나타났다. 브라질의 노동법은 고용형태가 다르더라도 비정규노동자를 임시적인 목적으로만 고용할 수 있도록 다양한 측면에서 규정하고 있으며 동일노동 동일임금 및 최저임금제도가 정규직과 비정규직의 임금차별을 완화하여, 결과적으로 사용자의 비정규활용 동기를 감소시키는 것으로 해석되었다. 또 노동검찰과 노동법원은 위법적인 비정규활용을 엄격하게 감시하는 역할을 통해 법적 테두리를 넘어서는 비정규고용을 억제하고 있었다. 사례조사결과, 대부분의 기업에서 비정규직은 임시적인 형태로만 고용되어 있었으며 다수의 사례기업에서 비정규직의 정규직화가 이루어지고 있음을 확인하였다. 이러한 비정규고용에 대한 법적 제한과 정규직화는 노조의 정치적 영향력 확대와도 밀접하게 관련되어 있었다. 브라질의 사례는 우리에게도 적지 않은 시사점을 제공할 수 있을 것으로 기대되었고, 이를 연구의 결론에서 토론하였다.

• 한국방사선학회논문지
• /
• 제15권3호
• /
• pp.371-379
• /
• 2021

기존 대학의 인성교육은 주로 직업윤리 교육이나 기초교양에 초점을 맞추어 이루어지고 있지만, 최근 4차 산업에 대비하여 인성교육 프로그램의 목적 및 방식이 변화되며 이와 관련된 직업인성교육 프로그램이 필요하다. 그러나 국내에서는 아직까지 보건의료종사자가 갖추어야 할 직업인성에 대한 교육 프로그램 개발에 대한 연구가 부족한 실정이다. 따라서, 본 연구에서는 사례기반학습을 기초로 하여 4차 산업혁명에 요구되는 맞춤형 직업인성교육을 위한 프로그램을 개발하고 적용하여 효과를 확인하고자 한다. 본 연구에서는 일반 사례 및 직업 현장에서의 사례를 개발하고 직업인성교육 프로그램 효능 검증을 위해 연구 도구를 개발하였다. 본 연구에서 개발 된 4차 산업혁명에 요구되는 맞춤형 직업인성교육을 위한 프로그램은 1회(120분), 4회차 프로그램으로 제공되었으며, 단일집단 사전사후 설계로 2019년 11월 26일부터 2020년 01월 05일까지 대구시 소재의 방사선과 및 임상병리과 2, 3학년 학생 52명을 대상으로 수행되었다. 자료 분석은 평균과 표준편차, Paired t-test로 분석하였다. 본 연구에서 개발된 4차 산업혁명에 요구되는 직업인성교육을 위한 프로그램 적용을 통해 보건의료종사자의 핵심직업인성 영역인 책임, 정직, 배려, 협업, 소통, 역량에 대해 향상된 것으로 확인되며, 직업인성교육의 긍정적인 효과를 확인하였다.

• 한국재난정보학회 논문집
• /
• 제19권1호
• /
• pp.161-172
• /
• 2023

건설근로자에게 강의식으로 전달하는 안전교육은 집중도와 몰입도에 한계가 있으므로 전달력과 흥미가 떨어진다. 교육을 통하여 불안전한 행동을 개선하고, 안전사고를 예방하기 위해서는 체험식 교육으로 패러다임을 전환할 필요가 있다. 연구목적: 체험식 안전교육은 건설근로자가 위험을 더 빠르게 인지하고, 응급대처 능력향상과 사전·사후 학습전이 효과성을 검증하므로 건설근로자 사고 예방에 기여하고, 체험교육이 건설근로자 안전한 행동 유도에 미치는 영향 연구가 목적이다. 연구방법:실제 건설 현장과 동일 작업환경으로 구성된 체험시설을 경험한 종사자들의 설문으로 안전체험교육 사전·사후에 대한 의견조사와 학습전이 성과에 대해서 조작적 정의와 변수측정도구를 계획하고, 연구가설을 설정하였다. 연구결과: 구조방정식 모형을 통하여 경로분석 하였으며, 베이지안 이론과 MC 시뮬레이션 분석법으로 척도목표 기술통계량 및 척도입력 기술통계량에서 의도된 안전(A), 불안전(B)의 하위영역 비(非) 체험 교육, 체험식 교육의 평균, 표준편차, 최소·최대 값을 통해서 건설근로자 행동 변화를 확인하고 가설을 증명하였다. 결론: 건설근로자들에게 참여동기가 유발되어야 교육의 효과와 산업재해가 감소된다.

• 한국재난정보학회 논문집
• /
• 제19권3호
• /
• pp.597-607
• /
• 2023

연구목적:고용노동부는 근로자의 산업재해 및 건강장해 예방을 위한 업무를 수행하는 주무부처로서 그간 자연재난 중 폭우로 인한 근로자의 안전을 위해 노력을 해 왔으나, 폭우로 인한 사업장 재난을 막기에는 역부족이였다. 이에 따라, 고용노동부에서 폭우재난을 대응했던 실제 사례를 분석하고 대응체계 개선을 위한 방안을 제시하고자 한다. 연구방법: 본부·지방관서·한국산업안전보건공단에서 재난업무를 수행하는 담당자로 구성된 내부 전문가집단과 교수, 컨설팅 대표, 타부처 재난담당자로 구성된 외부 전문가집단과 함께 폭우재난을 대응하기 위해 실시한 비상대응체계, 업종별 자율점검, 사업장 점검, 중대사이렌 활용, 안전관리 및 복구작업 지도 등에 관한 내용을 검토하였다. 연구결과:우선, 상시 연락체계는 수시로 점검이 필요하며, 세부적인 업종별 자율점검표 마련·배포도 필요하다. 또한, 사업장 점검 시 자율점검 이행여부 확인을 해야 하며, 중대재해 사이렌으로 통해 알리는 정보의 가독성을 높일 방안도 필요 해 보인다. 아울러, 안전작업은 도급형태로 이뤄지기 때문에 구체적인 안전지침 마련도 필요해 보인다. 결론:계절적 유해·위험요인으로 인한 근로자의 생명을 보호하기 위해서는 과거처럼 수동적인 대처방법과 달리 이상기후는 돌발상황으로 여겨서는 안되고, 관행적인 틀에서 벗어나 적극적이고 선제적으로 대응해야 할 것이다.

• 예술인문사회 융합 멀티미디어 논문지
• /
• 제8권5호
• /
• pp.407-416
• /
• 2018

현대사회의 빠른 발달로 인해 웨어러블 장비가 탄생했고 빠르게 성장 중에 있다. 웨어러블 장비는 신체에 착용하는 특성으로 인해 경량, 소형 및 저전력을 만족해야 한다. 본 논문에서는 웨어러블 장비의 개요를 기술하였고, 웨어러블 장비 분야의 시장현황을 조사하였다. 또한 기존 개발된 웨어러블 컴포넌트 기술에 대한 사례 및 웨어러블 통신기술을 조사하였다. 한편 산업현장에서의 중대산업재해에 대한 사회적 관심으로 인한 스마트 HSE 시스템의 구축이 요구되었으며, 결합 되었을 경우 효과적으로 안전관리가 이루어 질 것으로 예상되는 웨어러블 장비와 스마트 HSE 시스템을 접목하는 방안을 제시하였다. 이를 위해 조선해양 분야의 용접작업장 위험요소를 도출하고, 용접작업장에서의 위험 시나리오를 작성하여 위험을 줄일 수 있는 웨어러블 장비 접목 방안을 제시하였다. 또한 웨어러블 장비가 적용된 위험 시나리오를 통해 위험이 저감될 수 있음을 보였다. 본 논문에서 제안한 웨어러블 장비와 HSE 시스템 연동방안을 통해 보다 안전하고, 사고 발생 시에는 신속한 대응으로 작업자 안전이 확보될 것으로 기대된다.

• 한국산업보건학회지
• /
• 제33권2호
• /
• pp.93-102
• /
• 2023

Objectives: With the evolution of direct reading sensors, it is possible to monitor several substances through telecommunication. However, there are some limitations on the use of direct reading technologies in the Occupational Safety and Health Act in South Korea, which only applies to detector tubes, noise, heat, and carbon monoxides. The number of chemicals and their amount of use have been continuously increasing in South Korea. The Ministry of Employment and Labor (MoEL) has concerns about worker's health because exposure is only covered for about 1.2% of all distributed chemicals. Using a direct reading monitor with photoionization detectors (PID-DRMs), gases and vapors chemicals can be measured. Based on the data, business owners are able to create corrective strategies, provide better working routines, and select correct respiratory equipment. PID-DRMs are less expensive and easier to handle for an owner voluntarily controlling chemicals emitted in the workplace. However, there are several limitations on using these PID-DRMs to the degree that the MoEL has not been able to select a legal monitor. The aim of this study was to review previous studies related to PID-DRMs and identify the characterization and limitation on PID-DRMs. Methods: To search for related studies on PID-DRMs, key words were used including direct reading monitors/instruments and/or photoionization detectors. Through that, four domestic and 15 international studies were reviewed. Results: Studies on PID-DRMs were conducted by chamber (enclosed, dynamic, walk-in) and in the field (experimental environment, actual environment). The concentration of PID-DRMs and charcoal tubes were compared for a single substance or mixture, or within the PID-DRMs. There was a high correlation between the two concentrations, but it did not meet the accuracy criteria (95% confidence interval, within 25%) of the NIOSH technical report (2012). In addition, differences in measured values occurred according to environmental factors (temperature, humidity) and high concentration, and concentration values tended to be underestimated due to contamination of the sensor. As a way to improve the accuracy of PID concentration, it was proposed to use correction factors, charcoal tube-based correction factors, or to calibrate the PID-DRMs in the same environment as the workplace. Conclusions: PID-DRMs can likely be used by business owners for the purpose of voluntarily managing the workplace environment, and it is expected that it will be possible to use them as legal equipment if a PID sensor can be upgraded and the limitations of the sensor (temperature, humidity, high concentration evaluation, sensor pollution) can be overcome in the near future.

• 한국산업보건학회지
• /
• 제33권2호
• /
• pp.115-125
• /
• 2023

Objectives: This study was conducted to measure the level of radon in the air at a highway tunnel construction site in a gneiss area using the New Austrian Tunneling Method (NATM) and to evaluate exposure levels by occupation. Methods: Radon concentrations in the air were measured using E-PERM at points 300 m, 600 m, and 900 m from the tunnel entrance during the excavation and waterproofing work inside the tunnel. In addition, radon concentrations were measured during external excavation to compare with the inside of the tunnel. Personal exposure levels for major occupations including tunnel workers, construction equipment operators, waterproofers, shotcrete workers, and safety and health managers who participated in the construction were estimated using radon concentration measured in the work process area and working hours by occupation. Results: As a result of a total of 77 radon measurements, the geometric mean (GM) concentration was 71.1 Bq/m³, and the maximum concentration was 127.3 Bq/m³, which was below the indoor air quality criteria. Radon concentration by process decreased in the order of the tunnel excavation process (GM= Bq/m³, GSD=1.2), waterproofing process (GM=73.35 Bq/m³, GSD=1.2), and outside excavating process (GM=45.28 Bq/m³, GSD=1.2). Processes inside the tunnel were significantly higher than outside excavating processes (p<0.05). There was no statistically significant difference in radon concentration measured inside by distance from the tunnel entrance, but the innermost point of the tunnel, 900 m (GM=79.24 Bq/m³, GSD=1.27), measured the highest. Conclusions: The occupation with the highest individual exposure to radon was tunnel worker (64.16 Bq/m³), followed by construction equipment driver (64.04 Bq/m³) and waterproofer (63.13 Bq/m³).

• 한국산업보건학회지
• /
• 제33권3호
• /
• pp.375-383
• /
• 2023

Objectives: Coal-fired power plants feature diverse working conditions, including multi-layered employment structures and irregular work cycles due to outsourcing and non-standardized tasks. The current uniform occupational environment measurement systems have limitations in accurately assessing and evaluating these varied conditions. This study aims to propose alternative measurement and assessment strategies to supplement existing methods. Methods: Major domestic coal-fired power plants were selected as the study targets. To prepare for the study and establish strategies, work processes were identified and existing occupational environment measurement results were compared and analyzed. The study proceeded by employing three strategies: specific exposure groups (SEGs) measurement, continuous monitoring, and supplementary measurements, which were then compared and discussed. Results: Previous exposure index evaluations (5,268 cases) indicated that crystalline silica, a type of respirable particulate matter, had detection limits below the threshold (non-detectable) in 82.6% (4,349 cases) of instances. Exposures below 10% of the exposure limit were observed at a very low concentration of 96.1%. Similar exposure group measurements yielded results where detection limits were below the threshold in 38.2% of cases, and exposures below 10% of the limit were observed in 70.6%. Continuous monitoring indicated detection limits below the threshold in 12.6% of cases, and exposures below 10% of the limit were observed in 75.6%. Instances requiring active workplace management accounted for more than 30% of cases, with SEGs at 11.8% (four cases), showing a higher proportion compared to 3.0% (four cases) in continuous monitoring. For coal dust, exposures below 10% of the limit were highest in legal measurements at 90.2% (113 cases), followed by 74.0% (91 cases) in continuous monitoring, and 47.0% (16 cases) in SEGs. Instances exceeding 30% were most prevalent in SEGs at 14.7% (five cases), followed by legal measurements at 5.0% (eight cases), and continuous monitoring at 2.4% (three cases). When examining exposure levels through arithmetic means, crystalline silica was found to be 104.7% higher in SEGs at 0.0088 mg/m³ compared to 0.0043 mg/m³ in continuous monitoring. Coal dust measurements were highest in SEGs at 0.1247 mg/m³, followed by 0.1224 mg/m³ in legal measurements, and 0.0935 mg/m³ in continuous monitoring. Conclusions: Strategies involving SEGs measurement and continuous monitoring can enhance measurement reliability in environments with irregular work processes and frequent fluctuations in working conditions, as observed in coal-fired power plants. These strategies reduce the likelihood of omitting or underestimating processes and enhance measurement accuracy. In particular, a significant reduction in detection limits below the threshold for crystalline silica was observed. Supplementary measurements can identify worker exposure characteristics, uncover potential risks in blind spots of management, and provide a complementary method for legal measurements.

• 한국산업보건학회지
• /
• 제33권4호
• /
• pp.403-411
• /
• 2023

Objectives: Formalin is used as an anthelmintic in farms where flounder are raised. In this study, we aim to identify formaldehyde exposure levels for aquaculture industry workers and provide basic data for managing formaldehyde exposure. Methods: Exposure levels of formaldehyde in the air, including formalin spraying operations, were assessed separately for personal and area samples. In addition, considering the formalin administration method, dermal exposure to the hands was estimated when administering the chemical, and dermal exposure to the legs during water tank work was estimated by collecting water in the water tank and evaluating the amount of formaldehyde remaining. Finally, the respiratory exposure level and the estimated dermal exposure level were added to derive the total exposure level and compared with the maximum allowable human dose. Results: As a result of the airborne evaluation, the formaldehyde concentration of the worker (1 person) who performed the formalin spraying and flounder sorting was 33.61 ppb, and the arithmetic mean of formaldehyde concentrations of the workers (3 people) who only performed the flounder sorting was 3.28 ppb (range: 2.25-4.89 ppb). In the case of dermal exposure, when spraying formalin once, the amount was estimated to be 0.33-2.62 mg when wearing protective gear and 3.27-26.12 mg when not wearing it. Conclusions: There was a difference in the formaldehyde exposure level of workers depending on their operation of handling formalin and whether or not protective gear was worn. In particular, because the level of formaldehyde exposure due to dermal exposure can be significant, there is a need to improve formalin administration methods in a way that avoids skin contact as much as possible.