Annals of Occupational and Environmental Medicine

Seong Yong Yoon

5 Articles

Seven Cases of Respiratory Symptoms Caused by Acute Ozone Exposure from an Electronics Company: Yong Jun Kwon, Kuck Hyun Woo, Jin Seok Kim, Seong Yong Yoon, In Ung Song, Jay Young Yu, Seong Yong Cho; Korean Journal of Occupational and Environmental Medicine 2012;24(4):449-459. Published online December 31, 2012; DOI: https://doi.org/10.35371/kjoem.2012.24.4.449

BACKGROUND
Ozone is a colorless, pungent, and highly reactive gas. It can cause headaches, burning eyes, irritation to the respiratory passages, and dyspnea. This article describes cases of respiratory difficulty associated with acute ozone exposure from an electronics company that manufactures touchscreen.
CASE
REPORT: Seven young female workers visited the Department of Occupational and Environmental Medicine, complaining of cough, dyspnea, and chest discomfort that started within two days at work processing a touchscreen with ozone (0.103 ppm ozone detected in the their workplace). Other; symptoms observed included rhinorrhea, headaches, and dizziness. There was a temporary improvement in symptoms upon taking a day off, but their symptoms deteriorated upon continuing work again-suggesting the ozone exposure in their work environment was responsible for their symptoms. The results of pulmonary function and blood laboratory tests were normal; however, laryngoscopy and nasal endoscopy identified three cases of inflammation on laryngeal, intranasal, or vocal cord regions.
CONCLUSIONS
Based on the levels of ozone detected in the workplace and clinical symptoms presented, we conclude that the respiratory symptoms in these cases were caused by excessive ozone exposures.

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A Study of Ozone Variations in a Semiconductor Fabrication Facility and Office Related to the Ozone Concentration in the Outdoor Air
Ji-Eun Lee, Myung-Koo Jung, Kwang-Min Choi
Journal of Korean Society of Occupational and Environmental Hygiene.2016; 26(2): 188. CrossRef

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The Effect of Participatory Approach Program for Cardiovascular Disease Prevention in the Workplace: Seong Yong Yoon, Sin Kam, Jin Seok Kim, Seong Yong Jo, Yong Jun Kwon, In Woong Song, Kuck Hyeun Woo; Korean Journal of Occupational and Environmental Medicine 2012;24(2):133-144. Published online June 30, 2012; DOI: https://doi.org/10.35371/kjoem.2012.24.2.133

Abstract PDF

OBJECTIVES
The purpose of this study was to develop a program applying participatory action-oriented training (PAOT) methods for the management of cardiovascular disease risk factors and to assess its effectiveness in the workplace.
METHODS
The cardiovascular disease risk factors of 817 workers in the workplace were assessed, and periodic health examination was conducted. Sixty-four workers (7.8%) were selected as a moderate-risk group and high risk group, and performed the participatory approach program for cardiovascular disease preventive management.
RESULTS
The sixty-four workers who participated in the participatory approach program made a total of 246 action plans, 3.8 action plans per person and 115 action plans were achieved after three months, so that 46.7% of action plans have been achieved. In the intervention group that participated in the program, the rate of smoking decreased from 36.2% to 8.6% and systolic and diastolic blood pressure significantly decreased from 140.0+/-9.4 mmHg to 134.2+/-12.3 mmHg and from 92.6+/-7.1 mmHg to 80.0+/-9.8 mmHg respectfully. In addition, risk factor score also decreased by 0.3, whereas the control group who did not participate in the program also showed a significant reduction in the mean systolic and diastolic blood pressure. Regular exercise increased from 8.5% to 16.0%.
CONCLUSIONS
To improve the effectiveness of the participatory approach program for the management of cardiovascular disease risk factors, the need to continues implementing programs and analysis of the long-term effects are required.

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Effectiveness of a Participatory Program for Improving the Cardiovascular and Cerebrovascular Health of Older Farmers in Rural Korea
Ki-Youn Kim, Juhye Jin, Yeon-Ha Kim
International Journal of Environmental Research and Public Health.2023; 20(4): 3210. CrossRef
Effects of a Worksite-Based Self-Management Program in Traditional Retail Market Workers: Longitudinal Associations with Metabolic Parameters
Yeon-Ha Kim, Seong-Yong Yoon
International Journal of Environmental Research and Public Health.2022; 19(5): 2854. CrossRef
Developing a Health-Promotion Program Based on the Action Research Paradigm to Reduce Cardiovascular Disease Risk Factors among Blue Collar Workers
Won Ju Hwang, Jin Ah Kim
International Journal of Environmental Research and Public Health.2019; 16(24): 4958. CrossRef
Effectiveness of Participatory Action-Oriented Training (PAOT) Methods for the Management Metabolic Syndrome in Korean Manufacture Workers for Three-years
Jungsuk Lee, Sin Kam, Seongyong Yoon
Korean Journal of Occupational Health Nursing.2016; 25(4): 384. CrossRef
The Effect of Metabolic syndrome Management Program Applying Participatory Action-Oriented Training Principle
Seong-Yong Yoon, Kuck-Hyeun Woo, Hwa-Sung Kim, Yong-Bae Kim, Jin-Seok Kim, Seong-Yong Jo, Sung-Soo Lee
Korean Journal of Health Education and Promotion.2014; 31(5): 81. CrossRef

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Incidence of Dimethylacetamide Induced Toxic Liver Injury among Workers in a Synthetic Fiber Manufacturing Company: Yong Seok Jang, Seong Yong Yoon, Seong Yong Jo, Tae Sung Choi, Jay Young Yoo, Kuck Hyun Woo, Bong Goo Ha, Sang Jae Jung, Byung Yeol Chun, Jin Seok Kim; Korean Journal of Occupational and Environmental Medicine 2006;18(3):246-254. Published online September 30, 2006; DOI: https://doi.org/10.35371/kjoem.2006.18.3.246

Abstract PDF

OBJECTIVES
The main goal of this study was to find the incidence of the dimethylacetamide (DMAc) induced toxic liver injury among workers who were exposed to DMAc for about 5 years in a synthetic fiber factory.
METHODS
In our investigation, total 1,021 workers had been exposed to DMAc from 1st February, 2000 to 30th June, 2004. Among them, 24 workers who had initial abnormal hepatic enzyme level or was viral hepatitis B carrier were excluded. Finally, 997 DMAc exposed workers were followed up for their incidence of toxic liver injury. To find out DMAc induced toxic liver injury case, we carried out regular examinations including liver enzyme tests such as AST and ALT.
RESULTS
We followed up 997 workers and among them 72 cases coincided with our case definition. Incidence density method was 6.05 per 100 person-year. and, a cumulative incidence by life table method was 0.0965 within a year. The incidence of the DMAc-induced toxic liver injury peaked at 4 to 5 in weeks after employment. There was no toxic liver injury case within second week after exposure to DMAc. Five new cases developed in 2th to 3th week, 25 cases in 4th to 5th week, 14 cases in 6th to 7th week, 12 cases in 8th to 9th week, 5 cases in 10th to 11th week, 4 cases in 12th to 13th week, 4 cases in 14th to 15th week, 1 case in 16th to 17th week, 1 case in 30th to 31th week, and there was one case in 48th to 49th week.
CONCLUSIONS
The incidence rate of toxic liver injury was considerably high during the 1st year after a worker is placed. So it is needed to take careful monitoring of hepatic enzyme level for newly exposed worker.

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A review of life table applications and an introduction of its application method
Kyoungjin Shin, Boseung Choi
Journal of the Korean Data and Information Science Society.2013; 24(6): 1159. CrossRef
Occupational Hepatic Disorders in Korea
Hyoung Ryoul Kim, Tae Woo Kim
Journal of Korean Medical Science.2010; 25(Suppl): S36. CrossRef
Current status of liver diseases in Korea: Toxic and alcoholic liver diseases
Kyung-Ah Kim
The Korean Journal of Hepatology.2009; 15(Suppl 6): S29. CrossRef

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Application of Participatory Action-Oriented Training (PAOT) to Small and Medium sized Enterprises for Prevention of Work-related Musculoskeletal Disorders: Seong Yong Yoon, Kuckhyeun Woo, Jinseok Kim, Jay Young Yu, Taesung Choi, Bong Goo Ha, Yongseok Jang, Seong Yong Jo; Korean Journal of Occupational and Environmental Medicine 2005;17(3):249-258. Published online September 30, 2005; DOI: https://doi.org/10.35371/kjoem.2005.17.3.249

Abstract PDF

OBJECTIVES
The purpose of this study was firstly to introduce a Participatory Action-Oriented Training (PAOT) program for the prevention of work-related musculoskeletal diseases (WRMSDs) in Small and Medium sized Enterprises in the Gumi Industrial Zone, and secondly to assess its effect.
METHODS
Two PAOT workshops to prevent WRMSDs were conducted with 39 volunteer participants from 10 companies selected (on a first-come, first-served basis) among 200 small- or medium-sized enterprises in Gumi. These companies had been provided with mandatory occupational health management agency services for Small and Medium sized Enterprises by an occupational medicine clinic. Each workshop consisted of 6 technical sessions and one closing ceremony. At the 1st session, the principles of each action checklist item were explained and an on-site checklist exercise was carried out. The 2nd to 5th sessions presented good example pictures on 4 subjects: material storage and handling, working environment, work organization and work-related welfare. Group discussions were carried out by the participants. In the final 6th session on the implementation of improvement, each participant was asked to present 6 action plans, 3 short-term and 3 long-term, for their own workplace improvement.
RESULTS
Overall, the participants worked out 47 real action plans, 27 short-term and 20 long-term, for improvement of their own workplaces. Three to 6 months after the workshops, through in-person visits to each company, it was confirmed that more than half of these 47 plans had been completed; 25 plans (53.2%) had been completed as planned, 8 (17.0%) were in processing, and 14 (29.8%) had not yet been put into practice.
CONCLUSIONS
The study findings confirmed that the PAOT program holds strong potential as an intervention method to prevent WRMSDs in Small and Medium sized Enterprises, although the final results have not been fully assessed yet.

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Effectiveness of participatory training for the promotion of work-related health and safety among Korean farmers
Jin-Seok KIM, Seong-Yong YOON, Seong-Yong CHO, Sang-Kyu KIM, In-Sung CHUNG, Hyeong-Soo SHIN
INDUSTRIAL HEALTH.2017; 55(4): 391. CrossRef
Effectiveness of Participatory Action-Oriented Training (PAOT) Methods for the Management Metabolic Syndrome in Korean Manufacture Workers for Three-years
Jungsuk Lee, Sin Kam, Seongyong Yoon
Korean Journal of Occupational Health Nursing.2016; 25(4): 384. CrossRef
Agricultural Labor Environment and Work Safety
Kyung-Suk Lee, Insoo Kim, Min-Tae Seo, Myungsun Ko, Kyung-Su Kim, Hye-Seon Chae, Dong-Phil Choi
Journal of the Ergonomics Society of Korea.2016; 35(4): 205. CrossRef
The Effect of Metabolic syndrome Management Program Applying Participatory Action-Oriented Training Principle
Seong-Yong Yoon, Kuck-Hyeun Woo, Hwa-Sung Kim, Yong-Bae Kim, Jin-Seok Kim, Seong-Yong Jo, Sung-Soo Lee
Korean Journal of Health Education and Promotion.2014; 31(5): 81. CrossRef
Development of an intervention to prevent work-related musculoskeletal disorders among hospital nurses based on the participatory approach
Soon-Lae Kim, Jong-Eun Lee
Applied Ergonomics.2010; 41(3): 454. CrossRef
Participatory Action Oriented Training for Hospital Nurses (PAOTHN) Program to Prevent Musculoskeletal Disorders
Jong‐Eun Lee, Soon‐Lae Kim, Hye‐Sun Jung, Jung‐Wan Koo, Kuck‐Hyeun Woo, Miyong T. Kim
Journal of Occupational Health.2009; 51(4): 370. CrossRef

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A Case of Toxic Hepatitis in a Worker Exposed to a Cleansing Agent Mainly Composed of Methylene Chloride: Bong Goo Ha, Jin Seok Kim, Jay Young Yu, Kuck Hyun Woo, Jung Oh Ham, Seong Yong Yoon, Yong Seok Jang, Sang Je Jung; Korean Journal of Occupational and Environmental Medicine 2004;16(2):210-219. Published online June 30, 2004; DOI: https://doi.org/10.35371/kjoem.2004.16.2.210

Abstract PDF

OBJECTIVES
To report a case of toxic hepatitis in a worker exposed to a cleansing agent mainly composed of methylene chloride.
METHODS
A 27-year-old female worker who had worked in an inspection and packing position of semiconductor parts in a factory using methylene chloride as a metal cleansing solvent was hospitalized due to fever, chill and generalized aches. We evaluated her with blood tests, abdominal ultrasonographic scan and abdominal CT scan and also took her occupational history.
RESULTS
The patient showed acute hepatitis in blood and radiologic tests after admission. The serologic tests for viral hepatitis A, B, C and autoimmune hepatitis were negative. She had no history of significant alcohol use, recent medication or drug allergy. After admission, her symptoms were improved and liver enzyme levels(AST and ALT) were markedly reduced. She returned to her workplace after discharge. Thereafter, however, her previous symptoms were recurred and she was hospitalized again 2 days after returning to her workplace. After this second admission, she showed acute hepatitis in blood tests and her symptoms were improved and liver enzyme levels were markedly reduced with the same pattern as those of the first admission. On the 11th day of the second admission, liver enzyme levels were normalized and she was discharged from hospital.
CONCLUSIONS
We presume that this patient`s liver injury was related to the methylene chloride presence at her workplace due to her clinical symptoms, blood tests, radiologic tests and occupational history.

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Death Due to Acrylic Adhesive (Dichloromethane): A Case Report
Ho Bong Hyun, Jo Youn Park, Hyeong Sin Park, Jeong Hyun Hong, Myung Guon Ko, Hyun Wook Kang, Hyoung Soo Lim
Korean Journal of Legal Medicine.2022; 46(4): 133. CrossRef
A case report of toxic hepatitis caused by chloroform in automotive parts manufacturer coating process
Jong Hyun Hwang, Jung Il Kim
Annals of Occupational and Environmental Medicine.2022;[Epub] CrossRef
Occupational Hepatic Disorders in Korea
Hyoung Ryoul Kim, Tae Woo Kim
Journal of Korean Medical Science.2010; 25(Suppl): S36. CrossRef

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