• 대한물리의학회지
• /
• 제18권4호
• /
• pp.57-66
• /
• 2023

PURPOSE: This research investigated clinical hazardous components and analyzed the proportion of sarcopenia among young Korean women. METHODS: The cross-sectional study included 1,236 women aged 20 to 29 years, categorized into two groups according to their skeletal muscle mass index (SMI). Of these, 20 participants were placed in the sarcopenia group, while 1,216 were included in the normal group. The analysis involved hazardous components including body dimensions, clinical indicators, and behavioral trait variables: height, weight, body mass index, waist circumference, skeletal muscle mass index, systolic and diastolic blood pressure, blood laboratory tests assessing fasting glucose, triglycerides, total cholesterol, as well as smoking habits and alcohol consumption. Complex sampling analysis was used to analyze the proportion and hazardous components of sarcopenia. RESULTS: The proportion of sarcopenia was at 1.76% (95% of CI: 1.08-2.83). Anthropometric measurements, such as height, BMI, and WC, exhibited significant differences between the groups (p < .05). However, there was no significant difference in weight (p > .05) between the two groups. Among the clinical indicators, SBP, DBP, FBG, serum triglycerides, and total TC found to be significant hazardous components for sarcopenia within both groups (p < .05). Smoking status as a behavioral trait was significant as well (p < .05), unlike alcohol consumption (p > .05). CONCLUSION: This study discerned both the proportion of sarcopenia and the hazardous components associated with it among community-dwelling women of a young age.

• 대한지리학회지
• /
• 제38권4호
• /
• pp.478-489
• /
• 2003

기존의 국내에서 안개 관련된 연구는 안개 자체에 대한 연구와 안개의 지역적인 분포에 대한 연구가 그 주류를 이루어 왔다. 본 연구는 도로상에서 시정을 저하시켜서 안전한 운행에 지장을 주고 교통-사고를 유발시킬 수 있는 안개를 도로위험안개로 정의하고 그 위험정도를 정량적으로 나타낼 수 있는 위험안개 발생지표를 개발하였다. 이 지표는 안전운행에 영향을 주고 사고를 유발시킬 수 있는 다양한 사항, 즉 안개의 발생빈도를 나타내는 안개발생일수, 안개의 지속시간, 시정거리 등을 고려하여 개발되었으며 개발된 지표에 근거하여 국내의 위험안개발생지역의 분포와 그 위험정도를 파악할 수 있었다. 본 연구는 한국의 안개특성을 고려하여서 위험정도를 정량화하고 가중치를 개발한 국내 최초의 연구라는 점에서 의의가 있고 개발된 지표에 근거한 위험지역의 안전관리 대상 선정과 그에 대한 안전시설물의 설치, 사고위험지점의 원인분석 및 그에 대한 대처방안 등을 수립하는데 유용한 자료로 사용될 수 있다. 더 나아가, 외국의 경우와 같이 도로의 노선선정시 위험안개발생지표가 높은 지역에 대해서는 노선의 변경 또는 노선선택 후 그에 대한 대책수립과 같은 적극적인 안전관리가 가능하다.

• 한국산업보건학회지
• /
• 제6권2호
• /
• pp.281-291
• /
• 1996

458 female workers working in the small and medium scaled industries in Inchon area were surveyed to study their general characteristics, health behavior, working and environmental conditions, awareness of exposure at hazardous materials, current health status, and degree of working satisfaction. Self-administered questionnaire was distributed to the female workers with the explanation by trained interviewer on the purpose of survey and the method how to answer. The results were as follows : (1) 75.5% of the respondents are living with their families and others are living in domitary or rent house for herself. Age distribution ranges from teenagers to warren in their forties. In marital status 69.0% of workers are single and 31.0% of them have ever married. 69.4% of workers are high school graduate. The size of factory is 48.3% with less than 300 workers, 42.1% with 300~500 workers. (2) Most of the workers(86.7%) are full time workers, 52% of the respondents have working experiences in other factories. More than 65% have fewer than 5 years working experience. (3) The awareness of exposure at noise was 33% of respondents, it was significantly different by skilled status. The awareness of exposure at dust, other hazardous material was each 13.3%, 12.4% of respondents. (4) 26% of them are unsatisfied with their working cognitions and 43.7% of them are unsatisfied with their welfare in occupational system unsatisfactory rate of promotion is higher in the unmarried workers(45.6%), skilled workers(47.2%), full time workers(47.4%), long term workers(50%), and awareness group of exposure hazardous material(51.3%), compared to married women workers, unskilled workers, part-time workers, short term workers and unawareness group of exposure at hazardous materials. (5) The index of working satisfaction is rated on a scale of 1 to 10 with the higher point indicating higher satisfaction. Among the selected variables, marital status, working status, the awareness of exposure at hazardous materials, were statistically significant with the index of working satisfaction. (6) By multiple regression analysis showed that the determinant factors of index of working condition were health index, the awareness of exposure at dust, the awareness of exposure other hazardous materials, marital status and working period. In conclusion, there is a significant relationship between the awareness of exposure at hazardous material the index of working satisfaction. Therefore if the workers are less exposed to the hazardous material and are educated properly they will be more satisfied with their work thus improving their health and productivity. Finally, with the result of this study, there is a great need for the development of a health promotion program and a welfare policy for small-scale factories.

• 한국환경보건학회지
• /
• 제41권4호
• /
• pp.259-267
• /
• 2015

Objectives: This study evaluated the regional and seasonal concentrations of ambient hazardous heavy metals in an industrial complex area in Daegu City. Methods: A total of 64 SPM (Suspended Particulate Matter) samples were collected in non-industrial and industrial areas during 2014 and were analyzed for hazardous heavy metals elements (As, Cd, Mn, Ni, Pb) with ICP after acid extraction. Results: SPM and hazardous heavy metals concentrations showed regional (industrial complex area>non-industrial complex area) and seasonal (spring, winter>fall, summer) variations. All of the hazardous heavy metals were influenced by anthropogenic sources. The pollution index of hazardous heavy metals was very low, showing roughly one-quarter of the level of the air quality guidelines of WHO. The correlation analysis among SPM and hazardous heavy metals indicated that components of non-industrial complex areas were more related to each other than those of industrial complex areas, and the correlation in the winter was higher than in other seasons. Conclusion: It is necessary to control air pollution sources and establish related policy because hazardous heavy metals from industrial areas can influence residential areas.

• Toxicological Research
• /
• 제28권4호
• /
• pp.269-277
• /
• 2012

The purpose of this study was to understand the mechanism of cardiovascular disease (CVD) caused by exposure to hazardous chemicals. We investigated changes in the symptoms of metabolic syndrome, which is strongly related to CVD, and in levels of other CVD risk factors, with a special emphasis on the roles of catecholamines and oxidative stress. The results revealed that neither body mass index (BMI) nor waist and hip circumferences were associated with exposure to hazardous chemicals. Among metabolic syndrome criteria, only HDL-cholesterol level increased on exposure to hazardous chemicals. Levels of epinephrine (EP) and norepinephrine (NEP) were not influenced by exposure to hazardous chemicals; however, the total antioxidative capacity (TAC) reduced because of increased oxidative stress. Both hazardous chemical exposure level and metabolite excretion were related to EP, NEP, and the oxidative stress index (OSI). Logistic regression analysis with these factors as independent variables and metabolic syndrome criteria as dependent variables revealed that EP was associated with blood pressure, and NEP with metabolic syndrome in the chemical-exposed group. In conclusion, the results suggest that reactive oxygen species generated and oxidative stress due to exposure to hazardous chemicals act as mediators and cause changes in the physiological levels of EP and NEP to increase blood pressure. This ultimately leads to the development of CVD through increase in cholesterol, triglyceride, and blood glucose levels by lipid peroxidation.

• Advances in environmental research
• /
• 제5권2호
• /
• pp.79-94
• /
• 2016

In order to evaluate the contamination and health risk, levels of six hazardous elements i.e., Cr, Ni, Cu, As, Cd and Pb in soils of 12 different land-uses were measured. The average concentration of Cu, Cr, Ni, Pb, As and Cd in soils were 267, 239, 206, 195, 58 and 16 mg/kg, respectively. Levels of each metal exceeded the environmental action level for soils, which could pose significant risk to human. The metal concentrations were subsequently used to establish hazard indices (for adults and children) where the 5th and 95th percentile values were used to derive the hazard index through different exposure pathways (ingestion, dermal contact and inhalation). Considering the total exposure through each of the three pathways, the hazard index elucidates that there was a potency of non-cancer risk at most of the sites for both the adults and children. The findings of this study suggested that different land-use soils were severely contaminated with hazardous elements and attention is needed on the potential health risks to the exposed inhabitants.

• 대한통합의학회지
• /
• 제12권2호
• /
• pp.1-10
• /
• 2024

Purpose : Sarcopenic obesity is associated with adverse health consequences in females. Nevertheless, there has been limited research on the hazardous components and prevailing rates of sarcopenic obesity among younger women. This study aimed to identify the hazardous components and prevailing rates of sarcopenic obesity in younger females. Methods : This study utilized data based on 2008~2011 from the Korea National Health and Nutrition Examination Surveys by the centers for disease control and prevention. The analysis was concentrated on a subset of 1,520 women aged between 30 and 39 years of age. The participants answered a questionnaire to gather demographic information. They then underwent a physical examination to measure the human detention variables, which was conducted utilizing bioelectrical impedance analysis. The blood pressure and blood laboratory tests were determined using established laboratory protocols for evaluating blood parameters. Results : This study included 1,520 patients aged 30~39 years old. The mean age of the participants was 34.97 (years)±2.74 and the overall prevailing rate was 1.84 %. The hazard components in human dimensions were the height, weight, body mass index (BMI), waist circumference (WC) and skeletal muscle mass index (SMI). The hazard components in biochemical and blood pressure were high fasting glucose, increased triglyceride, elevated total cholesterol, high systolic blood pressure, and increased diastolic blood pressure with p-values <.05. Conclusion : This study examined the hazardous components and prevailing rates of sarcopenic obesity in younger women living in the community. The results contribute to the current body of knowledge on sarcopenic obesity and shed light on possible hazardous components in a younger female population. Based on these findings, there should be increased health and medical attention towards the prevention, management, and health promotion related to reducing risk factors for sarcopenic obesity in younger women.

• 대한영양사협회학술지
• /
• 제17권1호
• /
• pp.1-17
• /
• 2011

The purpose of this study is to assess dietary habits of the hazardous drinkers and the heavy episodic drinkers in Korean adults. The respondents consisted of 814 adults (415 male and 399 female) who are 20~69 years of age by random selection in partial area of Gyeonggi. A self-report questionnaire was used to cover questions regarding dietary habits, drinking behavior and physical activity. Total dietary habit scores in hazardous drinker group (63.25) was significantly lower than normal drinker group (68.61) in male respondents (P<0.001). Male hazardous drinker group less eat fruit (P<0.01), eat more processed food (P<0.01) than male normal drinker group. Female hazardous drinker group doesn't eat 3 meals a day than female normal drinker group. Total dietary habit scores in heavy episodic drinker group [occasional heavy episodic drinker (62.76), frequent heavy episodic drinker (63.77)] were significantly lower than abstainer group (69.16) in male respondents (P<0.001). Male heavy episodic drinker group less eat fruit (P<0.01), eats more processed food (P<0.01), salty food (P<0.001), sugary food (P<0.05), animal fat (P<0.01) and eats out often (P<0.01) than male abstainer group. Male heavy episodic drinker group significantly less apply nutrition knowledge to their life (P<0.05) and less exercise everyday-more than 1 hour (P<0.01) than male abstainer group. In drinking behavior index, AUDIT (alcohol use disorder identification test) score was negatively correlated with age (P<0.01). There was a positive correlation between dietary habits and physical activity (P<0.01) but there was negative correlation between dietary habits and AUDIT score (P<0.01). This study highlights that AUDIT score was negatively influenced dietary habits.

• 한국지구과학회지
• /
• 제37권6호
• /
• pp.346-358
• /
• 2016

한반도 주변의 일본, 중국(대만 포함) 및 러시아 캄차카의 활동적인 화산에 대한 289개의 화산DB를 구축하였으며, 이들 중 잠재적으로 폭발적인 분화를 하여 한반도에 광역화산재해를 유발할 수 있는 위험 화산체 29개(백두산과 울릉도, 일본 화산 27개)를 선정하였다. 이들의 선정 기준은 화산의 활동성 유무, 폭발적 분화 위험 암종 포함 여부, 서울과의 거리, 그리고 화산폭발지수(VEI) 4 이상의 플리니식 분화이력을 가진 화산체 등이다. 본 연구 결과는 광역화산재해를 유발하여 국내에 영향을 줄 가능성이 높은 위험화산을 선별하는데 활용할 것이다. 그리고 이들 위험화산 활동에 의해 발생한 화산재의 확산 범위를 예측하고 한반도에 미치는 영향을 분석하는 화산재해 피해 예측을 위한 방재 차원의 대응 연구에 도움을 줄 것으로 기대한다.

• Korean Chemical Engineering Research
• /
• 제52권6호
• /
• pp.755-767
• /
• 2014

염소(Chlorine)는 지구상에서 가장 많이 생산되고 사용되는 화학물질 중 하나로, 비가연성 물질이지만 독성, 오존층 파괴 및 활발한 반응성을 지닌 물질이며, 현대사회는 염소와 그 유도체의 사용 없이 윤택한 삶을 유지하는 것이 거의 불가능할 정도로 의약품과 세정제, 방취제, 살균제, 제초제, 살충제 및 플라스틱을 비롯하여 공산품의 40% 이상에 사용되고 있는 지구상의 대표적인 화학물질이다. 국내의 경우, 염소는 전국의 다양한 사업장(중소기업, 정수장, 운송회사 등)에서 취급 및 유통되고 있지만 관련 운송위험과 유해성 평가 연구가 부족하여, 국내외 염소누출 관련 사고에 대해 분석 및 염소 취급 및 유통에 대한 유해성 평가를 시도하였다. 특히 화학물질 운송위험지수를 국내 실정에 맞도록 모델화하였고, 액화 염소를 포함한 13종 화학물질의 운송위험성 모사를 통해 유해성 평가를 실시하였다. 이는 염소를 비롯한 다양한 화학물질에 대한 화학물질 운송위험지수 모델을 적용하여 정형화된 유통 유해성평가를 할 수 있을 것으로 판단된다.