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Asbestos Exposure and Health Risk Assessment for the Residents Near the Abandoned Mining Area in Chungbuk, Korea (충북지역 폐석면광산 인근주민의 석면노출과 건강위해도 평가)

  • Shin, Jin-Ho;Oh, Seok-Ryul;Hwang, Soon-Yong;Chung, Sook-Nye;Kim, Ji-Hui;Nam, Eun-Jung;Lee, Jin-Hyo;Choi, Hee-Jin;Eom, Seok-Won;Chae, Young-Zoo;Park, Chul-Hwi
    • Journal of Korean Society of Environmental Engineers
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    • v.34 no.5
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    • pp.345-350
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    • 2012
  • To investigate the exposure and health risk assessment for the residents near the D-asbestos mine in Chungbuk, Korea. We analyzed asbestos in the 20 ambient air and 23 activity based samples near the mine. The airborne sample results are showed that 8 of 20 samples ranged between 0.0025 to 0.0029 f/cc (fiber per cubic centimeter) and the others were below the detection limit by phase contrast microscopy (PCM). In addition, asbestos fibers were under the detection limit or not being by transmission electron microscopy (TEM). Based on interview and survey targeting the local residents, we made the activity based sampling (ABS) scenarios fit to the conditions of field. At the same time, we calculated the excess lifetime cancer risk (ELCR) of these ABS scenarios according to the ELCR average value and 95% upper confidence limit (UCL). At the case of weed whacking, soil digging and sweeping yard scenario, 95% UCL of ELCR exceeded the $1{\times}10^{-4}$, acceptable risk range for exposure. Based on our study results, it is necessary safety measures such as risk communication, abatement or management of naturally occurring asbestos (NOA).

A Study on Heavy Metal Concentrations of Oxidized Hair Coloring Products in Korea Market (한국에서 유통 중인 산화형 염모제의 중금속 농도에 관한 연구)

  • Choi, Chae Man;Hong, Mi Sun;Lee, Yun Jung;Kim, Hwa Soon;Kim, Hyun Jung;Kim, Jung Hun;Chae, Young Zoo
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.39 no.3
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    • pp.241-249
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    • 2013
  • This study was aimed to provide the fundamental data about oxidized hair color products. For this reason, we collected 125 oxidized hair color products, which were distributed in domestic market from January to October, 2012, and measured the heavy metal concentrations of lead, arsenic, cadmium, chromium, manganese, nickel, copper in the samples. Results were compared by domestic, foreign, henna, type and color. The average metal concentrations were as follows; 0.211 ${\mu}g/g$ for lead, 0.008 ${\mu}g/g$ for cadmium, 0.051 ${\mu}g/g$ for arsenic, 0.954 ${\mu}g/g$ for chromium, 6.250 ${\mu}g/g$ for manganese, 0.591 ${\mu}g/g$ for nickel and 0.544 ${\mu}g/g$ for copper. In case of lead and arsenic, the concentrations were much less than the regulated amount (20 ${\mu}g/g$ and 10 ${\mu}g/g$, respectively) suggested by MFDS (Ministry of Food and Drug Safety). In henna (p < 0.05), the concentrations were significantly higher than those of other domestic and foreign oxidized hair color products as follows; 1.264 ${\mu}g/g$ for lead, 0.267 ${\mu}g/g$ for arsenic, 0.025 ${\mu}g/g$ for cadmium, 4.055 ${\mu}g/g$ for chromium, 72.044 ${\mu}g/g$ for manganese, 3.076 ${\mu}g/g$ for nickel and 4.640 ${\mu}g/g$ for copper. Statistically, it showed that the heavy metal concentrations were quite different for the different types of hair color products. The cream and liquid type products had the highest average concentration in chromium (0.708 ${\mu}g/g$, 0.478 ${\mu}g/g$, respectively). On the other hand, powder type products showed the highest concentration in manganese (60.041 ${\mu}g/g$). In addition, the concentrations of heavy metals and the color of products are not quite correlated. It was shown that average concentrations of lead and chromium were higher for yellow, chromium for red and pink, manganese for brown and black, and nickel for green.

Analysis and Uncertainty Estimation of Zearalenone in Cereal-Based Products by LC-MS/MS (LC-MS/MS를 이용한 곡류가공품의 제랄레논 분석과 측정불확도 추정)

  • Choi, Eun Jung;Kang, Sung Tae;Jung, So Young;Shin, Jae Min;Jang, Min Su;Lee, Sang Me;Kim, Jung Hun;Chae, Young Zoo
    • Korean Journal of Food Science and Technology
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    • v.44 no.6
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    • pp.658-665
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    • 2012
  • A survey of zearalenone contamination was conducted on cereal-based products by using an immunoaffinity column with LC-MS/MS. The calibration curve showed good lineality, with correlation coefficients ($R^2$) of 0.999 in the concentration range from 1 to 250 ng/mL. The limits of detection and quantification were approximately $0.3{\mu}g/kg$ and $1.0{\mu}g/kg$, respectively. The recoveries in the barley tea, Misutgaru and snack ranged from 73.6-107.8%. Zearalenone was detected in 10 samples (11.2% incidence). The highest zearalenone contamination level was $29.7{\mu}g/kg$ in the Misutgaru. This survey was conducted with uncertainty of measurement. The expanded uncertainty for zearalenone was estimated to be $44.9{\pm}5.0{\mu}g/kg$ (k=2, 95% confidence level) and $128.7{\pm}7.9{\mu}g/kg$ (k=2, 95% confidence level) for barley tea, $30.7{\pm}5.8{\mu}g/kg$ (k=2, 95% confidence level) and $173.7{\pm}14.9{\mu}g/kg$ (k=2.26, 95% confidence level) for Misutgaru, and $37.2{\pm}7.4{\mu}g/kg$ (k=2.31, 95% confidence level) and $151.0{\pm}10.4{\mu}g/kg$ (k=2, 95% confidence level) snack at the level of $41.7{\mu}g/kg$ and $166.7{\mu}g/kg$, respectively.

Treatment by Injection-Acupuncture with Apitoxin and Apitoxin Combined by Chinese Herbal Medicine in Patients with Canine Bind Limb Paralysis : Case Report (후지마비견(後肢痲痺犬)에 대한 봉독(蜂毒) 약침(藥鍼) 및 봉독(蜂毒) 약침(藥鍼)과 한약제(漢藥劑)의 병용치료(倂用治療) : 증례보고(症例報告))

  • Jun, Hyung-Kyou;Park, Se-Kun;Kim, Duck-Hwan;Kim, Mun-Ho;Hsu, Chin-Yuan;Hsu, Chin-Ling;Liao, Jim-Cai;Chueh, Hao-Jen;Cheng, Han-Wen
    • Journal of Veterinary Clinics
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    • v.24 no.2
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    • pp.225-228
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    • 2007
  • The therapy by injection-acupuncture (AP) with bee-venom (apitoxin) and injection-AP with apitoxin combined by administration of Chinese herbal medicine was applied in 2 cases with canine intervertebral disc disease (IVDD). Case 1 was diagnosed as thoraco-lumbar IVDD (T11-T12, T12-T13, L3-L4 and L4-L5) and case 2 was diagnosed as IVDD at T10-T11 and T12-T13, respectively Injection-AP with apitoxin($Apitoxinc{(R)}$, total $200{\mu}g$ of apitoxin, 0.1 ml/acupoint) plus physical exercise (walking with gocart, TID/day) and aquatherapy (swimming treatment, BID/week) were given to each patient. The used acupoints were GV20 (Bai Hui), GB30 (Huan Tiao), ST36 (Zu San Li), GB34 (Yang Ling Quan), ST40 (Feng Long), ST41 (Jie Xi) and BL40 (Wei Zhong), the lesions, and trigger points. In addition, Chinese herbal medicine (Koda Pharmaceutical Co., Taiwan) including Zheng Gu Zi Jin Dan (正骨紫金丹 : 1 g), Shiuh Duann(續斷 : 0.2 g), Du Zhong(杜仲 : 0.2 g), Mo Yao(沒藥 : 0.2 g), Ru Xian(乳香 : 0.2 g) and Pyrite(自然銅 : 0.2 g) were orallly mdeicated BID for 0\9days in case 2. Walking was possible after session 11 for 4 weeks in case 1 and after session 6 for 2 weeks in case 2, respectively.

Analysis and Risk Assessment of Benzo(a)pyrene in Edible Oils (식용유지류 중 벤조피렌의 함량 분석 및 안전성 평가)

  • Jang, Mi-Ra;Hong, Mi-Sun;Jung, So-Young;Choi, Bu-Chuhl;Lee, Kyeong-Ah;Kum, Jin-Young;Kim, Il-Young;Kim, Jung-Hun;Chae, Young-Zoo
    • Journal of Food Hygiene and Safety
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    • v.29 no.2
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    • pp.141-145
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    • 2014
  • To assess the health risk for benzo(a)pyrene by the intake of edible oils, 288 cases of edible oils collected from food markets were analysed using the high performance liquid chromatography with fluorescence detector. The levels of benzo(a)pyrene were from non-detection to $4.78{\mu}g/kg$, and the average was $0.11{\mu}g/kg$. The chronic daily exposures of benzo(a)pyrene for total population group and consumer-only group were estimated using the food consumption data in the fifth Korea National Health and Nutrition Examination Survey in 2011. The estimated daily intake of benzo(a)pyrene was $4.26{\times}10^{-3}ng/kg$ b.w./day for total population group and $7.64{\times}10^{-3}ng/kg$ b.w./day for consumer-only group. The MOE (margin of exposure) of benzo(a)pyrene for total population group and consumer-only group was $7.28{\times}10^7{\sim}1.74{\times}10^8$ and $3.95{\times}10^7{\sim}9.42{\times}10^7$, respectively. Accordingly, the health risk from benzo(a)pyrene caused by the intake of edible oils was considered as a very low level.

An Epidemiologic Survey of Strabismus and Nystagmus in South Korea: KNHANES V (인구역학적 요인에 따른 한국인의 사시 및 눈떨림 유병률 조사: 제5기 국민건강영양조사 자료)

  • Lee, Ji Eun;Kim, Chang Zoo;Nam, Ki Yup;Lee, Seung Uk;Lee, Sang Joon
    • Journal of The Korean Ophthalmological Society
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    • v.58 no.11
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    • pp.1260-1268
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    • 2017
  • Purpose: Strabismus affects any age and represents various functional or non-functional eye problems. This population-based study was conducted to determine the prevalence of strabismus and nystagmus in South Korea according to various sociodemographic factors. Methods: We acquired data from the Korea National Health and Nutrition Examination Survey, a nation-wide cross-sectional survey and examinations of the non-institutionalized civilian population in South Korea (n = 30,538), conducted from July 2008 to December 2011. The prevalence of strabismus and nystagmus were verified, and associated sociodemographic factors was evaluated. Results: The overall prevalence of strabismic disorder in participants over 3 years of age was $1.4{\pm}0.1%$ (95% confidence interval [CI] 1.3-1.6%; $1.5{\pm}0.1%$ in males, $1.3{\pm}0.1%$ in females). The prevalence of exodeviation (15 or more prism diopters), esodeviation (10 or more prism diopters), vertical deviation, and other complicated strabismus and nystagmus was 1.0%, 0.2%, 0.2%, 0.1% and 0.1% respectively. The prevalence was highest in the 6 to 15-year age group ($1.9{\pm}0.3%$), and lowest in the 40 to 49 years age group ($0.8{\pm}0.1%$) (p = 0.005). There were no statistically significant differences for gender, region, residential area, household income, educational level and occupation. Conclusions: This nation-wide epidemiologic study demonstrated that the prevalence of strabismus and nystagmus according to various sociodemographic factors in South Korea was not statistically significant except for age group. Further investigations are required based on more surveys to better recognize the etiologic or risk factors that may be related to strabismus and nystagmus.

A Study on the Online Newspaper Archive : Focusing on Domestic and International Case Studies (온라인 신문 아카이브 연구 국내외 구축 사례를 중심으로)

  • Song, Zoo Hyung
    • The Korean Journal of Archival Studies
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    • no.48
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    • pp.93-139
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    • 2016
  • Aside from serving as a body that monitors and criticizes the government through reviews and comments on public issues, newspapers can also form and spread public opinion. Metadata contains certain picture records and, in the case of local newspapers, the former is an important means of obtaining locality. Furthermore, advertising in newspapers and the way of editing in newspapers can be viewed as a representation of the times. For the value of archiving in newspapers when a documentation strategy is established, the newspaper is considered as a top priority that should be collected. A newspaper archive that will handle preservation and management carries huge significance in many ways. Journalists use them to write articles while scholars can use a newspaper archive for academic purposes. Also, the NIE is a type of a practical usage of such an archive. In the digital age, the newspaper archive has an important position because it is located in the core of MAM, which integrates and manages the media asset. With this, there are prospects that an online archive will perform a new role in the production of newspapers and the management of publishing companies. Korea Integrated News Database System (KINDS), an integrated article database, began its service in 1991, whereas Naver operates an online newspaper archive called "News Library." Initially, KINDS received an enthusiastic response, but nowadays, the utilization ratio continues to decrease because of the omission of some major newspapers, such as Chosun Ilbo and JoongAng Ilbo, and the numerous user interface problems it poses. Despite these, however, the system still presents several advantages. For example, it is easy to access freely because there is a set budget for the public, and accessibility to local papers is simple. A national library consistently carries out the digitalization of time-honored newspapers. In addition, individual newspaper companies have also started the service, but it is not enough for such to be labeled an archive. In the United States (US), "Chronicling America"-led by the Library of Congress with funding from the National Endowment for the Humanities-is in the process of digitalizing historic newspapers. The universities of each state and historical association provide funds to their public library for the digitalization of local papers. In the United Kingdom, the British Library is constructing an online newspaper archive called "The British Newspaper Archive," but unlike the one in the US, this service charges a usage fee. The Joint Information Systems Committee has also invested in "The British Newspaper Archive," and its construction is still ongoing. ProQuest Archiver and Gale NewsVault are the representative platforms because of their efficiency and how they have established the standardization of newspapers. Now, it is time to change the way we understand things, and a drastic investment is required to improve the domestic and international online newspaper archive.

Interpretation of Landscape Restoration and Maintenance in Changgyeonggung Palace through the Preservation Principles of Cultural Heritage (문화재 보존원칙으로 본 창경궁 조경 복원정비 양상 해석)

  • Kang, Jae-Ung;So, Hyun-Su
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.40 no.4
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    • pp.15-31
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    • 2022
  • This study interpreted the logical validity of the landscape restoration and maintenance patterns of Changgyeonggung Palace, where modern landscapes coexist. The results of the study are as follows; First, the changes in the landscape restoration and maintenance attitude concerning the Changgyeonggung management organization were identified. With the establishment of the Office of the Imperial Garden, an imperial property was nationalized. The Cultural Heritage Managing Department was opened in 1961, and Changgyeonggung Palace were preserved as designated as historical sites in 1963. An environmental purification was implemented by the Changgyeonggung Office as a follow-up measure for restoration in 1983. As the Cultural Heritage Administration promoted in 1999 and the Royal Palaces and Tombs Center was established in 2019, the palace has been managed professionally as a palace landscape to provide a viewing environment. Second, In the 'Purification Period of Changgyeongwon(1954~1977)', environmental purification was carried out to restore amusement facilities, install facilities for cherry blossom viewing, and develop the place into a national zoo. In the 'Reconstruction Period of Changgyeonggung(1983~1986)', restoring function as an urban park, reserving green areas, the outside space was recreated in the traditional feel, and the forest area was generally maintained. In the 'Supplementation Period of Traditional Landscape Architecture Space(1987~2009)', a uniform green landscape was created with pine trees and various vegetation landscapes centered on the flower beds. In the 'Improvement and Maintenance Period of Viewing Environment(2010~2022), a master plan was reestablished on the premise of utilization, but maintenance has been carried out in a small scale centering on unit space. Third, regarding the validity of the landscape restoration and maintenance, It was found in terms of 'originality' that the recovery of the palace system has not been expanded for over 40 years in existing areas. The 'characteristics of the times', which shows whether multi-layered history was taken into account, Changgyeongwon was excluded from the discussion in the process of setting the base year twice. In terms of 'integrity,' the area of the Grand Greenhouse where the historic states coexists needs a maintenance policy that binds the greenhouse, carpet flower bed, and Chundangji Pond. The 'utility' identified as the utilization of spaces suggests the establishment of a sense of place in the Grand Greenhouse area, which is concentrated with programs different from other areas.

Macromineral intake in non-alcoholic beverages for children and adolescents: Using the Fourth Korea National Health and Nutrition Examination Survey (KNHANES IV, 2007-2009) (어린이와 청소년의 비알콜성음료 섭취에 따른 다량무기질 섭취량 평가: 제 4기 국민건강영양조사 자료를 활용하여)

  • Kim, Sung Dan;Moon, Hyun-Kyung;Park, Ju Sung;Lee, Yong Chul;Shin, Gi Young;Jo, Han Bin;Kim, Bog Soon;Kim, Jung Hun;Chae, Young Zoo
    • Journal of Nutrition and Health
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    • v.46 no.1
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    • pp.50-60
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    • 2013
  • The aims of this study were to estimate daily intake of macrominerals from beverages, liquid teas, and liquid coffees and to evaluate their potential health risks for Korean children and adolescents (1-to 19 years old). Assessment of dietary intake was conducted using the actual level of sodium, calcium, phosphorus, potassium, and magnesium in non-alcoholic beverages and (207 beverages, 19 liquid teas, and 24 liquid coffees) the food consumption amount drawn from "The Fourth Korea National Health and Nutrition Examination Survey (2007-2009)". To estimate the dietary intake of non-alcoholic beverages, 6,082 children and adolescents (Scenario I) were compared with 1,704 non-alcoholic beverage consumption subjects among them (Scenario II). Calculation of the estimated daily intake of macrominerals was based on point estimates and probabilistic estimates. The values of probabilistic macromineral intake, which is a Monte-Carlo approach considering probabilistic density functions of variables, were presented using the probabilistic model. The level of safety for macrominerals was evaluated by comparison with population nutrient intake goal (Goal, 2.0 g/day) for sodium, tolerable upper intake level (UL) for calcium (2,500 mg/day) and phosphorus (3,000-3,500 mg/day) set by the Korean Nutrition Society (Dietary Reference Intakes for Koreans, KDRI). For total children and adolescents (Scenario I), mean daily intake of sodium, calcium, phosphorus, potassium, and magnesium estimated by probabilistic estimates using Monte Carlo simulation was, respectively, 7.93, 10.92, 6.73, 23.41, and 1.11, and 95th percentile daily intake of those was, respectively, 28.02, 44.86, 27.43, 98.14, and 3.87 mg/day. For consumers-only (Scenario II), mean daily intake of sodium, calcium, phosphorus, potassium, and magnesium estimated by probabilistic estimates using Monte Carlo simulation was, respectively, 19.10, 25.77, 15.83, 56.56, and 2.86 mg/day, and 95th percentile daily intake of those was, respectively, 62.67, 101.95, 62.09, 227.92, and 8.67 mg/day. For Scenarios I II, sodium, calcium, and phosphorus did not have a mean an 95th percentile intake that met or exceeded the 5% of Goal and UL.

The Content of Minerals and Vitamins in Commercial Beverages and Liquid Teas (유통음료 및 액상차 중의 비타민과 미네랄 함량)

  • Shin, Young;Kim, Sung-Dan;Kim, Bog-Soon;Yun, Eun-Sun;Chang, Min-Su;Jung, Sun-Ok;Lee, Yong-Cheol;Kim, Jung-Hun;Chae, Young-Zoo
    • Journal of Food Hygiene and Safety
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    • v.26 no.4
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    • pp.322-329
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    • 2011
  • This study was done to analyze the contents of minerals and vitamins to compare the measured values of minerals, vitamins with labeled values of them in food labeling and to investigate the ratio of measured values to labeled values in 437 specimen with minerals and vitamins - fortified commercial beverages and liquid teas. Content of calcium and sodium in samples after microwave digestion was analyzed with an ICP-OES (Inductively Coupled Plasma Optical Emission Spectrometer) and vitamins were determined using by HPLC (High Performance Liquid Chromatography). The measured values of calcium were ranged 80.3~142.6% of the labeled values in 21 samples composed calcium - fortified commercial beverages and liquid teas. In case of sodium, measured values were investigated 33.9~48.5% of the labeled values in 21 sports beverages. The measured values of vitamin C, vitamin $B_2$ and niacin were ranged 99.7~2003.6, 81.1~336.7, 90.7~393.2% of the labeled values in vitamins - fortified commercial beverages and liquid teas, 57, 12, 11 samples. To support achievement of the accurate nutrition label, there must be program and initiatives for better understanding and guidances on food labelling and nutrition for food manufacture.