• 분석과학
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• 제35권1호
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• pp.15-23
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• 2022

Food delivery is gaining popularity due to changes in lifestyle and dietary patterns. However, packages used to delivery food may contain contaminants including heavy metals, or additives added during manufacturing process which may migrate into food during processing and transportation. In this study, a total of 58 food packages for delivery were collected and tested for migration of heavy metals (lead, cadmium and arsenic), bisphenol A and phenol into food simulants. The method was validated by evaluating linearity of calibration curve, limit of detection, limit of quantification, recovery and precision. Result of heavy metal migration showed that lead was the most frequently migrated metal and the highest concentration was detected in a polypropylene sample. Although there are no specific migration limits for bisphenol A and phenol in packaging materials tested in this study, migrations of bisphenol A and phenol were detected in some packages. This may due to contamination or additives added during manufacture of packages. Risk (%) was calculated to analyze the risk associated with the migration of heavy metals, bisphenol A and phenol, and was always below 1 %. These results showed that food packages for delivery are safe in terms of heavy metals, bisphenol A and phenol migration.

• 보건교육건강증진학회지
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• 제30권4호
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• pp.87-97
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• 2013

Objectives: Recent movements in urban planning propose a promotion of health condition as one of its emerging topics as growing body of evidence suggests that individual health is correlated with the built environment. The concept of healthy city was introduced in Korea and many local governments were tried to implement relevant policies. However, empirical studies were insufficient for understanding the relationship between health and the built environment. Most studies and policies were viewed and implemented from public health perspective. The purpose of this study is to estimate a value of healthy city as an activity-friendly environment. Methods: The 195-respondent survey data in Seoul Metropolitan Area was used for estimating the perception of healthy cities. Results: Survey results reported that more than 90% of respondents did walking and/or biking regularly. Moreover, they were willing to pay won3,695 per month for creating healthy cities. Conclusions: This study confirmed that the consideration of built environmental factor was necessary in policies of healthy city. This can offer insights into how to manage and develop the policies of healthy city to help promote individual health conditions.

• 한국재난정보학회 논문집
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• 제4권1호
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• pp.54-67
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• 2008

U-city is one of the most competitive field in Korea in the future and it has many subdivision applying field. U-health and u-disaster are important fields of u-city and many projects are being done about those fields. Because each filed is being developed independently, the better efficiency cannot be expected in case of disaster. The most important focus in disaster is the maintenance of human life and dignity, so u-health and u-disaster should be developed together and organized as the same filed for the practical assistance in case of disaster.

• 한국동물위생학회지
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• 제31권1호
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• pp.31-35
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• 2008

In order to investigate the seroprevalence of Salmonella Pullorum in boilers reared in Daejeon area, 509 samples were collected from 10 boiler farms randomly selected from 38. The survey was carried out during 6 months from April to October in 2007. Out of 509 chickens, 35 (6.9%) were seropositive and average titer was $2^{4.8}$. The seroprevalence by district was 5.5% (5/90) in Dong-gu, 4.1 % (4/96) in Seo-gu, 7.9% (24/303) in Yuseong-gu, 10.0% (2/20) in Daedeok-gu.

• Radiation Oncology Journal
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• 제36권1호
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• pp.79-84
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• 2018

Deep inspiration breathing hold (DIBH) compared to free-breathing (FB) during radiotherapy (RT) has significantly decreased radiation dose to heart and has been one of the techniques adopted for patients with breast cancer. However, patients who are unable to make suitable deep inspiration breath may not be eligible for DIBH, yet still need to spare the heart and lung during breast cancer RT (left-sided RT in particular). Continuous positive airway pressure (CPAP) is a positive airway pressure ventilator, which keeps the airways continuously open and subsequently inflates the thorax resembling thoracic changes from DIBH. In this report, authors applied CPAP instead of FB during left-sided breast cancer RT including internal mammary node in a patient who was unable to tolerate DIBH, and substantially decreased radiation dose the heart and lung with CPAP compared to FB.

• 한국동물위생학회지
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• 제32권4호
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• pp.385-389
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• 2009

This study was attempted to survey on the prevalence of canine heartworm infection (Dirofilaria immitis) in the Incheon area in 2006. This study showed comparative infection rates of canine heartworm in conjunction with different geographic locations and rearing environments (i.e., indoor, outdoor or free roaming). In total, 24 dogs (6.0%) were D. immitis positive among a total of 400 tested dogs. The geographic distribution of detection rates was Nam-gu (2 dogs, 6.7%), Yeonsu-gu (1 dog, 3.0%), Namdonggu (5 dogs, 8.0%), Pupyoung-gu (4 dogs, 6.7%), Kanghwa-gun (8 dogs, 13.0%), and Onjin-gun (4 dogs, 11.1%). In addition, 4 dogs (2.0%) or 20 dogs (10.0%) were positive for D. immitis among 202 indoor dogs or 198 outdoor dogs including free roaming dogs, respectively, while 13 dogs (11.7%) were positive for D. immitis among 111 outdoor dogs excluding free roaming dogs. In the case of 87 free roaming dogs, 7 dogs (8.1%) among them were positive for D. immitis.

• 환경위생공학
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• 제23권3호
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• pp.31-38
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• 2008

This study was conducted to investigate the effects of environmental factor such as temperature, salinity, turbidity, pH and dissolved oxygen on the growth of Vibrio spp.. In this survey, total 56 seawater samples were obtained from 8 different sites of the Incheon coastal area during the periods from april 2008 to october 2008. Enumeration of Vibrio spp. was determined by using the most probable number(MPN) procedure. Isolation rates of V. parahaemolyticus, V. vulnificus, V. cholerae in all samples tested were 44.0%, 21.4% and 13.1%, respectively. The enumeration of Vibrio spp. was very low correlated with water temperature and pH and negatively correlated with salinity, dissolved oxygen and turbidity. We found salinity to be the parameter most highly correlated with the enumeration of Vibrio spp. The highest rate of antibiotic resistance of V.vulnificus and V.parahaemolyticus was Cefazolin(11.5%), Ampicillin(70.8%), respectively.

• 한국동물위생학회지
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• 제21권4호
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• pp.379-383
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• 1998

This survey was carried out to determine 5 residual sulfonamides(sulfamerazine : SMR, sulfamethazine : SMT, sulfamonomethoxine : SMM:, sulfadimethoxine : SDM, sulfaquinoxaline : SQX) in muscle of mouse. For this investigation, pertaining detection wavelength, residual levels and residual times in muscle of mouse were summarized as follows ; 1. Pertaining detection wavelength of 5 residual sulfonamides(SMR, SMT, SMM, SDM, SQX) was 270nm by HPLC/UV detection. 2. After 1 day put a stop to sulfonamides administration, residual levels was 1∼l.5ppm, but were not detected at day 7 3. Withdrawal time of 5 sulfonamides were about 7 days suspectly.

• 한국동물위생학회지
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• 제31권1호
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• pp.129-135
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• 2008

A total of 3,943 samples (beef 698, pork 2,178 and chicken 1,067)were collected from slaughter houses in Daegu from January to December 2006 for analysis of antimicrobial residues. The results were also comparatively analyzed with those carried out from 16 veterinary service laboratories nationwide as a part of national residue program in 2006. The samples from 11 farms (cattle 2, pig 9) were found to exceed the legal limit. Among them 5 were classified as tetracyclines, 3 as $\beta$-lactams, 2 as sulfonamides and 1 as quinolone. Nationally a total of 222 farms (241 cases) were found to violate the residual limits, of which 47.3% were detected by screening test, followed by surveillance (38.3%). Failure to observe withholding periods of antimicrobial drugs after treatment was the most significant cause of the non-compliance.

• Fisheries and Aquatic Sciences
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• 제24권8호
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• pp.277-283
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• 2021

Kudoa septempunctata has been reported as a new parasite in aquacultured olive flounder Paralichthys olivaceus, and also as a causative agent of food poisoning in humans. This paper investigated the infection of K. septempunctata in 216 sashimi and 20 sushi made of olive flounders in Busan, Korea. Among 236 samples, K. septempunctata was detected in eleven sashimi with 6-7 polar capsules by the microscopy. Among eleven sashimi, five sashimi were positive in Polymerase Chain Reaction (PCR) assay with the targets of 18S rDNA and 28S rDNA. The genotype of all the five PCR results is identified as the genotype ST3 which is common in Korea. K. septempunctata was found in olive flounders sashimi from Samcheonpo and Wando outside of Jeju Island. These findings would contribute to establish the standard of K. septempunctata for preventing food-borne outbreaks in advance and providing further preventive management for the seafood safety.