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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Environmental Health Sciences
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Journal DOI :
Korean Society of Environmental Health
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Volume & Issues
Volume 31, Issue 6 - Dec 2005
Volume 31, Issue 5 - Oct 2005
Volume 31, Issue 4 - Aug 2005
Volume 31, Issue 3 - Jun 2005
Volume 31, Issue 2 - Apr 2005
Volume 31, Issue 1 - Mar 2005
Selecting the target year
Runoff Characteristics of Non-point Source According to Rainfall in Nam Watershed
Jang, Seong-Ho ; Park, Jin-Sick ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 1~6
This study was conducted to identify the runoff characteristics of non-point source according to rainfall in Nam watershed. Land-uses of the Nam watershed were surveyed paddy field 4.5%, crop field 6.8%, mountainous 78.7%, urban 2.4%, and etc. 7.7%. Mean runoff coefficients in each area were observed Ⅰ area 0.08, Ⅱ area 0.08, and Ⅲ area 0.05. In the relationship between the rainfall and peak-flow, correlation coefficients(r) were investigated Ⅰ area -0.8609, Ⅱ area 0.6035, and Ⅲ area -0.4913. In the relationship between the antecedent dry period and first flow runoff, correlation coefficients(r) were investigated Ⅰ area -0.9093, Ⅱ area -0.1039, and Ⅲ area -0.7317. The discharge of pollutant concentrations relates to the flow rate of storm-water. In the relationship between the rainfall and watershed loading, exponent values of BOD, COD, SS, and T-N were estimated to 1.2751, 1.2003, 1.3744, and 1.1262, respectively.
Prevention of Ultraviolet B Radiation (280-320 nm) Induced Contact Hypersensitivity by EGb 761
Choi, Wook-Hee ; Ann, Hyoung-Soo ; Ahn, Ryoung-Me ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 7~14
Exposure of skin to UVB radiation can cause the induction of inflammation and impairment of contact hypersensitivity(CHS) response. Several studies have shown that polyphenolic compounds isolated from EGb 761 afford protection against UVB. In this study, we demonstrated that topical application of EGb 761, before 1MED(1.4 KJ/
), 1.5MED (2.1 KJ/
), 2MED (2.8 KJ/
) of UVB exposure to ICR mice prevented UVB-induced inflammation and inhibition of the contact hypersensitivity response. The skin-fold swelling from 1MED, 1.5MED, 2MED of UVB exposure highly significantly increased after twice irradiation. Topical application of EGb 761(0.1%, 1%, 4%), 5 days prior to UVB exposure reduced skin thickness compared to non-treated mice. Exposure of shaved abdominal skin of mice to 1MED, 1.5MED and 2MED of UVB radiation resulted in suppression of contact sensitization through the skin to 56.23%, 65.12%, 74.02%, compared to normal unirradiated skin. Topical application of EGb 761(0.1%, 1%, 4%), 5 days prior to or 5 days after exposure to 1MED and 2MED of UVB resulted in protection against suppression of contact hypersensitivity in mouse dorsal skin. These protective effects were dependent on the dose of EGb 761 employed. The present study show that EGb 761 protect UVB-induced inflammation and immune suppression. Also, we suggest that EGb 761 can provide protection from photoimmunosuppression.
Stabilization of Solid Waste in Lysimeter by Air Injection Mode
Kim, Kyung ; Park, Joon-Seok ; Lee, Hwan ; Lee, Cheol-Hyo ; Kim, Joung-Dae ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 15~22
This study was conducted to evaluate air injection mode on stabilization of solid waste in lysimeter. For three lysimeters, one was maintained under anaerobic condition as control, and air was injected into two lysimeters in continuous mode (atmospheric pressure) and intermittent mode (high pressure of 2 bar). Distilled water was sprayed over solid waste in 1.4 l/
(solid waste)/day, supposing rainfall intensity of 1,200 mm/yr and 30% infiltration. Oxygen in landfill gas was not detected in control lysimeter during operational days. After 30 day-aeration, oxygen concentrations of continuous and intermittent modes were maintained in 14% and 6%, respectively.
removal efficiencies of continuous and intermittent modes were about 70% and 50%, and BOD5 removal efficiencies were about 80% and 20%, respectively. In view of oxygen supply, and
removal, continuous air injection mode of atmospheric pressure was more effective than intermittent mode of 2 bar. Settling degree of solid waste in case of two air injection modes was 3 times higher than that of anaerobic condition as control. Considering the above results, it was thought that air injection (especially continuous atmospheric pressure) could improve degradation of solid waste and induce preliminary stabilization in landfill site.
Detection of Staphylococcus aureus and Screening Staphylococcal Enterotoxin a, b, c genes in Strains Isolated from Strawberry Juice Shops in Jinju
Kim, Se-Ri ; Park, Seon-Ja ; Shim, Won-Bo ; Kim, Hyoung-Kab ; Chung, Duck-Hwa ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 23~30
Staphylococcus aureus is one of the important pathogenic agents, which are related to the hygienic condition. This study performed for the detection of Staphylococcus aureus and screening staphylococcal enterotoxin a, b, c genes in strains isolated from the environment for production of non-pasteurized strawberry juice. A total of 44 samples were collected from utensils, machinery, employees, raw materials, and strawberry juices in 3 strawberry juice shops in Jinju, western Gyeongnam. The isolation rate of Staphylococcus aureus was 26%. Specially Staphylococcus aureus was frequently isolated from employee's hands, strawberry and strawberry juices. The sea, seb, and sec genes were also investigated by polymerase chain reaction (PCR). One hundred and 55% of each isolate had found sea gene and seb gene, respectively. However, sec gene was not detected anywhere. To prevent food-borne disease associated with juice, the accomplishment of HACCP to be more efficient and systematic is necessary.
Isolation and Identification of Activated Microorganisms for Biocide Development
Lee, Jang-Hoon ; Kang, Byeong-Kon ; Kwon, Hyuk-Ku ; Jung, Joon-Oh ; Nam, Youn-Ku ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 31~38
An anti-fungal material produced by actinomycetes was isolated from domestic soil. This actinomycetes was identified as Streptomyces albogriseus by 16S rDNA sequence. YEME (yeast extract 4 g, malt extract 10 g, glucose 4 g, D.W 1l, pH 7.00.2) medium was used for production of anti-fungal materials. S. albogriseus was cultured in a shaking incubator for 2 weeks at 150 rpm and
. An anti-fungal material produced by S. albogriseus was identified at 340 nm by uv/vis- spectrometer and it showed powerful anti-fungal activity. This is the first report that secondary metabolite produced by S. albogriseus showed an activity against phytopathogenic fungi such as Collectrichum coccodes, Botrytis cinerea, Cladosporium cucumerinum, Didymella bryoniae.
Levels inside Train and in Platform of Subway
Park, Dong-Uk ; Yun, Kyung-Sup ; Park, Soo-Taek ; Ha, Kwon-Chul ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 39~46
This study was performed to investigate the concentration of
in inside train and platform of subway 1, 2, 4 and 5 in Seoul, KOREA.
, temperature, humidity and carbon dioxide were monitored using Portable Aerosol Spectrometer at afternoon (between 13:00 and 16:00). The concentrations of
in inside train were monitored to be higher than those measured in platform. In addition,
concentration in both platform and inside train were found to be greatly higher than range of from 35
in ambient air reported by Ministry of Environment. This study found that there were many inside train in subway 1, 2, 4 line where exceeded 150
of Korean PM10 standard. The average percentage that exceeded PM10 standard was 83.3% in line 1, 37.9% in line 2 and 63.1% in line 4, respectively. In particular, most of inside train in subway line 1 were over PM10 limit. PM2.5 concentration ranged from 77.7
, which were found to be greatly higher than ambient air PM2.5 standard promulgated by United States Environmental Protection Agency (US-EPA) (24 hours arithmatic mean : 65
, year average : 15
). The percentage of
was 86.2% in platform, 81.7% in inside train, 80.2% in underground and 90.2% in ground. These results indicated that fine particles (
) accounted for most of
Hypoglycemic Effects of Propolis to the Streptozotocin Induced Diabetic Rats
Chung, Nyun-Ki ; Lee, Dong-Bae ; Cho, Young-Chae ; Ha, Chang-Su ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 47~54
To evaluate the hypoglycemic effect of propolis, streptozotocin (STZ) induced diabetic rats were divided into 4 groups such as, diabetic control group, low dose of propolis (0.1 ml) group, medium dose of propolis (0.3 ml) group and high dose of propolis (0.9 ml) group and feeded with propolis extracts for 30 days. After experiment, oral glucose tolerance test (Oral GTT) was carried, and 16 hours fasting blood sugar levels, body weights, blood lipid levels were measured. Finally, pancreatic histopathological study was performed. In conclusion, the propolis is effective to the treatment diabetes due to the reduction of the blood sugar level and the regeneration of the damaged
-cells shown in streptozotocininduced diabetic rats.
Wastewater Treatment Plant
Lee, Chan-Hyung ; Moon, Kyung-Sook ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 55~60
The occurrence and abundance of protozoa at advanced wastewater treatment plant were compared with operating parameters and effluent quality using statistical procedures. In correlation analysis between the distribution of protozoa and operating parameters, the distribution of protozoa was showed the operating condition of plant. Regression analysis between the distribution of protozoa and effluent quality up to 7 days, showed the R-square values of most regression equation were more than 0.6 and constant was higher than slope and could indicate effluent quality from sampling day to 7 days. Once enough data concerning protozoa, operating parameters and effluent has been gathered, the operator has a valuable tool for predicting plant performance and near-future effluent quality based on microscopic examination. Plant operator manipulates operating conditions if he knows near-future data of effluent is deteriorating. Perhaps more importantly it can be used to actually control the plant to adjust the operating conditions to obtain the protozoal populations that have been shown to provide the best effluent quality.
Oxidative Transformation of Triclosan by Laccase
Kim, Young-Jin ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 61~65
The oxidative transformation of triclosan with laccase from Trametes versicolor was conducted in a closed, temperature controlled system containing phosphate buffer for pH control. The optimum pH for triclosan transformation showed about 5. Despite the observation that elevated temperatures tended to inactivate the enzyme, increased transformation of triclosan was observed up to
. Of the mediators studied, ABTS was most successful at enhancing triclosan transformation. About 80% of the toxicity of the initial mixture was reduced after the enzymatic treatment. In the presence of 1.0 mM of anions such as sulfite, sulfide, and cyanide, triclosan transformation was greatly inhibited. Chloride and fluoride ions exhibited inhibition of triclosan transformation at 25 mM. Ferric ion substantially inhibited triclosan transformation at 1.0 mM.
The Effects of Chelidonii Herba Extract on the Cell Mediate and Humoral Immune Responses in Mice
Park, Ji-Young ; Kim, Nam-Joong ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 66~72
The effects of Chelidonii Herba on the cell mediate and humoral immune responses were investigated in ICR mice. ICR mice received intraperitoneal injection of methanol extracts (ether fraction, buthanol fraction, water fraction) for 5 days before sensitization. The change of body weight (%), the organ weight ratio (%), the numbers of RBC and WBC, the ear swelling by dinitrofluorobenzene, the titers of hemagglutination (HA) and hemolysin (HY) to SRBC were determined. The results were as follows; 1. The change of body weight (%) showed a tendency of increasing generally. 2. The weight of spleen (%) revealed decreasing but that of thymus revealed increasing. 3. Ear swelling was maxium at 48 hours after challenge and was significantly decreased in the groups treated with Ether, Buthanol and Water. 4. The numbers of RBC and WBC were decreased generally. 5. HA and HY titers were decreased significantly.
Adsorptive Preconcentration and ICP-AES Determination for Trace Amount of Ni(II) and Zn(II) in Aqueous Solution
Choi, Jong-Moon ; Choi, Sun-Do ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 73~78
A determination method of trace Ni(II) and Zn(II) in aqueous solution was studied and developed by adsorbing on titanium dioxide. For this purpose, several conditions were optimized such as the pH of sample solution, adsorption time, the types and concentration acid, and desorption time. The titanium dioxide was added in sample solution which was pH adjusted. Then, the sample solution was stirred for 5 minutes. This mixture was stored in room temperature for 30 minutes to allow adsorption. After filtering and washing the titanium dioxide, the analytes were dissolved from the titanium dioxide on membrane filter by an ultrasonic vibration for 10 minutes in 1.0 M
solution. Then, this sample solution was analysed using ICP-AES. The adsorption equilibrium was achieved in 30 minutes. The desorption was the most of effective with 1.0 M(mol/l) nitric acid solution, and desorption time was 10 minutes. This procedure was applied for the analysis of two real samples, i.e., brown seaweed and tangle. The recoveries of Ni(II) and Zn(II) in spiked samples were 89.4
98.9% for analytes.
Changes of Index Microorganisms and Lactic Acid Bacteria of Korean Fermented Vegetables (Kimchi) during the Ripening and Fermentation-Part 1
Kim, Jong-Gyu ; Yoon, Joon-Sik ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 79~85
This study was undertaken to investigate the changes of index microorganisms and lactic acid bacteria of traditional Korean fermented vegetables (kimchi) during the ripening and fermentation period. A type of kimchi, baechoo-kimchi, was prepared and stored at
for 8 days. The numbers of the total aerobic bacteria, psychrotrophilic bacteria, coliform bacteria, and Escherichia coli in the kimchi and also in raw materials of the kimchi (Chinese cabbage, green onion, ginger, garlic, and red pepper) were counted using appropriate media. The highest number of aerobic bacteria was detected from ginger, then red pepper, then garlic, then Chinese cabbage, and lowest number from green onion. The highest number of psychrotrophilic bacteria was detected from red pepper, then Chinese cabbage, then garlic, then ginger, and the lowest number from green onion. Coliforms and E. coli were not detected from all of the raw materials of kimchi. Total aerobic bacteria and lactic acid bacteria of the kimchi showed gradually increasing during ripening and fermentation. The number of psychrotrophilic bacteria showed a similar level in the kimchi. Coliform bacteria were detected at the 3rd, 4th, and 5th day of the kimchi fermentation period, although they were not detected from the raw materials of the kimchi. However, the bacteria were not detected in the kimchi after 6 days. E. coli was not detected in all kimchi samples. The pH value of the kimchi gradually decreased, and acidity increased over fermentation period. This study indicates that there was contamination of coliform bacteria during the process of kimchi preparation, and lactic acid bacteria proliferated in the kimchi during fermentation inhibited the growth of coliforms. More research is needed to evaluate the inhibitory effects of each raw materials of kimchi.
A Study on the Characteristic Evaluation of Sewage and Industrial Wastewater Treatment Sludges by Physico-chemical Analysis
Kwon, Gi-Hong ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 86~93
Because generally large amount of sludges are generated from the process of sewage and wastewater treatment, the management and controlment of those sludge has become a important issue in many researches. In this dissertation, we conducted the research to see the physico-chemical characteristics of sludges generated from various sources. Moisture of sludges were 81.5% in textile industries, 81.4% in frame metal industries, 80.7% in 1st metal industries. Volatile solid were 22.1% in hide · rubber industries, 21.9% in coke · petroleum industries. Fixed solid were 18.5% and 17.7% in the 1st metal industries and frame metal industries. High heating value by wet base were 1,850 kcal/kg in coke · petroleum industries, 1,220 kcal/kg in hide · rubber industries, but sludges from the 1st metal industries and frame metal industries were impossible to incinerate because most of those sludges were inorganic. The leaching test showed that hazardous materials was detected in nearly every kinds of sludges. Some of sludges from hide · rubber industries and frame metal industries exceeded the leaching criteria and so they were classified as specific wastes. And other sludges generated in sewage treatment plants or other industries was below the leaching criteria.
The Study of Radon Concentration According to Building of Stars
Kim, Young-Sik ;
Korean Journal of Environmental Health Sciences, volume 31, issue 1, 2005, Pages 94~98
This study was carried out to provide radon concentration and exposure in building. The average radon concentrations of building was measured 1.37 pCi/L in basement, 0.95 pCi/L in 1st layer, 0.74 pCi/L in 2nd layer, 0.56 pCi/L in 3rd layer, and 0.4 pCi/L in 4th layer, respectively. The average radon concentration of basement was measured the higher than any other stairs. Daily average distribution of radon concentrations in building shown that radon concentrations measured in morning at 8hr was the highest value. Monthly average distribution of radon concentrations shown 0.28
0.17 pCi/L in April and 0.82 pCi/L in December that was the highest value. The average concentrations of radon was measured 0.38pCi/L in spring. 0.44 pCi/L in summer, 0.53 pCi/L in autumn, and 0.67 pCi/L in winter, respectively. This result shown that the average concentrations of radon in winter was the higher than any other seasons. That reasons was supposed that effect of number of exchanges and using air conditions was the higher in summer than winter.