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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Environmental Health Sciences
Journal Basic Information
Journal DOI :
Korean Society of Environmental Health
Editor in Chief :
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
The Present State of an Air Pollutants Inflow into Gyeongju and Effects on Stone Cultural Properties
Jung, Jong-Hyeon ; Shon, Byung-Hyun ; Kim, Hyun-Gyu ; Choi, Won-Joon ; Nam, Chul-Hyun ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 349~359
In this study, we focused on the geographical and the meterological conditions, the atmospheric examination, the soil contents and compositions in order to establish cultural properties conservation plan in Gyeongju and its surroundings. Also, the transport route with environmental contaminants in Ulsan and Pohang was examined. The results could be summarized as follows ; Air pollutant and environmental contaminant was transported by two types of winds. One is induced by local winds, the other is induced by synoptic winds. Air contaminant transported from coastal regions to inland regions were associated with wind velocity. Gyeongju had good atmospheric conditions, i.e.
, which was below environmental air qualify standards and was little lower than those of Pohang and Ulsan. However, Ulsan and Pohang city are located on south-east coast and have many industrial facilities. Hence, air pollution problems become serious issues in Ulsan, Pohang, Busan, Daegu and other cities due to the emission of air pollutants from the various industrial facilities, incinerator and power plants, etc. The soil of Gyeongju had heavy metals conditions, i.e.
. However, pH value of soil had range of
. The results showed that high pH concentration of soil could occur due to air pollution diffusion and environmental contaminant transport at Ulsan and Pohang city.
Tylosin Production by Mutant Resistant to Oleic Acid
Choi, Du-Bok ; Choi, On-You ; Moon, Ok-Ran ; Yoon, Mi-Ran ; Ji, Sung-Nam ; Shin, Dae-Yewn ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 360~364
When rapeseed oil as the carbon source was used for tylosin production from Streptomyces fradiae TP-1239 was very sensitive to oleic acid. Cell growth was restrained by adding 0.8 g/l of oleic acid to the culture broth. Mutant strain TM-224-1 resistant to 1.2 g/l of oleic acid was obtained by screening in solid and liquid media containing oleic acid. The uptake rate of oleic acid by TM-224-1 was approximately 3.8 fold higher than the parent strain. For comparing the TM-224-1 and the parent strain, batch cultures were carried out in a jar fermentor. Cell growth of TM-224-1 strain was higher than the parent strain after two days of culturing. However, after four days of culturing, it was similar to that of the parent strain. The amount of rapeseed oil consumed by TM-224-1 and the parent strain were 60.5 and 78.2 g/l, respectively. The production and yield of tylosin was aproximately 2.0 and 3.2 fold higher than the parent strain, respectively. From these results, it was concluded that this mutant, which was resistant to oleic acid, has improved tylosin production.
Laboratory Safety Management System and Its Role on the Performance of Safety-Related Activities in Korean Academia
Yoo, Kyong-Nam ; Park, Jeong-Im ; Park, Tae-Joo ; Choi, Min-Kju ; Lee, Chung-Hak ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 365~371
This study was peformed to explore the current situation of university environmental health and safety (EHS) system and evaluate the effects of such system on university EHS practices. Essential elements for the university EHS system were identified based on the representative examples of foreign universities, and Hey were incorporated into a questionnaire, which was used in this study. Among the academic institutions we surveyed in this study, 89% of the universities employed health and safety manager, and 65% kept departments. However, less than 50% of universities maintained EHS policies, maintained health and established safety committees within the university headquarters, and held health and safety meetings on regular basis. Several basic requirements such as chemical hygiene program and laboratory safety training program lacked in many universities. Some basic surveillance was performed in many universities, however, only few universities carried out surveillance on biological safety, medical examination, and chemical exposure monitoring. EHS system had significant influence on university EHS program (p<0.05). Performances of EHS activities were influenced by presence of EHS policies, and university health and safety committees.
Development of Basic Local Exhaust Ventilation System for Experimental Education
Han, Don-Hee ; Park, Min-Kyu ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 372~378
To enhance educational effect for exhaust ventilation system, more instructive educational engineering such as experimental system should be needed. This study was performed to 1) manufacture the basic experimental system for local exhaust ventilation, 2) experiment with this system and 3) develop methodology of exhaust ventilation education. With this system, three pressures (static pressure(SP), velocity pressure(VP) and total pressure(TP)) were measured and illustrated and the graphic shapes agreed to theoretical ones relatively. Entry loss factor (
) of each hood was found to be different with hood shape, duct velocity and flow rate. This result implies that precise
should be determined case by case and a industrial hygienist should not be dependent on the existing values. Pressure loss using velocity pressure method and characteristics of air movement near hoods using fume were grasped with this system. But larger system should be recommended to produce more precise experimental results.
Evaluation on Air Quality inside Subway Driver Cabin by Monitoring PM,
, and CO Levels
Kwag, Hyun-Suk ; Jin, Ku-Won ; Kim, Won ; Yang, Won-Su ; Choi, Sang-Jun ; Park, Dong-Uk ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 379~386
] in driver cabins of subway line from 5 to 8 were monitored from 07:00 through 21:00 (or 19:30 or 20:00) on May. Driver cabin of subway line 7 showed the highest
concentrations. General Linear Model indicated that subway line, subway location (ground and underground track) and running time (morning and afternoon) significantly influenced the concentrations of
(p=0.000). Daily profile of
, expressed as an 30 minutes average, showed similar variation pattern over day period. These concentrations showed the highest concentrations between 07:00 and 09:00 of rush hour, slightly dropped and again rose slightly after 18:00. In correlation analysis, significant relations among
were detected (p<0.01). In particular, correlation coefficient between
was highly significant (r=0.884). Regression analysis also concluded that
concentration significantly explained 71.4% of variation of
). Correlations by CO with
were 0.451 and 0.520, which were higher than those by
. Further study is needed to examine the sources of
and CO in subway and to compare pollutants concentration among subway lines.
Daily Concentration Measurements of Water-soluble Inorganic Ions in the Atmospheric Fine Particulate for Respiratory Deposition Region
Kang, Gong-Unn ; Lee, Sang-Bok ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 387~397
In oder to understand the deposition possibility of water-soluble inorganic ions in the atmospheric fine particulates for the human respiratory tract, the mass size distribution of ion species was measured using an Anderson sampler in the Iksan during fall, 2004. Samples were analyzed for major water-soluble ions using Dionex DX-100 ion chromatograph. The size distribution of water-soluble inorganic ions in the atmospheric particulates appeared bimodal distribution, which were divided around
into two groups. Mass site distribution of total ion in the coarse mode was found to be almost similar level during the sampling period, but fluctuations of mass size distribution in the fine mode were observed. Considering the mass size distribution of total ion concentrations for the respiratory deposition region, it was found that about 77.1% of total tons could be deposited in the alveolar region, and which dominated the daily variation of total ion concentrations. The concentration of total ions, which could be deposited in both the head region and the tracheobronchial region, was
, whereas that in the alveolar rerion was
. Dominant ions which could be deposited in the alveolar region were
, accounting for about 40%, 27% and 22% of the total ions, respectively. Although
was approximately 3% of total ions, it was shown that most of this could be deposited in the alveolar region due to its high fraction of small size distribution originated from anthropogenic source of biomass burning. The presence of these ions in the fine mode may be of public health significance as they are very biologically harmful to health and have a high probability of being deposited in human lung tissue.
A Comparison Study on the Method of Pollution Evaluation of Water Quality in the Stream
Lee, Ho-Beom ; Lee, Jung-Ki ; Shin, Dae-Yewn ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 398~403
This study is undertaken to find the optimal method to make the decision on the degree of water pollution by comparison of K-WQI, KOE-WQI that is made for index with the water quality index and water quality environment standard of the Frame Act on Environment Policy as the result of survey for water quality reality on the major point of the Yeongsan river from 2002 to 2004. The water quality of major rivers has some differences depending on seasons. however, under the water quality standard by the
density, most of rivers displayed the water quality level of
grading, and on K-WQI that is classified by indexing for 10 categories of pH, DO,
N, T-P, and E-Coli and classified into 5 groups from 100 points to 40 points, they displayed the score distribution of the first grade in water quality for
points to the second grade in water quality for
points. On KOE-WQI that is classified by indexing for 5 categories of pH, DO,
, COD and T-coli and classified into 5 groups from 90 points or above for outstanding and 29 points or below for very bad, and the water quality distribution is made ranged from the first grade in water quality for 90 points or more to the third grade in water quality for
points. In addition, for the contribution of the water quality decline, the Environmental standard has significant dependency on the
density, with K-WQI contributing in various water quality decline depending on the environment around the river area of
, and E-Coli, and KOE-WQI acting os the factor contributing to lower the water quality decline by
, COD, and T-coli. As such, the current water quality environment standard has high dependency on
and KOE-WQI excludes some nitrogen and phosphorus that considers the river environment that the grade in water quality is set by some category, and K-WQI reflected well of the ecology environment of rivers with the diversity of the assessment factor as well as to have the low dependency of specific factor to be objective.
A Study on the Degradation Characteristics of 1,4-dioxane at Different Initial pHs with Advanced Oxidation Process Using
Park, Jin-Do ; Suh, Jung-Ho ; Lee, Hak-Sung ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 404~410
The pH efforts on the removal of 1,4-dioxane and the biodegradobility enhancement of dioxane contaminated water were investigated using
baled advanced oxidation process. Experiments were conducted using a bubble column reactor under different initial pH. The
process effectively converted 1,4-dioxane to more biodegradable intermediates which had a maximum
enhancement at pH 11 within the experimental range, precisely, when the initial pH increased,
enhanced. However, in case of removal efficiencies of 1,4-dioxane during
oxidation the optimum condition was shown at pH 9 compared with pH 6 and 11. TOC and COD values were not largely changed for all reaction time. From the results of 1,4-dioxane removal efficiency, TOC, COD, and
enhancement with reaction time, it was surely observed that 1,4-dioxane was just converted to biodegradable materials, not completely oxidized to carbon dioxide.
The Micronucleus Test of Clean Natural with Mice
Cho, Yoon-Hee ; Kim, Eui-Gyung ; Lim, Yeong-Yun ; Kim, Gon-Sup ; Lee, Hu-Jang ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 411~414
Clean Natural is a new disinfectant of which main components are propolis and wood vinegar from Quercus mongolica. The mutagenicity of Clean Natural was studied by a micronucleus test in male ICR mice. The maximally tolerated dose (MTI) of Clean Natural was determined to >2.0 g/kg body weight. Therefore, the doses adopted for the micronucleus test was 2.0 g/kg as a high dose, 1.0 g/kg as a medium and 0.5 g/kg as a low of dose, respectively. Each of group was consisted of three doses of Clean Natural, positive control 2 mg/kg of mitomycin C and negative control 20 ml/kg of saline. A slide preparation was made at 24 hours following administration. No significant induction of micronuclei was observed in any of the three doses of Clean Natural orally administered. No cytotoxicity such as inhibition of hemopoiesis was observed in any group of test agent as the rate of polychromatic erythrocytes to total erythrocytes was over 40%. These results indicate that Clean Natural is not capable of inducing micronuclei in vivo mouse cells and thus has no genotoxicity in micronucleus test.
Decolorization of Dye Using Immobilized Photocatalyst onto Sponge
Kim, Dong-Seog ; Park, Young-Seek ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 415~422
The photocatalytic decolorization of Reactive Red 2B(RR2B) was studied using immobilized photocatalyst/UV System. Two pairs of 20 W UV-B and UV-C lamps were employed as the light source. Immobilization of
was carried out using sponge (as the photocatalyst body) and silicone sealant(as the binder). The effects of parameters such as the thickness, pore size of sponge photocatalyst and attached material on the reactor bottom were investigated. The results showed that the optimum thickness of sponge photocatalyst was 1 cm. Decolorization of reactor which had the bottom coated
was higher than that of reactor attached aluminum plate. Decolorization of photocatalyst with large pore size(mean pore size, 3.8 mm) was higher than that of the small(mean pore size, 1.75 mm). Initial decolorization of RR2B could be descrived using the Langmuir-Hinshelwood(L-H) model and gave constant values of
Effectiveness of One- and Dual-Stage Recycled-Water Systems in Slurry Bioreactor Treatment for Coal Tar-Contaminated Soil
NamKoong, Wan ; Park, Jin-Hong ; Lee, Noh-Sup ; Kim, Joung-Dae ; Park, Joon-Seok ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 423~430
This research was performed to evaluate the effectiveness of one- and dual-stage recycled-water systems in slurry bioreactor treatment for coal tar-contaminated soil. Silty loam soil was used for this research. Coal tar and 14 target PAHs (Polycyclic Aromatic Hydrocarbons) concentration in the soil were determined with gas chromatography. There was no significant difference between removal efficiencies of one- and dual-stage recycled water systems in case of about 4,000 mg coar tar/kg. However, the dual-stage system increased significantly the removal efficiency in case of about 20,000 mg coar tar/kg and the first-order kinetic constant of the system was over 1.5 times higher than that of one-stage recycled water system. 3-Ring compounds in PAHs was removed completely within 30 days of operation. Coar tar was removed in over 96% through biodegradation and removed in about 4% by evaporation. High correlation coefficient(
) was found between water solubility and removal efficiency of the cyclic compounds.
Perceptions of Opinion Leaders on Environmental Health Hazards and their Management Policies in Korea -Focusing on the Genetically Modified Organisms and Endocrine Disruptors
Ahn, Jong-Ju ; Paik, Nam-Won ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 431~443
This study was performed to investigate the perceptions of the opinion leaders, such as government officials, researchers, NGO workers, and journalists on the risks of endocrine disrupters (EDs) and genetically modified organisms (GMOs) as well as the related policies on these two hazards or potential hazards. The opinion leaders generally considered the EDs as the most serious hazard among twenty-one environmental health hazards in Korea, and agreed that the EDs would continuously be the most serious hazard. On overall average, the GMOs were ranked the 11th among the twenty-one health hazards. Further investigation indicated that the GMOs were variously ranked by the group of respondents: they were ranked the 2nd by the NGO workers, the 7th by the journalists, the 9th by the researchers and the 11th by the government officials. In general, the respondents considered the dioxin as a hazard with the highest risk while the GMOs were considered less hazardous. The opinion leaders considered that although the risks of the GMOs and EDs were not fully verified, the risks should be controlled through the legislation. The EDs and GMOs should be separately regulated for the time being, while the EDs should put under more strengthened regulation. It is recommended that a web-site containing the information on the EDs and the GMOs be prepared for the journalists. In addition, a training program in relation to the EDs and the GMOs needs to be organized by the Korean Press Foundation and the Korea Food and Drug Administration to educate the journalists. A committee consisting of government officials, scientists, and NGO workers needs to be established, and it should provide framework of future policies and public relations programs.
Inhibitory Effects of Doen-jang(Korean Fermented Soybean Paste) and Soybean Extracts on the Growth of KB Cells
Lee, Sung-Lim ; Kim, Jong-Gyu ;
Korean Journal of Environmental Health Sciences, volume 31, issue 5, 2005, Pages 444~450
The present study was designed to investigate whether traditional Korean fermented soybean paste(doen-jang) and soybean extracts have inhibitory effects on the growth of KB cell, an oral epithelioid cancer cell. When KB cell ATCC CCL-17 was cultivated for 48 flours with the addition of 0.5% of the five types or doen-jang extract, the growth of KB cell was inhibited by all types of extract, and ethyl acetate extract showed the highest inhibitory effect. In case of soybean extract, all types of extract also showed KB cell inhibitory effects, however, generally less than those of doen-jang extract. When ethyl acetate extract of doen-jang was added in different concentrations and KB cell was cultivated for 24 hours and 45 hours, strong inhibitory effect began to appear from the concentration of 1.25 mg/ml. Although soybean extract showed such a tendency, its effect was lower than that of doen-jang extract. These results indicate that doen-jang extract has inhibitory effect against KB cell, and particularly ethyl acetate extract has the highest effect. The effect of doen-jang extract might be possibly enhanced by the fermentation of soybeans. It is assumed that doen-jang extract may be used to develop nontoxic medicines for preventing and treating oral diseases.