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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 32, Issue 6 - Dec 2006
Volume 32, Issue 5 - Oct 2006
Volume 32, Issue 4 - Aug 2006
Volume 32, Issue 3 - Jun 2006
Volume 32, Issue 2 - Apr 2006
Volume 32, Issue 1 - Feb 2006
Selecting the target year
The Evaluation on the Pollution Level of Playgrounds for Children in Seoul Metropolitan
Lee, Jun-Bok ; Kim, Gyeo-Bung ; Jung, Kweon ; Kim, Min-Young ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 249~253
This survey study was performed to evaluate the pollution level of playgrounds for children at 49 different sampling sites in Seoul metropolitan. Results were as follows. 1. Soil pH ranged from 6.0 to 9.2. 2. Average concentrations of heavy metals were 0.101 mg/kg of Cd, 4.470 mg/kg of Cu, 0.10 mg/kg of As, 5.35 mg/kg of Pb, 0.017 mg/kg of
0.0051 mg/kg of Hg, which were lower than Korean soil precaution level. 3. The SPCs of all areas were below 100, which is 1st grade. In conclusion, the pollution level of playgrounds for children was safe.
Assessment of Airborne Bacteria and Particulate Matters Distributed in Seoul Metropolitan Subway Stations
Kim, Ki-Youn ; Park, Jae-Beom ; Kim, Chi-Nyon ; Lee, Kyung-Jong ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 254~261
In activity areas of subway workers and passengers in Seoul metropolitan subway lines 1-4, mein concentrations of airborne bacteria were relatively higher in workers' bedroom and station precinct whereas concentrations of particulate matters,
, were relatively higher in platform, inside train and driver's seat as compared with other activity areas. This result indicates that little correlation between airborne bacteria and particulate matters was found, which assumed that most airborne particulate matters distributed in subway consisted of mainly inorganic dust like a metal particles. Mean concentrations of
in station precinct and platform exceeded the threshold limit value (
) but those in station office and ticket office were below it. The genera identified in all the activity areas of subway over 5% detection rate were Staphylococcus, Micrococcus, Bacillus and Corynebacterium, of which Staphylococcus and Micrococcus covered over 50% of total airborne bacteria and were considered as predominant genera distributed in subway.
The Effect of Boiling Water on DBPs and Taste-and-Odor Compounds in Drinking Water
Kim, Chang-Mo ; Choi, In-Cheol ; Chang, Hyun-Seong ; Park, Hyeon ; Han, Sun-Hee ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 262~267
DBPs and T&O(taste-and-odor) compounds in drinking water is one of main source to deteriorate water quality. So, these compounds can cause adverse health effects and result in many consumer complaints aesthetically. This experiments carried out to investigate the effect of boiling water on DBPs and T&O compounds in the tap water. THMs and TCM concentration were reduced by 91.3%, 88.9% after 5 min of boiling, respectively. It is certainly, resulted from volatilization of TCM. TCAA concentration decreased when the water was boiled, too. By contrast, the concentration of DCAA was increased with duration time from boiling-point. The reduction of TCAA from the boiled water can be attributed to chemical transformation like decarboxylation. T&O compounds such as geosmin and 2-MIB was effectively removed by boiling of water, resulting in the removal efficiency of 97.1%, 94.4% after 5 min of boiling, respectively.
Assessment for Ingredients and Amount of Radiofrequency Electromagnetic Field Exposure for Indoor Environment in an Institution for the Aged of Downtown
Choi, Jung-Hun ; Kim, Nam ; Hong, Seung-Cheol ; Kim, Yoon-Shin ; Choi, Sung-Ho ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 268~274
In this study in order to evaluate the growth of RF propagation exposure rate generated according to the enhancement of its use, it is proposed for the ground to be able to examine and to contemplate the correlation between the human health and RF propagation exposure rate by measuring and analyzing the RF exposure source and exposure rate in an indoor environment. As a result of research, it is analyzed that the main exposure source of critically making effect in indoor environment is the frequency hand if radio broadcasting, mobile communication, wireless LAN, digital broadcasting, home appliance, etc., including the TV broadcasting. Among these, it is shown that the TV broadcasting and mobile communication band are the highest. And it is the concluded that RF exposure rate of the environmental sensitive equipment, like an institution for the aged, has lower possibility to exceed the human RF protection criteria by this evaluation.
Characterization and Assessment of Indoor Air Quality in Newly Constructed Apartments -Volatile Organic Compounds and Formaldehyde-
Sim, Sang-Hyo ; Kim, Yoon-Shin ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 275~281
Indoor air quality is the dominant contributor to total personal exposure because most people spend a majority of their time indoors. Especially exposure to indoor air can potentially pose a greater threat than exposure to ambient air when indoor environments have sources of contaminants. In this study, volatile organic compounds (VOCs) and formaldehyde (HCHO) within newly constructed apartment have been determined in 27 houses of apartment in Seoul from December 2004 to March 2005. The measured indoor air pollutants were HCHO, volatile organic compounds including benzene, toluene, styrene, xylene, ethylbenzene and sampled on the standard method of Ministry of Environment in Korea. The indoor levels for benzene, xylene, toluene, ethylbenzene, styrene, and HCHO have significant increase trend after 5 hours closing of windows and doors. Levels of measured air pollutants concentrations between living rooms and bedrooms have not shown significant difference. Spearman correlation coefficient among the measured air pollutants ranged from 0.303 to 0.946, indicating similar source in building materials.
Efficiency Comparison between Chlorine and Chlorine Dioxide to Control Bacterial Regrowth in Water Distribution System
Lee, Yoon-Jin ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 282~291
This study investigated the inactivation of the total coliform, an indicator organism in chlorine and chlorine in order to control microbial regrowth for water distribution systems and select an appropriate disinfection strategy for drinking water systems. The disinfection effects of chlorine and chlorine dioxide with regard to the dosage of disinfectant, contact time and DOC was investigated experimentally. In spite of the consistency of chlorine residuals at approximately 0.2 mg/l, bacteria regrowth was detected in the distribution system and it was confirmed by the scanning electron microscope results. The influence of organic carbon change on the killing effect of chlorine dioxide was strong.
The Characteristic of Volatile Organic Compounds(VOCs) Emission from the Type of Indoor Building Materials as the Temperature and Humidity
Seo, Byeong-Ryang ; Kim, Shin-Do ; Park, Seong-Kyu ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 292~303
The Volatile Organic Compounds(VOCs) are emitted from various sources and have lots of different form. Recently human are spending the many times at indoor area and indoor air pollution is issued the important social problem. The emission sources of indoor air pollutants are very various, also indoor building materials are composed of very complex chemical compounds, these indoor building materials discharge very much VOCs and other hazardous compounds. In this study, we performed the small chamber test to investigate the VOCs emission concentration and characteristics involving five kinds of the indoor building materials(furniture material, wooden floor, wall paper, paint and tile) under different conditions of four temperature and relative humidity as account of the air flow rate(AFR), air exchange rate(AER), loading factor and air velocity respectively. As the result, It was showed that building materials are emitted the highest VOCs concentration at the beginning of experiment and furniture material is emitted the highest VOCs concentration. Most of the materials were affected by temperature, but paint and tile material were affected by humidity.
A Meta-Analysis of Air Pollution in Relation to Daily Mortality in Seven Major Cities of Korea, 1998-2001
Cho, Yong-Sung ; Lee, Jong-Tae ; Son, Ji-Young ; Kim, Yoon-Shin ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 304~315
This study is performed to reexamine the association between ambient air pollution and daily mortality in seven major cities of Korea using a method of meta-analysis with the data filed for the period 1998-2001. These cities account for half of the Korean population (about 23 million). The observed concentrations of carbon monoxide (CO, mean=1.08 ppm), ozone (
, mean=33.97 ppb), particulate matter less than 10
), nitrogen dioxide (
, mean=25.09 ppb), and sulfur dioxide (
, mean=9.14 ppb) during the study period were at levels below Korea's current ambient air quality standards. Generalized additive models were applied to allow for the highly flexible fitting of seasonal and long-term time trends in air pollution as well as nonlinear associations with weather variables, such as air temperature and relative humidity. Also, we calculated a weighted mean as a meta-analysis summary of the estimates and its standard error. In city-specific analyses, an increase of
more deaths, given constant weather conditions. Like most of air pollution epidemiologic studies, this meta-analysis cannot avoid fleeing from measurement misclassification since no personal measurement was taken. However, we can expect that a measurement bias be reduced in district-specific estimate since a monitoring station is better representative of air quality of the matched district. Significant heterogeneity was found for the effect of all pollutants. The estimated relative risks from meta-like analysis increased compared to those relative risks from pooled analysis. The similar results to those from the previous studies indicated existence of health effect of air pollution at current levels in many industrialized countries, including Korea.
Assessment of the Level of Microbial Contamination in the Processing Company of Sandwich Products
Kim, Ji-Young ; Kim, Se-Ri ; Choi, Jin-Gil ; Je, Jung-Hyun ; Chung, Duck-Hwa ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 316~323
This study was performed to assess the microbial contamination level for the processing of sandwich products in the middle of Gyeongnam province from December 2004 to January 2005. A total of 85 samples were collected from 5 sandwich shops. These samples were tested sanitary indication bacteria, such as aerobic Plate count(APC), coliforms, and Escherchia coli and pathogenic bacteria such as Escherichia coli O157:H7, Salmonella spp., Listeria monocytogenes, and Staphylococcus aureus. As a result of APC and coliform count ranged 0-4.59
CFU/(ml, g, 100
, hand) and 0-3.86
CFU/(ml, g, 100
, hand), respectively. Especially, the highly contaminated items for APC were confirmed 1.64-4.59
CFU/g to employees', raw materials and sandwich in all items. Escherichia coli was isolated from 5 samples. Listeria monocytogenes and Staphylococcus aureus were detected in 1 sample and 11 samples from utensil, raw materials and sandwiches, respectively. However, Escherichia coli O157:H7 and Salmonella spp. were not detected in anywhere. For the production of safety sandwich, education of sanitation for employees, control of raw materials, and continuous monitoring for microorganism will be required.
Characteristics of the Distribution of High Ambient Air Pollutants with Sources and Weather Condition in Ulsan
Choi, Bong-Wook ; Jung, Jong-Hyeon ; Choi, Won-Joon ; Shon, Byung-Hyun ; Oh, Kwang-Joong ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 324~335
Five sampling sites were selected to investigate the distribution characteristics of air pollutants with pollution sources and weather conditions in Ulsan.
concentrations and weather conditions with time were analyzed by using several statistical methods. Also, the distribution characteristics of ambient air quality were estimated by pollution-rose and multi-regression analysis. As a result of the analysis,
concentrations were high in winter season, whereas
concentrations were high in summer season. This concentration distribution was caused by the unfavorable geographical location, which the residential area was located at the downwind direction to industrial area. From the pollution-rose, we confirmed that each pollutant influenced the downwind residential areas because of seasonal wind direction.
concentration has shown positive correlation of
and temperature, while
concentration has shown negative correlation. Also,
and CO concentrations, pollutants generated by combustion, have shown positive correlation, while
concentration and temperature have shown negative correlation. Therefore, it could be suggested that a seasonal air quality policy and a new guideline of air quality was necessary in each season with wind directions to reduce the air pollution level in Ulsan.
Poliovirus Decrease Effect by Activated Sludge Microbes
Kim, Tae-Dong ; Choi, Dong-Hyuk ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 336~341
The biological wastewater treatment system is known to have an important role in reducing the quantify of enteric virus in water environments. To clarify the roles of activated sludge microbes in decreasing the virus infectivity, the behavior of the virus in bacteria, protozoa, and metazoa was examined by pure or mixed culture system using poliovirus type 1(Lsc, 2ab strain). In the bacterial culture systems, the virus infectivity in the liquid phase decreased by a reversible adsorption of the virus to the bacteria or bacterial flocs. On the other hand, in the protozoa and the metazoa culture systems using T. pyriformis and P. erythrophthalma, respectively, with a variety of bacterial strains as prey, the main virus decrease mechanism of reversible adsorption in early stage was changed to irreversible predation, which was not eluted in this study. The virus decrease was more effective in the P. erythrophthalma culture system, which had high predation and floc forming abilities. However, in the mixed culture system of Z. ramigera and P. erythrophthalma, the more rapid reversible adsorption of virus to Z. ramigera flocs preceded the irreversible predation of P. erythrophthalma.
THe Effects of the Administration on Oriental Medicine, Dalsaengtang, in the Pregnant Rat and Their Fetuses
Park, Hae-Mo ; Kim, Chang-Seok ; Lee, Sun-Dong ; Lee, Jang-Woo ; Ryu, Jae-Hong ; Kim, Pan-Gyi ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 342~352
The experiments was undertaken to evaluate the effects of herbal medicine, Dalsaengtang, in pregnant rats and fetuses. Female Sprague-Dawley rats were orally administered with the Dalsaengtang at dose of 5 mg/kg/day for 20 days. Pregnant rats were sacrificed at 20th day of gestation, and observed internal and reproductive organs. Approximately live fetuses in the 20th day of gestation were randomly selected and fixed in 95% ethanol. To observe skeletal malformations, fetuses were stained with alcian blue and alizarin red S. Maternal body weight of dalsaengtang treated group has a tendency to increase compared to that of control group. The relative liver and kidney weights of dalsaengtang treated group were also increased to that of control group. There were no significant changes between two groups in blood chemistry and hematological values. There were no significant changes in number of corpus luteum, implantation, live fetuses and implantation rate, delivery rate, late resorption rate and sex ratio. But Dalsaengtang administered group showed lower early resorption rate than the control group. From the sex ratio, number of females, bigger than number of males in the control group, and more males than females in Dalsaengtang administered group. Neonatal body weight and number of fetus of Dalsaengtang group were increased to that of control group. The fetuses of dams treated with Dalsaengtang didn't showed external malformation. Vertebral and sternal variations were observed in Dalsaengtang group but, compared to the control, those variations were insignificant. The number of ribs, cervical, thoracic, and lumber were normal. The number of sacral and caudal vertebrae were increased. Fetuses showed significant difference in the number of caudal vertebra (P<0.01). From these results, it can be concluded that Dalsaengtang showed no toxicity effects on maternal body weight, early resorption rate, and number of live fetuses. There were no significant changes in organ weight, hematological data, reproductive organs. Although skeletal variations were showed in vertebrate and sternum, Dalsaengtang did not shown significant changes in bone malformation.
A Study on Variation of Colony Forming Units of Heterotrophic Bacteria by Input Ratios of Bulking Materials in Aerobic Composting of Food Wastes
Park, Seok-Hwan ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 353~358
This study was performed to evaluate the effects of input ratios of bulking material in aerobic composting of food wastes on variation of colony forming units of heterotrophic bacteria. Wood chips were used as a bulking material. Volume ratios of food wastes to wood chips in reactor of Control, WC-1 and WC-2 were 10/0, 10/5 and 10/10, respectively. Reactors were operated for 24 days with 1hour stirring by 1rpm and 2 hours of the forced aeration per day. WC-2 reached high temperature range faster than WC-1, and the maximum temperature of WC-2 was higher than that of WC-1. This means that the reaction velocity of composting of WC-2 was faster than that of WC-1. Judging from the profile of pH changes, composting of WC-1 proceeded slowly and continuously. Composting of WC-2 proceeded rapidly in the former half reaction period, and kept steady state of high pH in the latter half reaction period. Namely, composting of WC-2 was nearly completed in the former half reaction period. In the case of WC-1 and WC-2. the maximum temperature was followed by the rapid pH increase in 2-3 days, and this was followed by the maximum Colony Forming Units(CFU) in 3 days. But, these three items of WC-2 always appeared faster and higher than those of WC-1.
Deposition Characteristics of Water-soluble Inorganic Ions in the Iksan Ambient Air during Fall, 2004
Kang, Gong-Unn ; Kim, Nam-Song ; Jeon, Seon-Bok ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 359~372
In order to investigate the daily deposition characteristics of water-soluble inorganic components in airborne deposit on the Iksan, deposition samples were collected using a deposition gauge from October 16 to November 1, 2004. Deposition samples were collected using two different sampling gauges, a dry gauge and a wet gauge, respectively. To get wet the bottom of wet gauge during the sampling period, the volume of
distilled ionized water was added in a wet gauge before the beginning of each deposition sampling. Deposition samples were collected twice a day and analyzed for inorganic water-soluble anions (
) and cations (
) using ion chromatography. Qualify control and quality assurance of analytical data were checked by the data obtained from reinjection of standard solution, Dionex cross check standard solutions, and random several deposition samples, and measured data was estimated to be reliable. Considering the deposition sample volume, the sampling time, the surface area of sampling container, and the ion concentration measured, the daily deposition amounts for measured ions were calculated in
. The total daily deposition amounts of all measured ions for dry and wet gauge were
, respectively. A significant increase in deposition amount during rainfall days was observed for both wet gauge and dry gauge, having no difference of deposition amount between in wet gauge and in dry gauge. The mean deposition of all ions measured in this study were higher in wet gauge than in dry gauge because of the surface difference of the sampling container, especially for
. The mean deposition amounts of
in wet gauge were found to be about 10 times and 3 times higher than those in dry gauge, while the rest of the chemical species were equal or a little higher in wet gauge than in dry gauge. Dominant species in dry gauge were
, accounting for 21% and 28% of the total ion deposition, whereas those in wet gauge were
, accounting for 19% and 41% of the total ion deposition, respectively.
A Study on the Optimization of Reflector for Reactor Using Solar
Kim, Dong-Seog ; Park, Young-Seek ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 373~380
The photocatalytic reactor using immobilized
on silicone sealant was studied bench scale using solar light as the source of radiation. The influences of parameters such as shape, polishing extent and size of reflector, distance between reactor and reflector, an angle of inclination between reactor system and ground, were studies using Rhodamine B (RhB) as a model compound. respectively. The decolorization of round type among the reflector shapes was higher than that of the polygon and W type. The polishing extent of the reflector did not show the decolorization largely. The optimum size of reflector and distance between reactor and reflector were 38 cm and 6 cm, respectively.
Isolation of Novel White-rot Fungus and Effect for Decolorization of Dye Wastewater
Nam, Youn-Ku ; Kwon, Hyuk-Ku ; Lee, Bong-Joon ; Lee, Jang-Hoon ;
Korean Journal of Environmental Health Sciences, volume 32, issue 4, 2006, Pages 381~385
For decolorization of synthetic dyes, One fungus(HUE05-1) which was isolated from textile wastewater collected from industrial complex in Korea showed excellent ability of removing synthetic dyes. This fungus was identified as Basidiomycetes species by Internal Transcribed Spacers (ITS) sequence. Isolated fungi. HUE05-1 completely decolorized all dyes in both solid and liquid condition. The decolorization results were Reactive Orange-16, 97.12%; Reactive Blue-19, 92.09%; Reactive Blue-49, 97.04%; Reactive Yellow-145, 95.53%; Acid Orange-10, 99.18%; Acid Violet-43, 98.73%; Acid Blue-350, 94.71% and Disperse Blue-106, 90.07%.