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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 39, Issue 6 - Dec 2013
Volume 39, Issue 5 - Oct 2013
Volume 39, Issue 4 - Aug 2013
Volume 39, Issue 3 - Jun 2013
Volume 39, Issue 2 - Apr 2013
Volume 39, Issue 1 - Feb 2013
Selecting the target year
Review of Humidifier Lung Cases Caused by Use of Humidifier - Focusing on Probable Environmental Causal Agents -
Park, Donguk ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 105~116
DOI : 10.5668/JEHS.2013.39.2.105
Background: In Korea, there is low awareness of the respiratory health problems caused by the use of humidifiers, leading to a lack of governmental measures. Objectives: The objectives of this study were to review cases of varying degrees of humidifier lung and fever in connection with the use of humidifiers and to summarize the probable environmental agents causing these cases. Methods: We searched all articles reporting on humidifier lung, humidifier fever, and humidifier diseases caused by the use of a humidifier both at home and in the workplace. Results: We summarized a number of cases of varying degrees of respiratory diseases resulting from inhalation of water mist of humidifiers containing various species of bacteria and fungi and their toxins. Type of respiratory disease connected with humidifier lung includes interstitial pneumonitis, hypersensitivity pneumonitis, fever and several respiratory symptoms. Non-tuberculous mycobacteria (NTM), Actinomycetes, endotoxins and contaminated humidifier water were the most commonly suspected probable environmental agents causing humidifier lung. In Korea, the use of humidifier biocide is suspected as a likely cause of fatal lung injury including death and lung transplantation. Conclusion: Governmental policy should be devised and measures including a national surveillance system should be taken to prevent humidifier lung caused by the use of humidifiers.
Correlation between Hair Mercury Concentration and Blood Total Mercury in Several Area Residents
Kim, Gyeong-Yeon ; Seo, Jeong-Wook ; Kim, Byoung-Gwon ; Kim, Yu-Mi ; Kim, Rock-Bum ; Kim, Dae-Seon ; Kim, Jung-Man ; Kim, Choon-Jin ; Hong, Young-Seoub ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 117~129
DOI : 10.5668/JEHS.2013.39.2.117
Background: This study was carried out for the purpose of comprehensively evaluating the mercury exposure level of residents in several areas and the correlation between hair mercury concentration and blood mercury concentration. Method: One thousand one hundred ninety seven subjects were sampled from 30 sites using random assignment sampling. We performed a questionnaire survey and measured the level of total mercury in hair and blood samples from all subjects. Results: The geometric mean concentrations of hair and blood mercury in all subjects were 1.27 mg/kg [95% confidence interval (CI): 1.23-1.32 mg/kg] and 5.24
[95% CI: 5.07-5.41
], respectively. Male (1.56 mg/kg in hair, 6.00
in blood) was significantly higher than that of female (1.03 mg/kg in hair, 4.56
in blood), and the concentrations were elevated as age increased up to the 50s. Education, smoking, alcohol drinking, and using of pesticides were also shown to influence mercury concentrations in hair and blood. The ratio of hair/ blood mercury concentration was 261.3. The total mercury concentration in hair was identified to be significantly related with total mercury concentration in blood (r=0.814, p<0.001). Conclusion: The geometric mean concentrations of hair and blood mercury were higher than the levels provided in international recommendations. The total mercury concentration in hair was positively correlated with the concentration in blood. The results of this study suggest that hair mercury be considered as a useful tool for the evaluation of mercury exposure.
Prediction of Human Health and Ecotoxicity of Chemical Substances Using the OECD QSAR Application Toolbox
Kim, Jungkon ; Seo, Jung-Kwan ; Kim, Taksoo ; Kim, Hyun-Kyung ; Park, Sanghee ; Kim, Pil-Je ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 130~137
DOI : 10.5668/JEHS.2013.39.2.130
Objectives: The OECD QSAR Application Toolbox was developed by the Organisation for Economic Cooperation and Development (OECD) to facilitate the practical use of QSAR approaches in regulatory contexts as well as to reduce the need for additional animal testing. In this study, human health and the ecotoxicity of chemicals were predicted by applying the OECD QSAR Application Toolbox and the results were compared with experimental data in order to evaluate the applicability of this program. Methods: Read-across, trend analysis, and QSAR of OECD QSAR Application Toolbox were used for the prediction of toxicity. Results: The toxicity prediction was conducted on 6,354 chemicals for which toxicity data have been produced on the six endpoints of skin sensitization, skin irritation, eye irritation, mutagenicity, and acute toxicities of fish and Daphnia. From the total of 6,354, we obtained prediction results for 1,621 chemicals (25.5%). Conclusions: The predicted properties of mutagenicity, skin sensitization, and acute aquatic toxicities were reasonably good when compared with experimental data, but other endpoints were not due to the limitation of applicable chemical groups.
Radon Concentration Assessment of Studio Apartments surrounding a University
Lee, Seokyong ; Lee, Youngmoo ; Park, Jihyun ; Kim, Sunshin ; Hong, Gayeon ; Ahn, Hogi ; Yang, Wonho ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 138~143
DOI : 10.5668/JEHS.2013.39.2.138
Objective: Building materials can generate radon in indoor environments. This study aims to assess the radon concentrations of studio apartments around a university. Methods: 25 studio apartments around a University in Gyoungsan, Korea were measured for concentrations of radon. We evaluated the radon concentrations by using short-term continuous radon monitors at the studio apartments around the university, and analyzed the correlation between indoor radon concentration and factors affecting it, such as year of construction. Results: The average concentration of radon was 2.03 pCi/L(75.11
in the studio apartments. This radon level was lower than the radon standard for public use facilities in Korea and US EPA's standard of 4 pCi/L. However the measured radon levels were much higher than those previously reported in conventional dwellings. There was a statistically correlation between year of construction and radon concentrations in studio apartment buildings. Conclusion: It is suggested that recently built studio apartments might be constructed with phosphogypsum board that features higher radon emissions, and occupants are highly exposed to radon.
Exposures to Ultrafine Particles, PM
in Cooking and Non-Cooking Areas of Department Stores in Seoul
Cho, Hyeri ; Gu, Seulgi ; Kim, Jeonghoon ; Kim, Satbyul ; Lee, Kiyoung ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 144~150
DOI : 10.5668/JEHS.2013.39.2.144
Objectives: Cooking activity in indoor environments can generate particulate matter. The objective of this study was to determine the concentrations of ultrafine particles (UFP),
in cooking and non-cooking areas of major department stores in Seoul. Methods: Eighteen department stores in Seoul, Korea were measured for concentrations of particulate matter. Using real-time monitors, concentrations of UFP,
were simultaneously measured in cooking and non-cooking areas on the floor with a food court and a non-cooking floor. Results: The concentrations of UFP,
were significantly higher in cooking areas than in noncooking areas and non-cooking floors (p<0.05). UFP and
were significantly correlated in cooking areas and non-cooking areas but not in non-cooking floors.
were consisted of approximately 81% in
and highly correlated with
in all places. Conclusion: A higher correlation between UFP and
was shown on cooking floor than on non-cooking floor in department stores. High levels of fine particles were caused by cooking activities at food courts. The further management of PM is needed to improve the indoor PM levels at food courts in department stores.
Depositional Characteristics of Atmospheric PCBs in Several Media Used Passive Air Samplers
Chun, Man-Young ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 151~158
DOI : 10.5668/JEHS.2013.39.2.151
Objective: This study was carried out to determine the depositional characteristics of pine needles, pine tree bark, moss, and soil, which are used as a passive air sampler (PAS) of atmospheric polychlorinated biphenyls (PCBs). Methods: All four media were sampled from the same site. PCB concentrations were analyzed by GC/MSD, and the lipid contents were measured using the gravimetric method. Results: The total PCB concentration (IUPAC No. 28, 52, 101, 138, 153, 180) was the highest in soil (227.97 pg/g dry), followed by pine needles (71.36 pg/g dry), pine tree bark (44.58 pg/g dry), then moss (21.91 pg/g dry). Pine needles contained the highest lipid contents (21.31 mg/g dry), whereas soil (10.01 mg/g dry), pine tree bark (4.85 mg/g dry), and moss (1.92 mg/g dry) contained less. The concentration of lower-chlorinated PCBs was relatively high in pine needles, pine tree bark and moss, but not in soil. The PCB concentrations were proportional to their lipid contents in pine needles, pine tree bark and moss, but a different trend was revealed in soil. Conclusions: The PCBs concentrations in the media were affected by various factors including atmospheric PCB concentrations, lipid contents, and depositional pathways. However, each of these factors had a varying influence depending on the type of medium.
Estimation of Atmospheric PCBs Concentrations of Several Sites Using Pine Needles as Passive Air Sampler(PAS)
Chun, Man-Young ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 159~165
DOI : 10.5668/JEHS.2013.39.2.159
Objective: This study was carried out in order to estimate atmospheric Polychlorinated Biphenyls (PCBs) concentrations using pine needles as a passive air sampler (PAS) in urban, semi-rural and rural regions. Methods: One-year old pine needles were collected to analyze their PCBs concentrations (
, pg/g dry) at the end of December. PCBs concentrations in ambient air (
) were calculated with the
) model. Results: PCBs concentrations in ambient air (
) were high in the order of urban, semi-rural and rural regions. The lower-chlorinated PCBs showed a higher concentration in ambient air. However, the distribution of PCBs congeners was similar in all three regions. Correlation between
and the population density of the three regions was significant (
=0.9834, p<0.001). Conclusions: It was concluded that although the production and use of PCBs was banned in the1970s, PCBs are currently being produced unintentionally by human activities.
Molecular Epidemiology of Legionella pneumophila Isolated from Water Supply Systems in Seoul, Korea
Jeon, Su Jin ; Jung, Ji Hun ; Seung, Hyun Jung ; Kim, Chang Kyu ; Jin, Young Hee ; Oh, Young Hee ; Choi, Sung Min ; Chae, Young Zoo ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 166~177
DOI : 10.5668/JEHS.2013.39.2.166
Objectives: The genus Legionella is common in aquatic environments. Some species of Legionella are recognized as potential opportunistic pathogens for human, notably Legionella pneumophila that causes, Legionellosis. Thus, we investigated the contamination of Legionella pneumophila on water supply systems in Seoul, including cooling towers, public baths, hospitals and fountains. Methods: The existence of 16S rRNA and mip gene of L. pneumophila was confirmed in the genome of the isolated strains by PCR. Results: During the summer season of 2010 and 2011, Legionella pneumophila were detected from 163 samples (21.1%) out of 772 samples collected. Among the 163 strains of L. pneumophila, eighty one isolates belonged to serogroup 1 (57.4%), 23 isolates were serogroup 5 (16.3%), 21 isolates were serogroup 6 (14.9%), 8 isolates were serogroup 2 (5.79%), and 8 isolates were identified in serogroup 3 (5.7%). Through PFGE (pulsed-field gel electrophoresis) analysis using Sfi I, genetic types of L. pneumophila were classified into five (A to E) patterns by the band similarity with excess of 70% from public baths. Conclusions: The PFGE patterns of the serotypes showed a tendency for diversity of L. pneumophila. Our results suggest the existence of serological and genetic diversity among the L. pneumophila isolates.
Genotypes and Infection Status of Human Enterovirus Associated with Enteric and Respiratory Patients in Seoul, Korea
Jang, Jungim ; Oh, Seah ; Park, SangHun ; Ham, HeeJin ; Jo, Sukju ; Choi, Sungmin ; Kang, Byunghak ; Hwang, SeoYeon ; Kim, JinSeok ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 178~186
DOI : 10.5668/JEHS.2013.39.2.178
Objective: Human enteroviruses (HEVs) are a common causative agent of gastrointestinal or respiratory infections. In this study, to examine the genotypic diversity and characteristics of HEVs associated with patients in Seoul, we collected and analyzed stool and throat swab samples taken from patients with acute gastroenteritis or a common cold from 2011 to 2012. We researched the difference in genetic characteristics of HEVs from gastroenteritis and respiratory patients. Methods: For genetic analysis, we amplified the 5'-noncoding region and partial VP1 region of HEVs by RT-PCR. The genotypes of HEVs were further identified based on nucleotide sequences of the VP1 region. Results: The majority of the HEV infections in Seoul occurred from June to August. The molecular characteristic assay showed that although the majority of HEVs can be propagated by a fecal-oral route, Coxsackievirus A2 (n=13, 19.4%), A4 (n=8, 11.9%), and A5 (n=4, 6.0%) can be preferentially transmitted by a respiratory route. Conclusions: This Enterovirus surveillance system plays an important role in preparing for a severe outbreak. The genotypic characteristics of HEV may provide potentially useful data needed for epidemiological studies.
E. coli Disinfection Using a Multi Plasma Reactor
Kim, Dong-Seog ; Park, Young-Seek ;
Korean Journal of Environmental Health Sciences, volume 39, issue 2, 2013, Pages 187~195
DOI : 10.5668/JEHS.2013.39.2.187
Objectives: For the practical application of the dielectric barrier discharge plasma reactor, a plasma reactor able to manage large volumes of water is needed. This study investigated the possibility of the practical application of a multi-plasma reactor which is a scaled-up version of a single plasma reactor. Methods: The multi-plasma reactor consists of several high-voltage transformers and plasma modules (discharge, ground electrodes and quartz dielectric tubes). The effects of water characteristics such as voltage (30-120 V), air flow rate (1-5 l/min), number of high-voltage transformers and plasma modules, and water quality on Escherichia coli (E. coli) disinfection and decrease of COD and
absorbance were investigated. Results: The experimental results showed that at a voltage of over 80 V, most of the E. coli were disinfected within 90 seconds. E. coli inactivation was not affected by the air flow rate. E. coli disinfection in the multiplasma process showed the traditional log-linear form of the disinfection curve. E. coli inactivation performance by transformer 3-Reactor 5 and transformer 3-Reactor 3 were similar. The disinfection performance of the UV process was affected by artificial sewage water. However, the plasma process was less affected by the artificial sewage within the standards for effluent water quality. Conclusions: Disinfection performance with several low voltages and plasma modules of three to five in number applied to the plasma process was higher than that concentrating a small amount of high voltage through a single plasma reactor. Removal of COD,
absorbance, and E. coli disinfection with the plasma process were better than with the UV process.