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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
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Volume & Issues
Volume 35, Issue 6 - Dec 2009
Volume 35, Issue 5 - Oct 2009
Volume 35, Issue 4 - Aug 2009
Volume 35, Issue 3 - Jun 2009
Volume 35, Issue 2 - Apr 2009
Volume 35, Issue 1 - Feb 2009
Selecting the target year
School Indoor Air Quality and Health Effects
Yang, Won-Ho ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 143~152
DOI : 10.5668/JEHS.2009.35.3.143
Indoor air quality at classrooms is of special concern since students are susceptible and indoor air problems can be so subtle that it does not always produce easily recognizable health effects. The main objectives of the study were to investigate the time-activity pattern of school students, to determine the sources of poor indoor air quality in schools, and to demonstrate how indoor air quality in schools causes adverse health effects such as headache, upper airway irritation, fatigue, and lethargy. Recent articles ranging from 1987-2009 related to school indoor air quality were systematically reviewed. Building-associated health effects can increase student absences from school and degrade the performance of children while in school. The reduced ventilation rate was associated with a decreased ability to concentrate along with increased adverse health symptoms. There was an association between residential proximity to busy roads and a variety of adverse respiratory health outcomes in children. Consequently, the current findings suggest the need for control strategy for school indoor air pollutants with multidisciplinary approach methods because Korea has no other natural resources except manpower especially.
A Study of Working Environment for Automotive Painting in Auto Repair Shops and Workers' Exposure to Hazardous Chemicals
Sim, Sang-Hyo ; Jeoung, Chun-Hwa ; Lim, Jin-Suk ; Lee, Hyung-Gu ; Kim, Yoon-Shin ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 153~161
DOI : 10.5668/JEHS.2009.35.3.153
The purpose of this paper is to evaluate 1) blood lead levels of workers at auto repair shops as Biological Exposure Indices (BEI) of toxic substances such as lead and toluene that are produced during automotive painting process, 2) the differences depending on personal characteristics of workers who have been exposed to toluene by using urine hippuric acid concentration as a marker and 3) the correlation between the concentration of hazardous chemicals in each workplace and the BEL. All subjects were male with a mean age of 36.2 years. In terms of age, most were in the 30 to 40 age group (13 persons, 48.1%). In relation to the length of work experience, the highest proportion had experience of 10 years of less (18 persons, 66.7%). Twenty three workers were cigarette smokers (85.2%) while 4 (14.8%) were non-smokers. In addition, more than 80% of the workers drank alcohol. Dust concentration and toluene exposure during automotive painting showed no significant difference with age, length of work experience, smoking and drinking while a significant difference (p<0.05) has been detected between lead concentration and smoking. The geometric mean of dust concentration, lead concentration and toluene concentration were
and 1.08ppm respectively. In addition, the geometric mean of blood lead levels and urine hippuric acid concentration were
and 0.25g/g respectively, which were lower than the standard levels suggested by the Ministry of Labor. To determine the influential factors on blood lead and urine hippuric acid concentrations, a correlation analysis has been conducted with variables of air, lead and toluene concentrations, age, length of work experience and amount of cigarette smoking. According to the analysis, a relatively high correlation (p<0.01) has been observed between air lead concentration and biological sample concentration.
Investigation of Microbial Contamination of Public Bath in Jongno-gu, Seoul
Kim, Mi-Soon ; Lee, Young-Min ; Kim, Seong-Keun ; Seo, Ji-Hyun ; Ji, Kyung-Hee ; Oh, Ji-Yoon ; Ko, Ki-Dong ; Ko, Gwang-Pyo ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 162~168
DOI : 10.5668/JEHS.2009.35.3.162
The aim of this study is to investigate microbial sanitary condition of public baths in Seoul, Korea. A total of 28 water samples were collected from 14 different public baths and sudatoriums. The prevalence of fecal indicator microorganisms such as total coliform, fecal coliform, and Escherichia coli was characterized. In addition, bacteria in water was membrane filtered by 0.45um nitrocellulose membrane, and the filter was analyzed by both cultivation and PCR amplification of partial 16S rRNA gene. The levels of chlorine were measured for each of water samples. More than 40% of 14 collected water samples, the concentrations of total coliform bacteria exceeded the water quality for bath water guideline. There was no significant correlation between chlorine residue and the presence of total coliform. Various microorganisms including pathogenic microorganisms were identified from cultivation and subsequent analysis of 16s rRNA gene sequences. Our results suggest that appropriate hygiene practice and continuous monitoring is needed for reducing health risk associated with public bathhouses.
Prevalence Rate and Etiologic Risk Factors of Atopic Dermatitis in the Preschool Children in Changwon
Lee, Jong-Keun ; Lee, Ho-Sung ; Ha, Jin-Sil ; Park, Dong-Jin ; Paik, Do-Hyun ; Ha, Kwon-Chul ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 169~177
DOI : 10.5668/JEHS.2009.35.3.169
In the past decade there has been increasing concern about the atopic dermatitis (AD) associated with environmental diseases. AD has been increased in the last decade and known as one of the multifactoral diseases, which has the genetic background and environmental factors at the same time. The purposes of this study were to investigate the prevalence rate and etiologic risk factors of atopic dermatitis in preschool children in Changwon, which is a one of the Korean cities and has a large industrial complex. We reviewed and analyzed the statistical data, obtained from Korea National Health Insurance Corporation, related to prevalence rate by age and administrative district. A cross-sectional questionnaire survey, based on ISAAC (International Study of Allergy and Asthma in Childhood), was conducted on random samples of preschool children (5 to 8 years old) of large sized kindergartens in Changwon. The lifetime and last one years prevalence of AD in preschool children in Changwon was increased from 1998 to 2008. The prevalence rate of AD in the preschool children in Changwon city was 9.6%. The prevalence rate in boys was 9.7% and that in girls was 9.4%. The one year prevalence of AD was ranked as middle among other provincial cities in Korea in 2008. This study showed that the prevalence rate of the atopic disease in Changwon was 9% in 2008, which was increased especially compare to 2000. More active governmental approaches for control and prevention of atopic dermatitis for children are recommended. Further studies are needed for more accurate estimation of the prevalence of AD in Korea including different regional and age population.
Effect on Plant Growth and Antibiosis of Rice Straw Liquor Extracted from Rice Straw
Kang, Hwa-Young ; Kim, Se-Hoon ; Kim, Young-Ju ; Park, Sang-Sook ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 178~186
DOI : 10.5668/JEHS.2009.35.3.178
Rice straw liquid was prepared from rice straw using simple pyrolysis furnace, and its effects on plant growth and antibiosis were investigated. Effects of straw liquid on plant growth of Oryza sativa L., Glycine max Merr. and Lactuca sativa L. and antibiosis of bacteria and mold of rice straw liquid were studied. Th rice straw liquid showed good results on plant growth and multiplication. Rice straw liquid showed a little antibiosis on bacteria but non antibiosis on mold. Rice straw liquid had minimal inhibitory concentration of 2.5-5% for bacteria.
Prevalence and Identification of Cryptosporidium spp. from Swine Slurry
Chun, Kae-Shik ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 187~190
DOI : 10.5668/JEHS.2009.35.3.187
Cryptosporidium spp. were detected in 17 of 135 swine lagoon samples from five farms by 18S ribosomal DNA locus and PCR. Seventeen positive samples identified were included two distinctive genotypes C. suis and Cryptosporidium sp. based on a small-subunit rRNA gene-based PCR-restriction fragment length polymorphism analysis. Cryptosporidium spp. were detected out of farrowing, farrowing and nursery (mix), and finishing. Prevalence rate was 12.6% with infection rates between 3.7 and 18.5%. We concluded that Cryptosporidium oocysts can persist in treated lagoon and potentially contaminate surface water through improper discharge. This study was undertaken for the evaluation of the infection status of the genotypes of Cryptosporidium spp. in swine lagoon.
The Relationship Between Odor Unit and Odorous Compounds in Control Areas Using Multiple Regression Analysis
Kim, Jong-Bo ; Jeong, Sang-Jin ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 191~200
DOI : 10.5668/JEHS.2009.35.3.191
We investigated a trait of odor and the relationship between odor unit and odorous compounds using multiple regression analysis based on data compiled from Sihwa (SIC), Banwol (BIC), Banwol plating (BPIC) and Poseung industrial complex (PIC). These areas are odor control areas in Gyeonggi province. It was revealed that
and styrene concentrations in SIC and BPIC were relatively higher and
concentration especially in mc was more than five times higher than other areas. As a result of regression analysis using SAS, intensity of odor unit was highly related to concentrations of
, TMA, styrene and n-valeraldehyde in SIC,
, acetaldehyde, and butyraldehyde in BPIC and
Electrochemical Degradation of Phenol by Electro-Fenton Process
Kim, Dong-Seog ; Park, Young-Seek ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 201~208
DOI : 10.5668/JEHS.2009.35.3.201
Oxidation of phenol in aqueous media by electro-Fenton process using Ru-Sn-Sb/graphite electrode has been studied. Hydrogen peroxide was electrically generated by reaction of dissolved oxygen in acidic solutions containing supporting electrolyte and
was added in aqueous media. Phenol degradation experiments were performed in the presence of electrolyte media at pH 3. Effect of operating parameters such as current, electrolyte type (NaCl, KCl and
) and concentration,
concentration, air flow rate and phenol concentration were investigated to find the best experimental conditions for achieving overall phenol removal. Results showed that current of 2 A, NaCl electrolyte concentration of 2g/l, 0.5M concentration of
, air flow rate of 1l/min were the best conditions for mineralization of the phenol by electro-Fenton.
Antimicrobial Effect of Organic Acid and Distribution of Vibrio parahaemolyticus from the Incheon Adjacent Sea
Jang, Jae-Seon ; Kim, Yong-Hee ; Yoon, Byoung-Jun ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 209~213
DOI : 10.5668/JEHS.2009.35.3.209
This study was carried out to investigate the distribution of V. parahaemolyticus in Incheon adjacent sea, and anti-microbial effect on growth of V. parahaemolyticus in organic acid. The detected strains were compared for geography, months and sample types. V. parahaemolyticus was detected form 28.5 percent of 287 samples collected from Incheon area, and 34.7 percent of 91 samples collected in the months of July through September, and 24.7 percent of 279 shellfish samples respectively. The minimun inhibitory concentration(MIC) of organic acid in V. parahaemolyticus were 1,250ppm at propionic acid, citric acid and acetic acid, 2,500ppm at vanillic acid, respectively. MICs of combined treatment of acetic acid and vanillic acid, citric acid and vanillic acid, propionic acid and vanillic acid were 1,250 ppm. MICs of combined treatment of citric acid and acetic acid, propionic acid and acetic acid, propionic acid and citric acid was 12.5ppm. The antimicrobial effect of organic acid in V. parahaemolyticus was confirmed from the result of this experiment.
A Study on the Removal of Nitrogen and Phosphorus by Operation Mode for Livestock Wastewater Treatment Post-process Using SBR
Choi, Gun-Youl ; Lee, Young-Shin ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 214~219
DOI : 10.5668/JEHS.2009.35.3.214
This study examined the removal efficiency of the nitrogen and phosphorus in order to compensate for the combined process of ATAD(Autothermal Thermophilic Aaerobic Digestion) and EGSB(Expended Granular Sludge Bed), which are treatment methods for livestock wastewater, by introducing SBR(Sequencing Batch Reactor) as post-treatment process. The analysis on the treatment efficiency of each operation mode showed that, in the case of T-N, the treatment efficiency were 67.1% and 74.2% for Run-1 and Run-2, respectively, and in the case of T-P, the values were 71.2 and 74.1, respectively, which are indicating that the treatment efficacy is higher in the condition of Run-1, in which the time period of Anoxic and Aerobic segments were increased. In addition, the result of analyzing removal characteristics of nitrogen and phosphorus by Influx load showed that removal efficiency of nitrogen was better in the case of high influx load than in the case of low influx load. Regardless of Influx load, phosphorus showed constant influx concentration, so that removal efficiency of phosphorus was influenced littler by Influx load than that of nitrogen. This study also fed methanol as an external carbon source and performed experiment to induce denitrification under anoxic condition by using nitrate among nitrogen compounds of SBR reactor, and the results showed that intermittent feeding was more effective in Nitrogen Removal than composite feeding.
A Study on Water Quality and Amount of Flowing at Nonpoint Source of Nairin Stream
Huh, In-Ryang ; Park, Sung-Bin ; Oh, Heung-Seok ; Kim, Yeong-Jin ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 220~225
DOI : 10.5668/JEHS.2009.35.3.220
This study evaluates the water quality of the river near the alpine farmland in the upper Naerin stream, which is a typical stream of the upper Bukhan River with muddy water generation, by the flow examination, it aims to estimate the characteristics of nonpoint sources flowing out from the investigated area and figure out effective methods to reduce them. According to the result of water quality examination, the average BOD of the area not affected by the cultivated land among the areas of the upper Naerin River was 0.47mg/l, and total phosphorous was 0.007mg/l; thus, it maintained the cleanliness level of Ia. The average BOD of the area with the alpine farmland was 0.52mg/l, which was similar to the one of the non-cultivated land. But total phosphorous concentration was 0.023mg/l, which was more than three times higher than the area belonging to level II due to the effect of fertilizer ingredients discharged from the cultivated land. About the loadings of the investigated area generated from each of the pollution sources, BOD was 878.5kg/day and total phosphorous was 79.7kg/day. Moreover, for the load density, BOD was
and total phosphorous was shown as
. Regarding the rates generated from nonpoint sources like land among the loadings per pollution sources, BOD was 54%, total nitrogen was 91%, and total phosphorous was 73.4%. Therefore, it was shown that most of the nutrients were produced from the nonpoint sources. The level of BOD runoff loading in the Jaun River area, where nonpoint sources were mainly generated, was 37.1kg/day and total phosphorous was 1.33kg/day. The flow rates to the generated amount were estimated as 10.5% and 4.7% each.
Manufacturing Characteristics of Environmental-friendly Waste Ash Brick with Industrial By-Products
Kim, Han-Seok ; Jung, Byung-Gil ; Kim, Dae-Yong ; Kang, Dong-Hyo ; Jang, Seong-Ho ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 226~234
DOI : 10.5668/JEHS.2009.35.3.226
The main objective of this study was to evaluate the effects on shape and size, compressive strength, water absorption and heavy metals leaching with various weight mixing ratios in waste ash brick products using waste recycling MSWI(Municipal Solid Waste Incinerator) bottom ash, steel slag and waste building material. The manufacturing processes for the waste ash brick consist of screening, mixing, conveyor transmission, compaction.forming, and curing steps of raw materials. The weight mixing ratios of steel slag around bottom ash were adjusted within the ranges of 10% to 30%. The reported results show that the width and thickness of the manufactured waste ash brick could be satisfied with
, respectively which are K.S. standards of products qualities. And in case of length, only 20-Ba50Ss30, 20-Ba60Wb20 and 20-Ba50Wb30 for the mixing ratios could be satisfied with
that is K.S. standards of products quality. The compressive strength and water absorption for 20-Ba50Ss30 and 20-Ba70Wb10 were over
and below 15% respectively that are K.S. standards of manufactured waste ash brick. The results of tests for the heavy metals leaching in the all manufactured waste ash bricks are also passed to the wastes management regulations. The cost analysis of 20-Ba50Ss30 is evaluated. The manufacturing cost is evaluated 34.3 won/brick with 8 hours and 20tons of raw material per day. Incinerators with problems in bottom ash disposal can therefore derive significant benefits from the application of waste ash brick production.
Possible Health Risk Over Talc
Park, Dong-Uk ;
Korean Journal of Environmental Health Sciences, volume 35, issue 3, 2009, Pages 235~238
DOI : 10.5668/JEHS.2009.35.3.235
In Korea, talc that has been widely used for a lot of consumer products as well as industrial usage until recently was found to be contaminated with asbestos. It becomes a major social issue. Critical health risk about both talc and talc contaminated with asbestos was summarized through literature review. It has been confirmed that talc can pose ovarian cancer when talc powder is used in the genital area. International Agency for Research on Cancer (IARC) already concluded that the perineal use of cosmetic talc can cause possibly carcinogenic to humane(Group 2B), although there was study reporting the lack of a consistent an established correlation between perineal dusting frequency and ovarian tissue talc concentrations and the lack of a consistent dose-response relationship with ovarian cancer risk. The association between talc exposure and ovarian cancer is as strong as in recent studies. The epidemiological studies to date provided inadequate evidence for the carcinogenicity of either inhaled or ingested talc that does not contain asbestos or asbestosiform fibers. Future studies should focus on seeking evidence in talc-exposed populations, collecting reliable information on age at initial used of body powder, exposure assessments related to talc use and dose response relationship in order to identify possible risk of talc ingested or inhaled.