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한국환경보건학회(구 한국환경위생학회)> 한국환경보건학회지(구 한국환경위생학회지)

한국환경보건학회지(구 한국환경위생학회지)

KOREAN JOURNAL OF ENVIRONMENTAL HEALTH

  • : 한국환경보건학회(구 한국환경위생학회)
  • : 공학분야  >  환경공학
  • : KCI등재
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  • : 연속간행물
  • : 격월
  • : 1738-4087
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수록정보
수록범위 : 1권1호(1974)~38권2호(2012) |수록논문 수 : 1,445
한국환경보건학회지(구 한국환경위생학회지)
38권2호(2012년 04월) 수록논문
최근 권호 논문
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1미생물 연료전지의 원리 및 환경보건 분야로의 응용

저자 : 한선기 ( Sun Kee Han )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 83-94 (12 pages)

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The research on microbial fuel cells (MFCs) needs various knowledge of different fields such as electrochemistry, microbiology, environmental engineering, and material engineering, Although electrochemically active bacteria are very diverse, the performance of MFCs is affected primarily by the structure of the reactor system, Thus, the development in the system architecture is critical to lower internal resistance and increase power generation for commercialization. This paper summarizes the principles of MFCs and demonstrates the infinite potential of MFCs in various applications including wastewater treatment, biosensors, biohydrogen production, remote power sources, implantable medical devices, etc.

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Objectives: The goal of this study was to investigate the relationships between proximity to an industrial complex and blood lead levels and urinary cadmium levels. Methods: We conducted a questionnaire survey and analyzed blood lead and urinary cadmium levels using Atomic Absorption Spectrometry (AAs). Data was analyzed using logistic regression analysis. All statistical analyses were conducted with SAS software version 9.2. The distance between the residence and an industrial complex was calculated through a Geographical Information System (GIS). Results: A total of 967 residents living near a large petrochemical complex in Ulsan participated, The geometric mean levels of blood lead and urinary cadmium were 1.70ug/dl (male: 1.77ug/dl, female: 1.67ug/dl), and 0.72ug/gcreatinine (male: 0.49ug/g cr. female: 0.89ug/g cr.), respectively. Blood lead and urinary cadmium levels both increased with age and were higher among smokers compared to never smokers. Both significantly showed a decreasing trend with rising income. Results from multiple logistic regression analysis showed that urinary cadmium levels for subjects aged less than 20 years old were negatively associated with distance from the industrial area to the residence. The results, however, indicated that the blood lead levels were positively associated with the distance. Conclusions: The results of this study support that proximity to an industrial complex is related to urinary cadmium values for children. A positive finding with blood lead can be explained by the ambiguity of lead exposure sources in the general environment.

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3한국인의 혈 중 PFOA와 PFOS 농도와 노출요인

저자 : 서춘희 ( Chun Hui Suh ) , 이채관 ( Chae Kwan Lee ) , 이소룡 ( So Ryong Lee ) , 박미희 ( Mi Hee Park ) , 이종태 ( Jong Tae Lee ) , 손병철 ( Byung Chul Son ) , 김정호 ( Jeong Ho Kim ) , 김건형 ( Kun Hyung Kim )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 105-114 (10 pages)

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Objectives: This study aimed to assess the concentration of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonate (PFOS) in blood and factors controlling their exposure among Koreans. Methods: Study subjects were selected to include 718 members of the general population residing in five metropolitan cities and the Gangwon Province area from August 2008 to January 2009. A questionnaire was administered to investigate lifestyle, socio-demographic characteristics, and other related factors. Blood samples were collected and extracted using solid-phase extraction and anion-exchange methods, and quantified by highperformance liquid chromatograph (HPLC, Agilent 1200 Series) coupled with a Triple Quad LC-MS/MS system (Agilent 6410). Results: Geometric mean concentrations of PFOA and PFOS in the blood were measured as 1.82 and 6.06ng/ ml, respectively. Mean PFOA and PFOS concentrations generally increased with age in both genders. Blood PFOA concentration was significantly different according to such variables as age, family income, residential district, and province. Blood PFOS concentration was significantly different by such variables as gender, age, lifestyle factors such as regular exercise, alcohol consumption, and smoking status. Also, family income, hazardous facilities, job classification, and province contributed significantly to differences in blood PFOS concentration levels. Conclusions: Blood PFOA and PFOS concentrations in Koreans were similar with those found in Japan, the USA, and Germany, but less than those in Australia. PFOA and PFOS exposure seems to be affected by a variety of factors in Korea. Therefore, investigation is required for each factor to assess the relative contribution of different variables.

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4휴게음식점 주방의 환경위생상태에 관한 조사연구 -계절별 변화를 중심으로-

저자 : 김종규 ( Jong Gyu Kim ) , 박정영 ( Jeong Yeong Park ) , 김중순 ( Joong Soon Kim )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 118-130 (13 pages)

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Objectives: This study was undertaken to assess the sanitary conditions in the kitchens of food court/cafeterias and determine seasonal variations. Methods: We measured environmental factors (air temperature, relative humidity, illumination intensity, noise level), and dropping airborne microbes (bacteria and fungi) in the kitchens of eight food court/cafeterias in four seasons (January, April, July, and October). Air temperature and relative humidity were measured with in/out thermo-hygrometers at 1.2-1.5 m above floor level. Illuminance measurement was performed through the multiple point method of Korean Standards (KS). Noise level was measured by the standard methods for the examination of environmental pollution (noise and vibration) of Korea. The estimation of dropping airborne bacteria and fungi was performed through use of Koch`s method. Results: The highest kitchen air temperature was in July, and the lowest in January. The average temperature surpassed 21oC throughout the seasons, suggesting a higher temperature than required for the safe handling of food. Humidity in all the kitchens was measured in the range of 50-60%. Half of the kitchens showed illumination intensities below 300Lux in April. It was found that the sound pressure level of noise in almost all of the kitchens was higher than 85 dB (A). The highest levels of dropping airborne bacteria and fungi were noted in July. The numbers of airborne bacteria were higher than those of fungi. The levels of dropping airborne bacteria and fungi were affected by air temperature, relative humidity, season, and place. Conclusions: This study indicates that the kitchen environments were unqualified to supply safe food. The hygiene level of the kitchens should be improved.

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5유동흐름 전류계를 이용한 정수장 고탁도 유입수 응집 제어 방법에 대한 연구

저자 : 남승우 ( Seung Woo Nam ) , 조병일 ( Byung Ii Jo ) , 김원경 ( Won Kyong Kim ) , 조경덕 ( Kyung Duk Zoh )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 128-137 (10 pages)

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Objectives: This study was aimed at determining the optimum coagulation dosage in a high turbid kaolin water sample using streaming current detection (SCD) as an alternative to the jar test. Methods: SCD is able to optimize coagulant dosing by titration of negatively charged particles. Kaolin particles were used to mimic highly turbid water ranging from 50 to 600 NTU, and polyaluminum chloride (PAC, 17%) was applied as a titrant and coagulant. The coagulation consisted of rapid stirring (5 min at 140 rpm), reduced stirring (20 min at 70 rpm), and settling (60 min). To confirm the coagulation effect, a jar test was also compared with the SCD titration results. Results: SCD titration of kaolin water samples showed that the dose of PAC increased as the pH rose. However, supernatant turbidity less than 1 NTU after coagulation was not achieved for high turbid water by SCD titration. Instead, a conversion factor was used to calculate the optimum PAC dosage for high turbid water by correlating a jar test result with that from an SCD titration. Using this approach, we were able to successfully achieve less than 1 NTU in treated water. Conclusions: For high turbid water influent in a water treatment plant, particularly during summer, the application of SCD control by applying a conversion factor can be more useful than a jar test due to the rapid calculation of coagulation dosage. Also, the interpolation of converted PAC dose could successfully achieve turbidity in the treated water of less than 1 NTU. This result indicates that an SCD system can be effectively used in a water treatment plant even for high turbid water during the rainy season.

KCI등재

6채도측정시스템을 이용한 암모니아성 질소의 정량방법

저자 : 이형춘 ( Hyeong Choon Lee )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 136-143 (8 pages)

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Objectives: The objective of this study was to investigate whether the ammonia nitrogen concentration of aqueous samples such as drinking water can be determined by measuring the saturation of the samples colored by indophenol method. Methods: A color saturation measurement system was constructed by connecting a notebook computer to an image acquisition device composed of a PC camera and a light source, and was then used to measure the saturation of samples colored by blue indophenol complex. Results: Between two available light sources, a fluorescent lamp was selected due to its demonstrating better linearity between color saturation and ammonia nitrogen concentration. Prediction by quadratic regression was more accurate than by linear regression, and prediction by quadratic regression in the concentration range of 0.1-1.0 mg/l was more accurate than in the concentration range of 0.0-1.0 mg/l. Regression-based predictions over 0.25 mg/l, 0.55 mg/l and 0.75 mg/l concentrations were implemented both by spectrophotometric method and by measuring color saturation. In the case of 0.25 mg/l, the predicted concentration by spectrophotometric method was 0.256±0.0076 mg/l and the predicted concentration by measuring color saturation was 0.246±0.0086 mg/l (p=0.051). In the case of 0.55 mg/l, they were 0.561±0.0068 mg/l and 0.564±0.0166 mg/l (p=0.660). In the case of 0.75 mg/l, they were 0.755±0.0139 mg/l and 0.762±0.0088 mg/l (p=0.215). Conclusions: There were no statistically significant differences (p>0.05) between the data from the two methods in all three of the concentrations. Therefore, the color saturation measurement method proposed in this paper may be considered applicable for determining the ammonia nitrogen concentration of aqueous samples such as drinking water.

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7가축 분변중의 항생제 내성균주의 분포에 관한 연구

저자 : 권혁구 ( Hyuk Ku Kwon ) , 이장훈 ( Jang Hoon Lee ) , 김종규 ( Jong Geu Kim )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 142-147 (6 pages)

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Objectives: To estimate the multi-antibiotic resistant bacterial contaminant load discharged from livestock farms, we randomly selected livestock farms specializing in cattle, swine, and fowl and collected bacterial strains from domesticated animal feces and compost samples. Problems with resistance to antibiotics are becoming worldwide issues, and as the consumption of antibiotics appears to be excessive in Korea as well, the emergence of antibiotic resistant bacteria shows the possibility to cause potentially serious social problems. Methods: To monitor multi-antibiotic resistant bacterial constituents, aerobic bacteria and Escherichia coli were isolated from domesticated animal feces and compost. Antibiotic resistance testing was performed by the disc diffusion method using 13 different antibiotics. Results: Examining the degree of sensitivity to antibiotics of the aerobic bacteria originating from domesticated animal feces, fowl feces showed the highest distribution rate (35.5%), followed by swine feces compost (23.1%), swine feces (18.2%), cattle feces (14.9%), and cattle feces compost (8.2%). Antibiotic resistance tests of aerobic bacteria and E. coli originating from domestic animals feces resulted in 83.6% and 73.5% of each strain showing resistance to more than one antibiotic, respectively. Conclusions: These results suggest that increasing multi-antibiotic resistant bacteria in the environment has a close relation to the reckless use of antibiotics in livestock.

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8유기성 폐기물 자원화 시설에서 발생되는 부유 세균의 분포 특성

저자 : 김기연 ( Ki Youn Kim ) , 고한종 ( Han Jong Ko ) , 김대근 ( Dae Keun Kim )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 151-159 (9 pages)

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Objectives: Bioaerosols released by treating organic-waste resources cause a variety of environmental and hygiene problems. The objective of this study was to investigate the distribution characteristics of the airborne bacteria emitted from a pig manure composting plant, a principal site for organic-waste resource facilities. Methods: Three types of pig manure composting plant were selected based on fermentation mode: screw type, rotary type and natural-dry type. Each site was visited and investigated on a monthly basis between September 2009 and August 2010. A total of 36 air samplings were obtained from the pig manure composting plants. The air sampling equipment was a six-stage cascade impactor. Quantification and qualification of airborne bacteria in the air samples was performed by agar culture method and identification technique, respectively, Results: The mean concentrations of airborne bacteria in pig manure composting plant were 7,032 (±1,496) CFU m-3 for screw type, 3,309 (±1,320) CFU m-3 for rotary type, and 5,580 (±1,106) CFU m-3 for natural dry type. The screw type pig manure composting plant showed the highest concentration of airborne bacteria, followed by the natural dry type and the rotary type. The ratio of respirable to total airborne bacteria was approximately 40-60%. The predominant genera of airborne bacteria identified were Micrococcus spp., Staphylococcus spp. and Escherichia spp. Conclusion: Monthly levels of airborne bacteria were highest in August and lowest in November regardless of fermentation mode. There was no significant correlation relationship between airborne bacteria and environmental factors such as temperature, relative humidity and particulate matters in pig manure composting plants.

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9유전체 장벽 방전 플라즈마 방전수의 특성과 미생물 소독에 관한 연구

저자 : 김동석 ( Dong Seog Kim ) , 박영식 ( Young Seek Park )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 159-166 (8 pages)

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Objectives: This experiment was carried out to elucidate the effect of discharged water on the disinfection of Phytophthora capsici and evaluate the water characteristics. Methods: The dielectric barrier discharges (DBD) plasma reactor system used in this study consisted of a plasma component [discharge, ground electrode and quartz dielectric tube], high voltage source, and air supply. The effects of water characteristics such as pH, ORP and conductivity and the disinfection effect of discharged water were investigated. Results: Experimental results showed that in the process of discharge, the pH decreased, whereas ORP and electric conductivity increased. When the discharge time was 30 min, Phytophthora capsici of 2.94log was disinfected within 300 seconds. Disinfection performance of stored discharged water was maintained for three days; however the disinfection effect vanished after five days. When Phytophthora capsici was injected into the discharged water, the disinfection effect decreased after two days. Conclusions: It is considered that the main disinfection parameters of the discharged water were chemically active species such as H2O2 and O3 and high ORP.

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10가습기살균제 피해사건과 교훈

저자 : 최예용 ( Ye Yong Choi ) , 임흥규 ( Heung Kyu Lim ) , 임신예 ( Sin Ye Lim ) , 백도명 ( Do Myung Paek )

발행기관 : 한국환경보건학회(구 한국환경위생학회) 간행물 : 한국환경보건학회지(구 한국환경위생학회지) 38권 2호 발행 연도 : 2012 페이지 : pp. 166-172 (7 pages)

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Introduction: After 17 years since the first production of humidifier disinfectants in Korea, Korea Centers for Disease Control and Prevention (KCDC) announced that the odds ratio of lung injury related with humidifier disinfectant usage was 47.3 (95% confidence interval 6.0-369.7) according to a case-control study with 18 adult cases, including 8 pregnant women at a university hospital in Seoul. Results: From September 2011 to April 2012, one-hundred and seventy four victim cases have been reported to an environmental non-governmental group (NGO). We summarized timetable of humidifier disinfectants accidents, analyzed health outcomes (death, lung or lung and heart transplantation, pulmonary disease) of reported victims, and classified some information for humidifier disinfectants with health outcomes, and government action for this accident. Among the victims, number of death cases are 52 (30.0%), including 26 babies less than 3 years old. Sixty-nine victims come from twenty-seven family with 2 to 4 members per family. About twenty types of humidifier disinfectant products and about 600,000 product items a year have been sold. Fifty-two death cases used 7 different types of disinfectant products, including imported goods and some private brands of well-known supermarkets. KCDC confirmed inhalation toxicity of 6 products through an animal experimental test, and based on this observation recalled disinfectants containing PHMG (polyhexamethylene guanidine) and PGH (Oligo (2-(2-ethoxy) ethoxyethyl guanidinium chloride). Discussions: The use of these biocides involved highly fatal consequences among biologically vulnerable victims, such as pregnant women, several family member victims after semi-acute exposure. This is the first biocide disaster in Korea with non-specific targets, and unknown scale of victims, warranting concerns on use of biocides in the living environment. Conclusions: Special administrative agency for chemical safety and compensation act for environmental health victims are needed to prevent similar problems.

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1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

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(2006)홍길동41회 피인용

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