• 한국환경보건학회지
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• 제32권4호
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• pp.249-253
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• 2006

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 $Cr^{6+}$ 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.

• Environmental Analysis Health and Toxicology
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• 제17권4호
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• pp.315-324
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• 2002

Risk communication can be defined as the exchange of information about the nature, magnitude, significance, acceptability, and management of risk. The effect of risk communication on the perception and knowledge towards risk of environmental pollutants and it's related factors were investigated in this study. To investigate perception and knowledge of students and teachers towards risk of environmental pollutants, we conducted the survey using self-administrated questionnaire. The subjects were 574 for the first survey and 465 for the seconds survey from May to June, 2000. The main methods of transmission used in this study- through video tape, visual materials, question and answer, and participation in measuring pollutants - were not a one - way street. But an interactive process where information and opinions were exchanged among individuals, groups, and institutions. Environmental pollutants measured with participation of study subjects was Radon in the class room. The concentration of Radon was measured using E -PERM Device by installing it at each site for about 5 days. Subjects showed much interest in environmental pollution. Also, more than 98％ of total subjects were perceived as Korea is seriously contaminated at present. By risk communication activity, risk perception of all subjects about Radon was increased, on the other hand, risk perception of Dioxin was decreased except for elementary student. Moreover, knowledge of all subjects about environmental risk was significantly increased (p =0.0001) and effort of reducing environmental pollution was more increased (p<0.05). There is need to further develop, refine, and integrate these approaches environmental risk communication study, there is an even more pressing need to accelerate the diffusion of environmental risk communication practice into government and organizations.

• 동굴
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• 제85호
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• pp.15-17
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• 2008

This paper is attempted to review a cave restoration and preservation plan against environmental destruction and pollution as a preliminary survey for preservation of cave environment. Consequently, it's important to throw an indirect light rather than direct light on cave formations, keeping distance of 2m at least. The already existing moss should be removed using wet cloth or sponge as soon as possible. If it's washed off, be careful not to splash it or water on nearby subjects. Based on an automatic switch-off system, light will automatically turn off when no one is left in the cave. It's also recommended to dualize the cave passage and partially close the cave by taking turns to give a time to recover.

• 한국환경보건학회지
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• 제7권2호
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• pp.97-105
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• 1981

Water Pollution of Gwangju Stream was examined for four months from 22 March 1981 to 7 June, 1981. For checking the water pollution, 6 sampling positions were selected 5 from main stream. We assumed that the water pollution of Gwangju stream was due to the organic materials, which came from the domestic sewage. The apparatus for this test were pH meter (Orion model 301), Dissolved Oxygen & Temperature meter(Delta model 1010). The results we obtained are as follows: 1. The average range for mid-stream(sp. 3, 4) was 3. 10~2.73ppm of Dissolved Oxygen(DO), 80.23~102.95ppm of Biochemical Oxygen Demand (BOD), 195. 10~165.90ppm of Suspended Solid (SS), 6.6~6.7 of pH. 2. The plankton identification in this survey period showed Cyanophyceae is 4 genera 5 species, Bacillariophycea 11 genera 14 species, Chlorophyceae 8 genera 15 species and Zooplankton 6 genera 7 species: total 29 genera 41 species. 3. To appear dominant plankton in polluted water, there were Paramecium, Euglena and Oscillatoria. 4. The results of biological water analysis were as follows: st. 1 was B-mesosaprobic to oligosaprobic, but st. 4 and st. 5 at stream in the midtown area seemed to be polysaprobic.

• 환경위생공학
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• 제24권1호
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• pp.1-12
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• 2009

The various environmental problems that we face on today are basically about environmental quality. Since early 1960s affluent material was produced because of remarkable economic growth by many cooperations. However, for the lack of environmental policy, environmental pollutions has been serious. The central government should transfer the producing and consuming structure to environmental affinity through the regulations for developing Korea as a model of environmental nation which takes an active part in global environmental programme and in which the environment and economy are well harmonized. Moreover, the central government should take the lead in prevention of environmental pollution through the direct policies such as strengthening the discharge limit or setting up environmental basic institutions by securing budget for conserving environment. This thesis emphasize on the public institution among many environmental basic institutions for environmental anti-pollution project. It will find the problems with running those institutions, and will suggest the preview of improvement. Also, it is necessary to investigate of variation trend for inflow and pollutant loading to environmental infrastructure as increased of the diffusion rate as established and maintenance of sewer system. The purpose of this study is to investigate for inflow and pollutant loading to environmental infrastructure, and also to provide the method of efficiently maintenance and management. The results obtained were summarized as follows; 1. Survey of actual condition on operation and management of environmental infrastructure was evaluated the propriety of treatment process and problem of plant management. 2. Analysis of pollutant loading contribution for river system of environmental infrastructure with data analysis of water quality measuring network. 3. To investigate on case study for efficiently maintenance and management of environmental infrastructure. The result on this study was provide the method of efficiently maintenance and management with survey for establish and repair of sewer system and survey of actual condition on operation and management of environmental infrastructure in the water area of discharge to Geum River System. Application as guideline for establish and management of environmental infrastructure, and management of Geum River System. Also, application for preliminary data for fulfill-assess of total effluent regulation of water pollution.

• 유기물자원화
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• 제5권1호
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• pp.71-85
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• 1997

현재 우리나라에서 휴 폐광된 광산수는 약 500여개가 넘는 것으로 추정되고 있다. 휴 폐광된 광산은 경관의 저해 및 분진발생, 중금속에 의한 토양, 지하수 및 하천오염, 산성광산 배수의 생선, 지반붕괴 등 안전사고의 위험 등의 환경문제를 안고 있다. 국내에서 조사된 일부 휴 폐광된 금속광산의 오염현황을 보면 폐석 방치, 침출수, 갱내수의 유출, 인근 하천 및 토양의 중금속 오염, 시설물의 붕괴위험을 안고 있는 폐광산이 상당히 발견되고 있다. 휴 폐광된 광산의 관리대책으로서는 법규를 정비하여 토양환경보전법에 광산지역의 토양오염기준 복원기준 등이 설정되어야 한다. 또한 광산폐수, 폐기물을 적절히 처리해야 하며 지반침하대책 및 폐광의 지하공간 활용 등에 관한 연구가 진행되어야한다. 이러한 대책을 추진하기 위해서는 무엇보다도 먼저 휴 폐광에 대한 조사가 선행되어야 하며 오염복원순위의 설정, 재원 및 전문인력의 확충이 필요하다.

• 한국항만경제학회지
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• 제23권1호
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• pp.95-113
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• 2007

최근 들어 항만은 국가 및 지역경제의 중심지로 역할하고 있는 동시에 연안 도시권의 주요 환경오염원이라는 인식이 점차 확대됨에 따라 국제해사기구를 비롯한 국제기구 및 주요 선진국에서는 항만에서 발생하는 환경오염을 줄이기 위해 다양한 규제조치들을 도입하고 있다. 그럼에도 불구하고 지금까지 정부의 환경오염 방지 노력은 주로 육상에서 발생하는 오염원에 대한 규제 일변도로 진행되어 옴에 따라 항만에서 발생하는 환경오염에 대한 연구는 상대적으로 크게 부족한 상황이다. 이에 본 연구는 항만 환경오염 규제의 필요성, 항만 환경오염에 관한 국내외 문헌조사, 세계 주요 항만의 환경오염 실태, 그리고 각국의 항만 환경오염 저감방안 등을 고찰함으로써 국내 항만에 대한 시사점을 도출하는데 그 목적이 있다. 연구결과, 선박에서 발생하는 환경오염을 줄이기 위해서는 정박 중인 선박에 대해 육상에서 전력을 공급하는 방안이 효과적이며, 하역장비의 경우 노후장비는 신형으로 대체하는 한편 청정연료 사용 및 배출가스 저감장치 등을 설치하는 방안이 필요한 것으로 나타났다. 또한 트레일러 및 기차의 경우 공회전 제한 및 차량 현대화를 위한 다양한 인센티브 제도의 도입이 필요하다고 사료된다.

• 환경위생공학
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• 제23권4호
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• pp.65-71
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• 2008

To drive efficiently total water pollution load management, needs to calculate the exact load emissions, pollution load allocation and implementation evaluation in each unit area of watershed and accurate and regular flow of data. For these reasons, the Nakdong River TMDL Research Center has produced directly or indirectly in the average interval of eight days (30 times or more / year) 41 points for unit area of the total water pollution load management and 8-point of municipal requirement for a total of 49 branches as a flow data in 2004 from August. This acquired the survey flow is evidence of trends and changes each point in the Nakdong River based on time, such as 10 years based on average design flow available to the foundation of the summit as the major water policy is to be utilized. This study was performed on actual discharge measuring data and introduced performance results each drainage basin of Nakdong River from 2004 to 2008 over the total of past five years.

• 한국환경보건학회지
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• 제36권2호
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• pp.82-94
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• 2010

This study was undertaken in an attempt to provide scientific grounds in explaining the causes of environmental and respiratory diseases resulting from air pollutants in Gyeongju and its neighboring areas. In relation to heavy metals, lead (Pb) was $0.0135{\sim}0.1744\;{\mu}g/m^3$ and high in order of Pohang, Ulsan, and Gyeongju while nickel (Ni) was $0.0023{\sim}0.0115\;{\mu}g/m^3$. The concentrations of heavy metals in the investigated areas did not exceed the environmental standards or Guideline Value of Korea or other countries. However, it is considered necessary to apply intensive control to some heavy metals including cadmium (Cd) that show a relatively high level of hazard. Based on the responses to the survey, measured personal interest in environmental pollution and the basic knowledge of the causes of the respiratory diseases was higher in those with a family history of allergic reactions to metals and bronchial asthma. The incidence of allergic disease was higher in those who are currently in poor health state. In addition, the general knowledge of environmental pollutants was higher in those with higher educational level and those with a higher interest in environmental pollution. Personal interest in environmental pollution was higher in those with higher basic knowledge of environmental pollutants. Therefore, it is necessary to increase the awareness through better education and campaigns on environmental pollution.

• 한국물환경학회지
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• 제39권4호
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• pp.316-328
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• 2023

In this study, the characteristics of nonpoint pollutant outflow and contribution rate of pollution in Songya-stream mainstream and tributaries were analyzed. Further, water pollution management and improvement measures for pollution-oriented rivers were proposed. An on-site investigation was conducted to determine the inflow of major pollutants into the basin, and it was found that pollutants generated from agricultural land and livestock facilities flowed into the river, resulting in a high concentration of turbid water. Based on the analysis results of the pollution load data calculated through actual measurement monitoring (flow and water quality) and the occurrence and emission load data calculated using the national pollution source survey data, the S3 and S6 were selected as the concerned pollution tributaries in the Songya-stream basin. Results of cluster analysis using Pearson correlation coefficient evaluation and Density based spatial clustering of applications with noise (DBSCAN) technique showed that the S3 and S6 were most consistent with the C2 cluster (a cluster of Songya-stream mainstream owned area) corresponding to the mainstream of Songya-stream. The analysis results of the major pollutants in the concerned pollution tributaries showed that livestock and land pollutants were the major pollutants. Consequently, optimal management techniques such as fertilizer management, water gate management in paddy, vegetated filter strip and livestock manure public treatment were proposed to reduce livestock and land pollutants.