• 한방재활의학과학회지
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• 제28권2호
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• pp.37-45
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• 2018

Objectives This study was designed to investigate whether the Gagamtongsoon-San (GT) has an inhibitory effect and its mechanisms are associated with the iNOS and COX-2. Methods Cytotoxic activity of GT extract on RAW264.7 cells was evaluated by using 3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium bromide (MTT) solution. Inflammatory condition was induced by LPS. NO production was measured using Griess reagent system. The expressions of iNOS and COX-2 mRNA and protein were determined by realtime PCR. The concentrations of PGE2 were measured by an enzyme immunoassay (EIA). Results The GT does not impair the cell viability in tested concentration $500{\mu}g/ml$ or below. GT significantly reduced the NO production in a dose-dependent manner. GT $500{\mu}g/ml$ also suppressed LPS-induced mRNA expressions of iNOS and COX-2. GT $500{\mu}g/ml$ reduced the PGE2 secretion in LPS induced RAW264.7 cells. Conclusions These outcomes show that GT extract has an anti-inflammatory activities. And also this conclusion can be the data that supports the GT's anti-inflammatory effect objectively.

• 환경영향평가
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• 제21권1호
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• pp.63-69
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• 2012

Sediment has been increasingly acknowledged as a carrier in water system and an available contamination. For this reason, dredging of sediment in reservoir to remediate water quality and secure storage capacity is conducted annually. However, disposal of numerous dredged sediment is necessary as a secondary problem. Currently, in Korea, dredged sediment is classified as waste to be reclamated or recycled into sandy soil, however, they are still in trouble because of spacial and environmental problem. Therefore, rather than simple disposal or reuse into sandy soil, it is necessary to research on method to manage main cause of pollution and increase the value as a resource. In this study, we intend to develop a recycle technology for numerous dredged sediment produced by dredging in deteriorated reservoirs using solidificator (stabilizer). To achieve this, we will consider utilization of dredged sediment and evaluation of use possibility as natural recycle by analysis the characteristics of soil-solidificator mixture in terms of physicochemical properties and the mixing ratio between sediment and solidificator.

• 환경영향평가
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• 제19권2호
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• pp.197-204
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• 2010

새만금사업, 신행정수도(행정중심복합도시, 세종시), 한반도 대운하사업(4대강 살리기사업) 등과 같은 대형국책사업은 대통령 선거공약으로 제시되었다. 그러한 대형국책사업이 국가의 이익을 위해 꼭 필요한 것으로 제시되었다 하더라도, 그 결과는 좋은 의도와는 다르게 나타날 수도 있다. 대통령 선거후 환경정책기본법과 환경영향평가법에 따라 대형국책사업에 대한 사전환경성검토(전략환경평가)와 환경영향평가가 이뤄졌지만, 예상하지 못했던 정치적, 사회경제적, 환경적 갈등이 발생하였다. 이러한 개발 및 환경 갈등의 원인은 여러 측면에서 찾을 수 있겠지만, 사회경제적 항목을 중심으로 하는 사회영향평가의 미흡을 그 원인으로 제시하는 연구가 많다. 대규모 국책사업을 둘러싼 개발 및 환경 갈등을 해소하기 위해, 우리나라와 외국의 사회영향평가의 현황과 연구 동향을 고찰하고, 국책사업의 주요 쟁점의 분석을 통하여 사회영향평가의 중요성과 필요성을 강조하였다. 그리고 사회영향평가의 도입, 강화, 지침 마련에 대해 다음과 같이 제안하였다. 첫째, 현재의 사전환경성검토(전략환경평가)시에 사회적 통합, 경제적 측면(B/C분석, 비용, 고용 등), 법제적 측면, 한반도 통일이나 국가균형발전 등과 같은 사회경제적 항목을 평가항목에 추가함으로써 사회영향평가를 도입하고; 둘째, 환경영향평가 시에 공공시설, 교육, 교통, 문화재, 경제적 타당성, 고용, 토지이용을 현재의 사회경제평가항목에 추가시켜 사회영향평가를 보다 강화시키고; 셋째, 한국의 환경적, 정치적, 경제적, 사회적, 문화적 상황을 반영하여(사회영향평가의 원리와 지침(가칭))을 마련하도록 한다.

• 환경영향평가
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• 제22권4호
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• pp.369-379
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• 2013

Noise and vibration problems at the construction site, expansion of construction scale and frequency of urban construction is increased, has given the damage to local residents. Also, the result of civil complaint about noise and vibration that occurred in 2011 was 56,244; it is showing an increasing trend of more than 4% annually. In particular, the construction noise and vibration, the civil complaints of around construction site accounts for 64.6%(36,353), are harmful to the tranquility of living environment. As a result, the government has managed to strengthen the regulatory standard of construction noise (65dB(A), Day-time) from 2011. However, the regulatory standard of construction noise and vibration does not meet and also complaints related the construction noise and vibration not decreased. Because the management system can be applied to the construction site is insufficient and a shortage of manpower. In this study, investigated the status and problems of the regulatory standards related to construction noise and vibration, we propose an efficient management plan of construction noise and vibration.

• 한국해양환경ㆍ에너지학회지
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• 제14권4호
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• pp.239-248
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• 2011

본 연구는 각종 해역이용 개발로 인한 해양환경 및 생태계를 보전하고, 효율적으로 관리하기 위해 2008년부터 본격적으로 시행된 해역이용협의제도의 운용 현황과 실적을 분석하여 협의 유형 및 연안에서 이루어지는 개발사업의 특성을 파악하였다. 또한, 도입기를 지나 정착 발전단계에 접어든 해역이용협의 및 평가제도의 실효성을 확보하기 위해 운용상 나타난 문제점을 고려한 제도의 개선방안을 진단하였다. 2009년 및 2010년의 전체 해역이용협의 실적은 3,705건이며, 간이해역이용협의 87.0%, 일반해역이용협의 12.8%, 해역이용영향평가 0.2%로 나타났다. 일반해역이용협의의 행위유형은 공유수면매립 43.4%, 기타 23.4%, 해수 인 배수 17.5%, 준설 5.5%, 항만시설의 설치 4.6%, 어항시설의 설치 2.3% 순이었다. 환경영향평가서의 검토유형은 항만건설이 32.9%로 가장 많았으며, 그 다음으로 산업단지조성, 관광단지개발과 도로건설, 에너지개발 순으로 분석되었다. 해역이용협의가 증가하고, 개발유형 또한 다양화되고 대형화됨에 따라 제도의 실효성 및 홍보 강화, 협의기관 및 검토기관 등의 역량 강화, 그리고 해양환경영향평가의 신뢰성 제고 방안을 지속적으로 강구해야 할 것이다.

• 환경영향평가
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• 제20권6호
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• pp.891-905
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• 2011

Climate vulnerability index is usually defined as a function of the climate exposure, sensitivity, and adaptive capacity, which requires adequate selection of proxy variables of each variable. We selected and used 9 proxy variables related to climate exposure in the literature, and diagnosed the adequacy of them for application in Korean peninsula. The selected proxy variables are: four variables from temperature, three from precipitation, one from wind speed, and one from relative humidity. We collected climate data over both previous year (1981~2010) and future climate scenario (A1B scenario of IPCC SERES) for 2020, 2050, and 2100. We introduced the spatial and temporal diagnostic statistical parameters, and evaluated both spatial and time variabilities in the relative scale. Of 9 proxy variables, effective humidity indicated the most sensitive to climate change temporally with the biggest spatial variability, implying a good proxy variable in diagnostics of climate change vulnerability in Korea. The second most sensitive variable is the frequency of strong wind speed with a decreasing trend, suggesting that it should be used carefully or may not be of broad utility as a proxy variable in Korea. The A1B scenario of future climate in 2020, 2050 and 2100 matches well with the extension of linear trend of observed variables during 1981~2010, indicating that, except for strong wind speed, the selected proxy variables can be effectively used in calculating the vulnerability index for both past and future climate over Korea. Other local variabilities for the past and future climate in association with climate exposure variables are also discussed here.

• 환경영향평가
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• 제26권4호
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• pp.257-271
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• 2017

국내에서는 국토개발 목적으로 토양을 반입하고 잔토 및 사토 처리를 위해 토양을 반출하고 있으나, 토양오염에 대한 고려 없이 특정 부지로 토양이 반입되고 있는 실정이다. 이에 본 연구는 토양의 이동으로 인한 오염 확산을 방지하고 오염발생 부지에서의 정화책임을 명확하게 하기 위한 목적으로, 국내 반입토양 관리 현황을 살펴보고 국외 관련 제도를 분석하여 국내에서 토양 반입 부지의 관리체계를 효율적으로 운영하기 위한 방안을 고찰하였다. 본 연구에서는 반입되는 토양의 합리적인 이동 관리체계를 마련하기 위한 방안으로 자율적 규제, 의무적 규제, 단계적 규제를 제안하였다. 향후 국내에서 토양 반입부지에 대한 명확하고 합리적인 관리체계를 성립하기 위해서는 본 연구에서 제안한 것과 같이 현재 토양환경 보전법이 가지고 있는 법 제도적 한계점을 개선하여 토양 반입 부지에 대한 규제 및 지침을 빠른 시일 내에 보완해야 할 필요성이 있다.

• 환경영향평가
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• 제22권6호
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• pp.581-589
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• 2013

Generally, Sewage Treatment Plants(STPs) are complexes systems in which a range of physical, chemical and biological processes occur. However, their performance strongly depends on the know-how acquired by the field-engineer. Recently, in order to solve this situations, various operation and management technologies based on the Instrumentation, Control and Automation(ICA) have been developed. As a economies-environmental affect point of view, this study was for the performance evaluation and assessment of results from the Smart Operation System(SOS) in full-scale STP. The SOS in STP consisted of the process monitoring module, including real-time influent prediction and effluent simulation, and the Smart Air Control(SAC) module. According to the results from field test for 2 years, the results of economical evaluation, amount of benefits and cost saving by the SOS have shown to be much higher than that of traditional operation. Nevertheless, the removal load(kg/yr) of BOD 13.3 %, COD 28.2 %, TN 44.4 % and TP 20.8 % were increased, respectively. Remarkable improvement of removal load could be achieved after the SOS was adapted. It was concerned that the SOS offer a user friendly functionalities and cost saving needed by the field-engineers. In addition, it was expected that the results of this study would supply helpful information for design and cost saving for the SOS in full-scale STP.

• 환경영향평가
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• 제27권1호
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• pp.33-55
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• 2018

생물다양성 감소의 가장 주요한 원인으로 외래생물의 유입이 지적되고 있으며, 특히 침입외래종으로 인한 서식지 파괴, 경제적 손실, 인체 피해 등이 가속화되고 있다. 국내에 유입된 외래생물은 2167종으로 생태계위해성평가를 통해 위해성이 높은 꽃매미(Lycorma delicatula), 붉은불개미(Solenopsis invicta), 뉴트리아(Myocastor coypus), 갯줄풀(Spartina alterniflora) 등 21종이 생태계교란 생물로 지정되어 있다. 국내에 유입될 경우 생태계에 부정적인 영향을 줄 수 있는 위해우려종은 생태계위해성심사를 통해 127종이 지정되어 있다. 이처럼 외래생물을 목록화하여 유입을 사전에 예방하고, 유입된 외래생물에 대한 피해를 최소화하기 위해 생물다양성 보전 및 이용에 관한 법률이라는 국가차원의 관리제도가 마련되었으나, 위험도에 따른 체계적인 관리체계 구축이 부족한 실정이며, 위해성 예측시 평가기준 및 분류군별 생태적 특성을 반영한 위해성평가표가 개발되어야 할 것이다.

• 대한수의학회지
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• 제29권1호
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• pp.21-25
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• 1989

This experiment was carried out to determine the progesterone concentration of bovine plasma by liquid phase double antibody enzyme immunoassay. The optimum conditions of assay-system, enzyme conjugate and gelatin were invested. The sensitivity, recovery rate and reproducibility by this assay were also analyzed. The results obtained were as follows: 1. The suitable supplementation level of gelatin was 0.2%. As the gelatin level increased to 1%, coefficient variation of interassay was shown to be irregular. 2. The optimum dilution rate of enzyme conjugate was 30 times. Enzyme activity was greatly fluctuated depending on the minor condition of enzyme conjugate technique. Therefore, it was considered to be checked when determined. 3. The sensitivity of the assay was 12 pg/tube. 4. Recovery rate was decreased when the amount of sample was too little or too much, but the recovery rate was high as 97.8% when the amount of sample between 50 and $200{\mu}l$. 5. Mean intra-assay and inter-assay coefficient of variation was 4.5% and 5.9%, respectively. By using liquid phase double antibody enzyme immunoassay, progesterone in plasma can be detected, and also this assay system is applicable to study on physiological function of progesterone and to diagnosis of reproductive disorders.