• Journal of the Korean Association of Geographic Information Studies
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• v.18 no.1
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• pp.105-119
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• 2015

A case study to test the open API service functions of Geographic Information Open Platform(Vworld) for Environmental Impact Assessment was carried out for improving the function of Environmental Impact Assessment Geographic Information System(EIAGIS) which is one of Environmental Impact Assessment Supporting System(EIASS) used for current Environmental Impact Assessment. Followings are the summary of the study. First, utilization of EIAGIS was low since DB renewal was limited and the quality of 2D based topographic information was low. A new service which could respond to practitioners' needs could be developed to use a open API service of Vworld provided by the Ministry of Land, Infrastructure and Transport to make up those disadvantages. EIASS with Vworld could provide a consulting service from the beginning stage of business plan and make improvements of confidence as well as fast agreements since both consultation agencies and assessment agencies are using a same program during Environmental Impact Assessment process with customized information.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.499-499
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• 2022

급격한 도시화와 이로인한 불투수면의 증가는 유역의 물순환을 왜곡시키고 있다. 직접유출의 증가와 침투량 감소로 이어지며 이는 지하수 함유량의 감소와 하천건천화를 유발한다. 환경부는 더 이상의 물순환 왜곡을 막기위해 물환경보전법상의 물순환율을 정의하고 물순환 관리목표를 설정하였으며, 제3차 강우유출 비점오염원관리 종합대책에서 물순환 사업 추진을 위한 소권역 별 우선순위산정을 과제로써 제시하고 있다. 대표적인 물순환 사업은 저영향개발기법 설치이다. 저영향 개발기법은 토지 및 공간을 이용해야하기 때문에 설치비용이 높고 위치선정에 제약이 많으며 유지관리도 어렵다. 이에 물순환 사업에는 단순 불투수면 뿐만아니라 사회, 경제적 요소까지 고려하여야한다. 본 연구에서는 물순환 우선순위를 산정하기위해 불투수면뿐만 아니라 사회, 경제적 요소까지 고려한 종합적인 우선순위를 산정하였다. 유역 물순환 평가를 위해 PSR framework을 이용하였다. PSR framework는 OECD가 개발한 지속가능성 평가 개념이며, Pressure, State, Response 세 가지 요소로 구분해 평가하게된다. PSR framework의 기본 개념은 인간의 활동들이 환경에 압력 (P)를 주고, 이로 인해 자연의 질과 영향 (S)을 미치며, 이에대한 회복을 위해 인식과 행동을 통해 정책과 제도 등을 통해 반응 (R)한다는 것이다. 본 연구에서는 PSR framework의 평가요소 Pressure는 불투수면 및 강우, State는 물순환, 하수관거, 수질, 수생태계, Response는 협력, 인식, 재정, 토지로 구분하여 평가하였다. 최종적으로 불투수면적 감축 대상 소권역('30년 무대책 불투수면적률 25% 이상)소권역에 대하여 최종우선순위를 산정하였다.

• Journal of Environmental Impact Assessment
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• v.30 no.6
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• pp.413-424
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• 2021

Health impact assessment in the environmental impact assessment is conducted to determine whether to exceed the standard of each single substance and to establish appropriate reduction measures. In some development projects, although all substances in risk assessment meet the standard, exposure concentration is very close to it. However, considering the cumulative exposure of all substances, health effects are likely to occur considerably severer than those of individual substances, so it is necessary to prepare a concrete and improved methodology for integrating evaluation of emissions to identify the health effects actually exposed to receptors of living things. This study established the definition of cumulative risk assessment through overseas advanced cases and domestic and foreign literature reviews, and proposed a methodology for utilizing cumulative risk assessment considering health effects on multiple substances when developing industrial complexes. Applied by the proposed methodology, integrated indicators forfourtypes of hazardous heavy metals (Ni, Cr⁶⁺, Cd, As) emitted from industrial complexes were calculated, and applicability was tested with case of the industrial complex development projects conducted over the last decade (2011-2020).

• Journal of Environmental Policy
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• v.7 no.2
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• pp.91-104
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• 2008

In foreign countries, efforts are in progress to apply guidelines to minimize the loss of biodiversity within environmental assessment, yet those efforts have not been considered in Korea. If this continues, biodiversity in our nation will quickly diminish. Therefore, Korea needs to urgently prepare guidelines that minimize the loss of biodiversity. In this study 32 environmental impact assessment statements on express-highway construction projects were analyzed to evaluate potential problems with the current EIA system and to provide ideas on how to introduce a biodiversity/ecosystem item into the system. In the analyses of the 32 statements, few contents that deal with habitat/biodiversity were found and a lack of assessment of biodiversity issues was noticed in the EIA system in Korea. The system, therefore, should be improved to consider biodiversity issues in the survey, to predict impacts on biodiversity, and to establish corresponding mitigation measures.

• Journal of Climate Change Research
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• v.4 no.3
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• pp.245-254
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• 2013

Korea government promote renewable energy as the core of their energy matrix to break the dependence and reduce greenhouse effects. This study analyzes the economic assessment of Solid Refuse Fuel project in urban area, considering the marginal external costs of air pollution in this area. Assessment index defined as costs (i.e., construction cost, operation cost) and benefit (margin, external cost) data which is located in Sudokwon landfill site. The result indicates that cost-benefit analysis of SRF is calculated as 1.0. In addition, SRF project is very sensitive about electric power selling price, operating cost and labor cost according to inflation rates. This study shows that the sustainability of SRF project is required the government financial support like investment funds as well as policy support. Variability analysis of SRF economic assessment due to renewable energy can be used for making policies in various fields such as waste and public energy field.

• Journal of the Korean Institute of Landscape Architecture
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• v.46 no.1
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• pp.143-155
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• 2018

The Natural Landscape Rating System was introduced in the amendment of the NATURAL ENVIRONMENT CONSERVATION ACT in 2006. For landscape preservation, the system aims to consider the effects of development projects or plans implemented in a natural landscape on skylines, scenic resources, and view corridors. Currently, a lack of consistency in standards for determining Landscape Control Points (LCP) to assess landscape impact lowers the accuracy and reliability of the assessment results. As the perception of and the impact on a landscape varies, depending on the location of the LCP, it is necessary to establish a reasonable set of criteria to select viewpoints and avoid unreliability in the assessment due to unclear criteria. The intent of this study is to propose an objective and reasonable set of criteria for LCP selection to effectively measure the impact on the landscape from development projects that anticipate a change in the landscape and, ultimately, to suggest basic analysis methods to assess the landscape impact of development projects and to monitor the landscape in the future. Among the development projects affecting natural landscapes, as reported in the statement of the environmental impact assessment, cases of construction of a single building or other small-scale development projects were studied. Four spot development projects were analyzed in depth for their landscape impacts, in order to make recommendations for the LCP selection procedure, which aims to widen the scope of selection according to the direction of viewpoints from the target site. The existing results of analysis based on LCP have limitations because they failed to cover the viewshed of the target buildings when there are topographical changes in the surroundings. As a solution to this problem, a new viewshed analysis method has been proposed, with a focus on the development site and target buildings, rather than viewpoints, as used in past analysis.

• Journal of Environmental Impact Assessment
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• v.29 no.6
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• pp.441-452
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• 2020

The assessment of the river environment is widely applied as a method to establish the purpose and direction of river rehabilitation projects. This includes surveying and assessing the current state of the river environment and determining whether a previous river project was properly executed. The city of Seoul executed ecological river rehabilitation activities for the tributaries of the Han River from the 2000s following a masterplan to recover the physical shape and ecological functionality of damaged rivers. After the rehabilitation activities, the river environment had been changed substantially. In this study, physical properties, water quality properties, and ecological properties were assessed for 28 tributaries underthe control of the city of Seoul, and then those 3 properties were synthetically reassessed. From the result of the study on the physical properties, it was found that mostrivers had II-III grades. As for water quality properties, rivers had III-IV grades. The damaged rivers showed low grades of D-E based on the Aquatic Ecosystem Health evaluation. Accordingly, we concluded that all rivers of Seoul City have an unhealthy environment in terms of water quality and Aquatic Ecosystem Health, therefore it is regarded that long-term and systematic improvements are required.

• Journal of the Korean Society of Marine Environment & Safety
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• v.19 no.2
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• pp.111-118
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• 2013

This paper suggested the improvement of marine environmental impact assessment in eastern coast as analyzing consultation on the coastal area utilization for development of ports and fishing harbors for 3years in the east coast. The results of survey are only 3cases, 12cases and 16cases each for ocean currents, wave and sounding data. However, for development of ports and fishing harbors in eastern coast, ocean characteristics in eastern coast different than in the West Sea, South Sea is considered to marine environmental impact assessment. For development of ports and fishing harbors in east coast where the influences of ocean currents, wind-driven current and waves are dominant, the effect of the current should be considered to improve the reproducibility of tidal current. The wave should also be considered as an assessment criteria to obtain the validity of project such as harbor tranquility, functionality of breakwaters and stability. In addition, sediment inflow in river and exact water depth data of the ocean should be applied to numerical modeling and set wave-induced current to external force of sediment transport to predict the problems such as the harbor siltation and the coastal erosion considering ocean characteristics in the east coast.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.1149-1153
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• 2007

하천 개발 사업, 하천 취수량의 증가, 각종 오염원의 유입으로 하천수질 악화, 그리고 하천 구조 개선 등에 따른 수량과 수질, 서식 구조 측면에서 하천 생태계의 위협과 파괴가 이루어지고 있다. 최근에 보다 쾌적하고 자연에 가까운 하천 생태계의 서식 공간을 보전하고자 하는 노력이 증대하고 있다. 이 경우, 하천생태계 보전을 위해 무엇보다 중요한 것은 적정한 흐름 영역을 확보하여 생명이 살아 숨쉬는 하천상을 유지할 수 있어야 한다. 따라서 물 이용측면과 하천 수생 서식처 유지측면의 갈등을 해결할 수 있는 최적화된 유량설정 기법이 필요하다. 본 연구에서는 어류 서식환경을 평가하기 위해 가장 광범위하게 이용되고 있고 생태적 특성을 반영할 수 있는 점증 유량 방법론(IFIM: Instream Flow Incremental Methodology)의 물리적 서식처 모의 시스템(PHABSIM: Physical Habitat Simulation System)을 적용한다. 미시 서식 조건은 실측한 물리 자료를 이용하여 1차원 수리해석 프로그램을 적용하도록 한다. 대상 구간에 적합한 목표종을 설정하여 목표종에 적합한 서식처 적합도 지수를 산정한 후 물리 서식처 모의 시스템((PHABSIM: Physical HABitat SIMulation system)을 곡릉천 보(洑)구간에 적용하였다. 보로 인하여 주변의 물리서식처가 악화되어 있는 것을 확인할 수 있었다. 본 연구결과는 보에 의한 물리서식처의 영향을 분석함으로써, 보 철거 사업과 같은 하천환경 개선사업의 필요성을 제시하는 기본 자료로 활용될 수 있을 것으로 판단된다.

• Journal of Environmental Impact Assessment
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• v.28 no.5
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• pp.427-439
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• 2019

Natural environmental ecology ofthe environmental impact assessment(EIA)is very much lacking in quantitative evaluation. Thus, this study attempted to evaluate quantitative assessment for ecosystem service in the site of Eco-delta project in Busan. As a part of climate change adaptation, this study evaluated and compared with the value for carbon fixation and habitat quality using the InVEST model before and after development with three alternatives of land-use change. Carbon fixation showed 216,674.48 Mg of C (year 2000), and 203,474.25 Mg of C (year 2015)reducing about 6.1%, and in the future of year 2030 the value was dropped to 120,490.84 Mg of C which is 40% lower than year 2015. Alternative 3 of land use planning was the best in terms of carbon fixation showing 6,811.31 Mg of C. Habitat quality also changed from 0.57 (year 2000), 0.35 (year 2015), and 0.21 (year 2030) with continued degradation as development goes further. Alternative 3 also was the highest with 0.21(Alternative 1 : 0.20, Alternative 2 : 0.18). In conclusion,this study illustrated that quantitative method forland use change in the process of EIA can helpdecision making for stakeholders anddevelopers with serving the best scenario forlow impact of carbon. Also it can help better for land use plan, greenhouse gas and natural environmental assets in EIA. This study could be able to use in the environmental policy with numerical data of ecosystem and prediction. Supplemented with detailed analysis and accessibility of basic data, this method will make it possible for wide application in the ecosystem evaluation.