• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.969-973
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• 2007

There have been worldwide efforts to develop environmental-friendly transportation systems, which aim to solve the environmental issues such as pollution with the traffic congestion in downtown. For some developed countries, environmental indicators to estimate their environmental performances as well as eco-design technologies in the field of transportation have been already secured. In Korea, however, relatively fundamental studies which are insufficient to calculate quantitatively the environmental impacts have been performed. In this study, the life cycle assessment was introduced as one of methodologies to evaluate environmental performance and reduce environmental impacts of a bimodal tram system throughout its entire life cycle, including design, manufacture, operation and disuse steps.

• 한국건설관리학회논문집
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• 제15권3호
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• pp.58-65
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• 2014

본 연구는 국내에서 시행중인 친환경 건축물 인증제도 (G-SEED)에 따른 환경영향 저감 효과를 파악하는 것을 목적으로 한다. 이를 위하여, G-SEED 인증을 받은 초등학교 건축물과 인증을 받지 않은 일반 초등학교 건축물을 대상으로, 전과정평가 방법론을 이용하여 4가지 환경영향범주 (지구온난화, 오존층파괴, 산성화, 부영양화)에 따른 환경영향을 평가하고, 결과를 비교하였다. 건축물에 대한 환경영향평가는 자재생산, 자재운송, 시공, 운영단계를 포함하였으며, 운영기간은 40년으로 설정하였다. 두 건축물의 단위연면적당 환경영향을 비교한 결과, 일반 초등학교 건축물에 비해 친환경 인증 초등학교 건축물의 환경영향이 큰 것으로 나타났다. 예를 들어, 친환경 인증 초등학교 건축물의 지구온난화지수는 3.751 $t-CO_2eq./m^2$ 로 산출된 반면, 일반 초등학교 건축물의 지구온난화지수는 3.282 $t-CO_2eq./m^2$ 로 산출되어, 약 12.5% 크게 나타났다. 이는 G-SEED 인증이 4가지 측면에서의 환경영향의 저감을 보장하지 못한다는 것을 의미한다. 따라서 건축물로부터 발생하는 환경영향의 저감을 달성하기 위해서는 G-SEED에 대한 보완이 필요하다.

• 한국환경과학회지
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• 제22권12호
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• pp.1691-1698
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• 2013

The purpose of this article is analyzing the economic impacts of abnormal climate on fall chinese cabbage farmers and consumers in Korea, with employing the equilibrium displacement model. Our results show that there were little difference in gross farm income, even though there were significant yield reductions due to abnormal climate changes. However periodic occurrences of abnormal climates caused serious damage to consumption levels which had declined by 10.6~17.1 percent with higher prices by 15.3~24.6 percent than normal climate years since 1990.

• 환경영향평가
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• 제16권1호
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• pp.45-58
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• 2007

Despite the ubiquitous practice of environmental impact assessment around the world, social impact assessment has been alienated from assessment process from the beginning. Not until 1993 was 'Interorganizational Committee' established in the United States to prepare for 'Principles and Guidelines for Social Impact Assessment.' This study is an attempt to critically examine US 'Principles and Guidelines.' First, the study traces history of social impact assessment to reveal why the latter became "the orphan in the assessment process." Second, it critically reviews 'Principles and Guidelines' to find its merits and defects. For instance, a principle regarding environmental justice is perceived as necessary as society has become conscious of social justice and equity while putting too much emphasis on predictive traits of social impact assessments only fosters "checklist mentality." Third, the study reflects on 'Principles and Guidelines' in particular and social impact assessment in general in order to probe what is social impact assessment. To do so, it pays attention to scholars, who have criticized technocratic and procedural elements of 'Principles and Guidelines.' They show that social impact assessment is philosophically and methodologically teleological in that "fluid and contested meanings" between social impacts and the public are meaningful in itself. And simple procedural guarantee of the public involvement, they argue, is not enough to define social impacts. Lastly, from the critical analysis of 'Principles and Guideline,' the study looks for alternatives to improve how to assess social impacts in a Korean context.

• The Journal of Asian Finance, Economics and Business
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• 제5권3호
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• pp.31-41
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• 2018

The study examines economic and environmental impacts of mass tourism on regional tourism destinations, particularly the establishment of "Ten New Bali", in Indonesia. The sample is restricted to the period of time in which annual data is available and comparable among variables from 1980 to 2015 (36 observations). All of the time series data was collected and retrieved from the World Development Indicator database published by the World Bank. This study applies cointegrating regression analysis using the fully modified OLS, canonical cointegrating regression, and dynamic OLS. The results of the study suggest that 1) there is a long-run equilibrium relationship between tourism receipts, environmental degradation and economic growth in Indonesia, 2) tourism growth and agriculture land growth are positively related to an increase of total output in the short-run in Indonesia, and 3) arable land is significant at the 0.01 level, but forest rents and CO2 from transport are not significant in the short-run in Indonesia. The results confirm that arable land is negatively related to an increase of total output in Indonesia. That is, when tourism growth in the economy is getting realized it shows that the environmental degradation increases greatly in inverse in the model, eventually negative impacts to the environment.

• 한국환경과학회지
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• 제23권4호
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• pp.707-713
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• 2014

The purpose of this article is analyzing the economic impacts of abnormal climate on total revenue of red pepper in Korea, with employing the equilibrium displacement model. Our simulation results show the rate of yield change, price change, and total revenue change according to the climate change scenarios. In th case of by RCP 8.5 Scenario, red pepper production volume would be expected to decrease by 77.2% compared to 2012 while price increasing by 29.6%. As a result, total revenue to be returned to farmers would be reduced by 47.6% than it was in 2012. In contrast, total revenue would be expected to decline by 29.6% according to RCP 4.5 scenario.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2021년도 학술발표회
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• pp.139-139
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• 2021

Flooding events often result from extreme precipitations driven by various climate mechanisms, which are often disregarded in flood risk assessments. To bridge this gap, we propose a climate-mechanism-based flood frequency analysis that accommodates the direct linkage between the dominant climate processes and risk management decisions. Several statistical methods have been utilized in this approach including the Markov Chain analysis, K-nearest neighbor (KNN) resampling approach, and Z-score-based jittering method. After that, the impacts of climate change are associated with the modification of the transition matrix (TM) and the application of the quantile mapping approach. For this study, we have selected the Nam River Basin, South Korea, to consider the heterogeneous impacts of the two climate mechanisms, including the Tropical Cyclone (TC) and non-TCs. Based on our results, while both climate mechanisms have significant impacts on future flood extremes, TCs have been observed to bring more significant and immediate impacts on the flood extremes. The results in this study have proven that the proposed approach can lead to a new insights into future flooding management.

• 한국태양에너지학회 논문집
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• 제24권3호
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• pp.85-92
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• 2004

Environmental issues become one of today's central concerns due to draining natural resources and environmental pollution. Architecture is given a great deal of weight on the evoking environmental pollution. In this point of view, polluting factors in architectural planning and construction were predicted in advance and alternative plans were studied, In investigation of alternative plans, both environmental pollution and economical efficiency of various alternatives were considered. A office building was analyzed for energy consumption and construction environmental load by appling LCA. Applying LCA to a office building includes a total amount of materials and energy consumption, environmental impacts and economical efficiency evaluation. In present study, LCA applied to electrical part of a office building and economical efficiency evaluation was considered.

• 환경영향평가
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• 제13권6호
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• pp.295-305
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• 2004

After the Rio declaration on environment and development in 1992, developed countries are undertaking "environmentally sustainable transportation (EST)" projects. To meet the needs for EST, current transportation policies in Korea are rapidly reforming and one of its concerns is modernizing and upgrading railway freight system. Planning new railroad construction projects is increasing and subsequent environmental impact assessment (EIA) demands improvements, especially in both the EIA and decision making systems. In this paper, we discuss the present status of EIA for railroad construction projects, especially, by analyzing the EIA documents for the last six years. The EIA for railroad construction projects accounts for only 4.9% of total 918 project EIAs during 1998-2003, and the portion is gradually increasing. Major environmental concerns for EIA in railroad construction projects were geomorphological and ecological changes, protection of rare organisms, air pollution, water pollution, waste management, and noise, etc. We compared characteristics of environmental impacts of railroad construction with those of vehicle road construction, based on environmental and construction-planning indicators appeared in Environmental Impact Statements. Railroad construction usually requires longer tunnels and bridges for a given length than those for vehicle road construction. In addition, the amounts of geomorphological and ecological changes (road-cutting, embankment, devegetation, etc.) in railroad construction were generally less than 50% of those in vehicle road construction. To develop environmentally friendly railway systems, monitoring studies for environmental impacts of railroads such as habitat fragmentation and road kills, dispersal of alien plants, tunnelling effects on groundwater and vegetation, and noise impacts are highly recommended.

• 청정기술
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• 제28권3호
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• pp.203-209
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• 2022

본 연구에서는 태양광 폐모듈 해체과정에서 회수한 실리콘을 재활용하여 기계구조용 메커니컬 실을 제조하는 공정에 대해 전과정평가 방법에 의한 환경성평가를 수행하였다. 재활용 실리콘은 고순도 정제 후 탄소와 반응시켜 β-SiC 입자로 합성하고 압축 성형, 소결 및 열처리를 거쳐 제품을 생산한다. 현장 데이터 수집 및 환경부 LCI DB를 활용하여 각 단계별로 자원고갈, 산성화, 부영양화, 지구온난화, 오존층파괴, 광화학산화물 등 6개 영역의 환경영향을 산정하였다. 영향범주 별 환경영향은 지구온난화 45 kg CO₂, 광화학산화물 2.23 kg C₂H₄으로 크게 나타났으며 가중화 분석결과 광화학산화물, 자원고갈 및 지구온난화에 의한 환경영향이 98.7%로 높은 기여도를 차지하였다. 원료 실리콘과 탄소를 미분쇄 혼합하는 습식공정과 β-SiC 과립화 공정이 주요한 환경영향 유발요인이므로 건식공정으로 전환 및 대기 배출되는 용매는 회수하여 재이용하는 시스템으로 개선이 필요하다. 폐모듈 실리콘의 재활용에 의해 자원고갈의 영향은 53.9%, 지구온난화는 60.7% 감소하며 가중화 결과 전체적인 환경영향이 27% 감소하는 것으로 분석되어 폐모듈 재활용은 자원절약과 탄소중립 실현의 주요 수단이 될 수 있음을 LCA 분석으로 확인하였다.