• Title/Summary/Keyword: environmental indicators

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Performance Evaluation of Water Loss Management in Urban Areas Using Different Performance Indicators (여러 가지 지표를 이용한 전국도시의 물손실관리 수행능 비교평가)

  • Chung, Shin-Ho;Yu, Myong-Jin;Koo, Ja-Yong;Lee, Hwa-Kyoung
    • Journal of Korean Society of Environmental Engineers
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    • v.28 no.2
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    • pp.117-127
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    • 2006
  • Recently International Water Association(IWA) has proposed new performance indicators for water supply services and their successful applications are being reported continually. According to the various reports, the percentage indicators were suggested not to be used for performance comparison, especially where the targeted areas have great difference in consumption per service connection. But unfortunately in Korea the revenue water ratio, one of the percentage indicators is still being used to set up the goal of water-related administration and to compare the performances between systems. Therefore this study aimed to prove the inapplicability of the percentage indicators with nation-wide data and to suggest better performance indicators for more efficient water loss management. According to the result of the comparison of various performance indicators with conventional one, it is roved that percentage indicators ca not evaluate the performance efficiently where the local situations are significantly different. It is suggested that the better performance indicators such as real losses per service connection or ILI should be used to benchmark the performances of water suppliers on water loss management so thai the problems of water losses could be identified easily and recovered effectively.

Assessing Content Validity of Environmental Performance Indicators for Construction Sites (시공단계 환경성능평가를 위한 평가항목의 내용타당성 검토)

  • Kang, Goune;Lee, Sanggyu;Lee, Myungdo;Cho, Hunhee;Kang, Kyung-in
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.7-9
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    • 2013
  • An assessment tool's validity is crucial because its scores are used as basis of decision making. This study assessed the content validity of the indicators for environmental assessment of construction activities. Pool of candidate indicators were constituted from the literature review, and CVR(Content Validity Rate) approach was adopted to investigate the content validity. As a result, 14 indicators are effective and five of them are content valid and retained from the pool.

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The Development of Eco-village Planning Indicators for Sustainability (지속가능성 확보를 위한 생태마을 계획요소 개발)

  • Woo, Hye-Mi;Ban, Yong-Un;Han, Kyung-Min;Baek, Jong-In
    • Journal of Korean Society of Rural Planning
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    • v.18 no.2
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    • pp.1-11
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    • 2012
  • Eco-village has been regarded as an alternative to accomplish sustainable development for rural village. This study has intended to develop comprehensive planning indicators to establish an eco-village based on such aspects of sustainable development as economy, environment, and society. To reach this objective, this study has set up six goals as follows: 1) ecological production activities for agriculture, 2) resource circulation and energy independence in the economic domain; 3) building cultural and historical succession and community activation, and 4) living together with surrounding regions in social domain; and 5) maintaining environmental habitat, and 6) restoring natural ecosystem in environmental domain. Based on these goals, this study has developed the planning indicators to build an eco-village through case study, literature review, survey for suitability, and factor analysis. This study has found 17 strategies and 47 planning indicators in accordance with the six goals.

Resetting the Evaluation Indicators for School Garden Education Service

  • Hong, In-Kyoung;Yun, Hyung-Kwon;Jung, Young-Bin;Lee, Sang-Mi;Lee, Choon-soo
    • Journal of People, Plants, and Environment
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    • v.24 no.3
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    • pp.245-256
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    • 2021
  • Background and objective: The vitalization of urban agriculture has increased various forms of experience-based education using school gardens, which raised the importance of school gardens in terms of value as well as the need to develop an implementation system for education-based agricultural experience service using school gardens. Thus, we reset the evaluation indicators from the previous study to establish objective evaluation indicators that enable quantitative comparison of school garden education services. Methods: Analytic hierarchy process (AHP) and direct question (DQ) surveys were conducted on 20 experts from October 12 to 19, 2020 after establishing the purpose and subjects of evaluation, and then the weights were calculated using the Expert Choice 2010 program. Results: First, we analyzed the problems of the previous indicators by categorizing the performance indicators and comparing and verifying them with six requirements of valuation. Then, we added 'welfare values' and established sub-indicators accordingly. The importance of value indicator in AHP was in the order of education values (0.544), health values (0.182), welfare values (0.164), environmental values (0.062), and economic values (0.049). The importance of environmental and economic values was relatively low, less than 0.1. The importance of sub-indicators was highest in cultivating character (0.144), followed by enhancing ecological sensitivity (0.141) > promoting mental health (0.134) > cultivating agricultural literacy (0.120) > improving social skills (0.104). And mitigating climate change in environmental values was lowest (0.009). Increase in income was the lowest (0.036). This can be regarded as the expression of change to increase the educational effect based on collective life and the connotative meaning of 'school'. In the case of DQ, the AHP weight and order were the same, but the environmental and economic values were relatively low, and the result was different from AHP weight. For sub-indicators, the importance in DQ was highest in promoting mental health (0.136), followed by promoting physical health (0.085), ]cultivating character (0.082), social integration (0.072), and enhancing ecological sensitivity (0.071). After reviewing related experts, we came up with 5 evaluation indicators and 16 sub-indicators for school garden education service, which are objective evaluation indicators that enable quantitative comparison. Conclusion: In the future, we will validate the socioeconomic values of school garden education services and contribute to revitalizing school gardens by establishing policy alternatives for effective operation and management of school gardens.

State Indicator of Water Quality for Surface Water and Groundwater in Agriculture

  • Kim, Min-Kyeong;Jung, Goo-Bok;Ro, An-Sung;Choi, Seung-Chul;Choi, Won-Il;Kim, Eun-Jeong;Lee, Jong-Eun;Yun, Yeo-Uk;Kim, Kab-Cheol;Ko, Do-Young;Kim, Byeong-Ho;Kim, Hyeon-Ji;Park, Sang-Jo;Lee, Seong-Tae;Heo, Jae-Young;Yang, Sang-Ho;Kang, Seong-Soo
    • Korean Journal of Soil Science and Fertilizer
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    • v.48 no.5
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    • pp.509-514
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    • 2015
  • Indicators of environmental conditions qualitatively and quantitatively describe the state of the environment and natural resources, and the OECD (Organization for Economic Cooperation and Development) has initiated and suggested AEIs (Agri-Environmental Indicators) to assess trends over time of the effects of agriculture on the environment and the effectiveness and efficiency of agricultural and environmental policy measures since 1990's. This study aims to develop the state indicators of water quality for agricultural water, surface and groundwater, to evaluate the environmental impacts of agricultural activities and policies by qualifying the environmental levels of a nation. Status indicators were calculated according to the agricultural water quality standards of OECD and Korea, and their trends were analyzed over time. Particularly, nitrate ($NO_3{^-}$) status indicators of ground water in 2013 were significantly lower than the ones in 2000. Overall, the water quality indicators of surface water in 2013 were higher than the ones in 2012, except for pH and DO. The groundwater quality indicators in 2013 were lower than those of previous years. The optimal management indicators were calculated to assess agricultural surface water and groundwater quality. The findings of this study indicated that the state indicators could play a significant role to establish policies and procedures for managing and conserving water resources. This study also discussed water pollution caused by agricultural and industrial effluents.

Development and Application of Natural Ecosystem Value Assessment Model in Land Development (개발사업지구 내 자연생태계 가치평가모델 개발 및 적용)

  • Lee, Dong-Kun;Yi, Hyim-Yi;Kim, Eun-Young;Choi, Jaeyong
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.3
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    • pp.59-71
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    • 2009
  • The goals of this study were to development Natural Ecosystem Value Assessment Model, to suggest the practical applicability of the Natural Ecosystem value assessment for development areas, and to assess natural ecosystem quantitatively using GIS. The Model can evaluate Natural Ecosystem Value between before and after land developments. To select indicators for the model, we conducted the literature reviews. and six indicators and the standard of evaluation had been developed through the expert interviews and literature reviews. the relative importance of the evaluation index throught two times expert questionnaires was found out. the Natural Ecosystem Value Assessment Model has been established, The results demonstrate that although the suggested six indicators are arranged by priority, to maintain quantitative and qualitative the natural ecosystem value, all indicators are desirable to be maintained complementarily. The findings of this study suggest that the natural ecosystem value assessment model appears to be effective an assessment for damaged natural environment value and possible to assign a score value. Also, this model can be applied to research areas and has implications to help maintain the natural ecosystem in land development districts.

Establishment of Best Management Indicator for Sustainable Agricultural Water Quality using Delphi Survey Method

  • Kim, Min-Kyeong;Jung, Goo-Bok;Hong, Seong-Chang;Kim, Myung-Hyun;Choi, Soon-Kun;Kwon, Soon-Ik;So, Kyu-Ho
    • Korean Journal of Soil Science and Fertilizer
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    • v.48 no.5
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    • pp.379-383
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    • 2015
  • Indicators of environmental conditions describe the state of the environment and the quantity and quality of natural resources. This study deduced the evaluation items to assess each sub-indicator for agricultural water quality and conducted the surveying using the Delphi method based on agricultural water quality experts. Considering its importance, environmental, state, and management indicators showed that state indicator such as COD concentration for surface water and $NO_3-N$ concentration for groundwater was ranked as first and followed by amount of fertilizer. Its indicators were correlated with state and environmental indicators in surface water and groundwater. The best management indicators were calculated to assess the agricultural surface water and ground water quality. The indicator could be used in established policies for management and conservation of water resources.

Selection of Indicator and Establishment of System for a Functional Assessment of Green Space - Focused on Forest Green Space - (녹지의 기능적 평가를 위한 지표 선정 및 평가체계 구축 - 산림형 녹지를 중심으로 -)

  • Lee, Woo-Sung
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.15 no.5
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    • pp.31-48
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    • 2012
  • The purpose of this study is to select indicators by a methodical approach and to establish a functional assessment system as a basic study for planning and constructing green space of forest. The types of green space were divided into 6 classes based on theoretical reviews of literature and the functions of green space were restricted to 'nature-ecological function', 'environment-control function' and 'usage function'. As a result of the selection of indicators, 35 indicators were initially selected by theoretical review and these indicators were reduced to 29 through brainstorming. Also, these indicators were classified into three functions such as 12 indicators (nature-ecological function), 8 indicators (environment-control function), 6 indicators (usage function) by analysis of suitability. According to the result of selection of the optimum indicators using MCB (Multiple Comparisons with the Best treatment) analysis, the optimum indicators of 7, 5, and 4 respectively by each function were selected for forest green space. The results of AHP (Analytic Hierarchy Process) for the establishment of the assessment system in forest, the weight of nature-ecological function was evaluated highest at 0.558, while the weight of environment-control and usage function were calculated at each 0.277, 0.165. 'Naturality (0.189)', 'Carbon sink (0.235)', and 'Accessibility (0.354)' among indicators showed highest by each function. The weight of indicator and assessment system may be used as a valuable guideline in case of assessing synthetically green space within urban planning.

Population attributable fraction of indicators for musculoskeletal diseases: a cross-sectional study of fishers in Korea

  • Jaehoo Lee;Bohyun Sim;Bonggyun Ju;Chul Gab Lee;Ki-Soo Park;Mi-Ji Kim;Jeong Ho Kim;Kunhyung Kim;Hansoo Song
    • Annals of Occupational and Environmental Medicine
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    • v.34
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    • pp.23.1-23.14
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    • 2022
  • Background: The musculoskeletal disease (MSD) burden is an important health problem among Korean fishers. We aimed to investigate the indicators of the prevalence of MSD and contributions of significant indicators to MSD in Korean fishers. Methods: This cross-section study included 927 fishers (male, 371; female, 556) aged 40 to 79 years who were enrolled from 3 fishery safety and health centers. The outcome variable was one-year prevalence of MSD in 5 body parts (the neck, shoulder, hand, back, and knee). Independent variables were sex, age, educational attainment, household income, job classification, employment xlink:type, hazardous working environment (cold, heat, and noise), ergonomic risk by the 5 body parts, anxiety disorder, depression, hypertension, diabetes, and hyperlipidemia. The adjusted odds ratio of MSDs by the 5 body parts were calculated using multiple logistic regression analysis. We computed the population attributable fraction (PAF) for each indicators of MSDs using binary regression models. Results: The one-year prevalence of MSD in the neck, shoulder, hand, back, and knee was 7.8%, 17.8%, 7.8%, 27.2%, and 16.2% in males vs. 16.4%, 28.1%, 23.0%, 38.7%, and 30.0% in females, respectively. The ergonomic risk PAF according to the body parts ranged from 22.8%-59.6% in males and 22.8%-50.3% in female. Mental diseases showed a significant PAF for all body parts only among female (PAF 9.1%-21.4%). Cold exposure showed a significant PAF for the neck, shoulder, and hand MSD only among female (25.6%-26.8%). Age was not a significant indicator except for the knee MSD among female. Conclusions: Ergonomic risk contributed majorly as indicators of MSDs in both sexes of fishers. Mental disease and cold exposure were indicators of MSDs only among female fishers. This information may be important for determining priority risk groups for the prevention of work-related MSD among Korean fishers.

Evaluation Indicators for Creation and Management of Urban Forest (도시숲 조성 및 관리를 위한 도시숲 건전성 평가지표 선정)

  • Lee, Dongkun;Kim, Daehyun;Kim, Eunyoung;Jeong, Jicheol;Oh, Youngchool;Joo, Shinha;Kim, Kyungmok
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.11 no.5
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    • pp.104-113
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    • 2008
  • The importance of the green space in urban area has been increasing. There are the increasing needs of creation and sustainable management of urban forest. In order to satisfy the need, it is necessary to set indicators for sustainable urban forest. With this regard, this study is to derive the indicators for evaluation of the urban forest through literature reviews, experts opinion, and field survey. The results of the study, the indicators consist of the ecological healthiness, socio-cultural function, and scenic beauty. The ecological healthiness includes stability and naturality (e.g. area, native species, connectivity etc.). The socio-cultural function contain improvement of living environment, stable emotion, community, and environmental education. The scenic beauty includes environmental-friendly facilities, maintenance of urban forest. The indicators have high feasibility to create and manage the urban forest through evaluating urban forest in practical. This indicators are useful to guide to develop urban forest and park.