• Title, Summary, Keyword: Pollution evaluation

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The Development of Water Pollution Evaluation System using Fussy Integral (퍼지 적분을 이용한 수질오염 평가 시스템 구현)

  • Song Young-Jun;Kim Mi-Hye;Chung Keun-Yook;Lee Sang-Seung;Park Sung-Hoon
    • Proceedings of the Korea Contents Association Conference
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    • pp.391-395
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    • 2005
  • In this paper, the new evaluation system for water quality pollution is implemented using fuzzy integral based on the conventional evaluation criterions and their evaluation factors and this is the first phase in the whole water quality pollution evaluation system development. In the final evaluation for water quality pollution the factors like BOD, COD, SS, T-N, and T-P are taken into overall accounts. It is found that the final evaluation can be represented in a linear combination of respective factor evaluation when each factor is independent one another, With respect to the combination patterns the fuzzy measurement is defined and the fuzzy integral is taken. As a result this approach shows stable and reliable evaluation for the water quality pollution evaluation system development.

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The Influence of Air Pollution Level on Resident's Evaluation and Cognition for Indoor Environment in Ulsan (울산지역의 대기오염 환경의 차이가 거주자의 실내환경 평가 및 인식에 미치는 영향)

  • Yoo, Bok-Hee
    • Journal of the Korean housing association
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    • v.21 no.3
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    • pp.87-94
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    • 2010
  • The aim of this study was to evaluate the influence of air pollution level in industrial and residential district of Ulsan on resident's evaluation and cognition for indoor environment. The evaluation of air pollution materials (as $SO_2$, $NO_2$, $O_3$, CO, PM10) were investigated to understand the distributional characteristics in survey area, and air quality monitoring data from 2007 to 2009 were used. The data was applied in a realtime measurement of industrial and residential area respected to difference of the pollution level in Ulsan. The questionnaire of this survey for resident's cognition was to find out characteristics on perception of indoor environment and outdoor air quality recognition based on the distinct characteristics of the areas. The results of this study shows that resident's satisfaction at clean level outdoor air and indoor environment were different whether it was residential area or industrial area and outdoor air pollution level has direct influence on resident's satisfaction in indoor environment.

A Study on the Water Resource and Environmental Pollution Level of Education Facilities in Green Building Certification Criteria (학교시설 친환경건축인증 사례를 통한 수자원 및 환경오염 평가항목 연구)

  • Kwag, Moon-Geun;Choi, Chang-Ho
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.21 no.12
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    • pp.678-687
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    • 2009
  • The purpose of this study is to develop the assessment category, items, a detail standard for environmentally friendly evaluation on the school. and to analyze the plan to improve the level of certification criteria on the School's water resource and environmental pollution. The results of this study brings on promoted environmentally friendly appreciation, resource con servation, reduction of contaminant, accordance in and around building, etc. For this purpose, analysis of domestic and foreign environmental friendly architectural citation screening system-BREEAM (1991), LEED 2.0(2001) etc.-was preceded, and through interview, survey and forum with professional group, developed evaluation item was verified and reappraised. Developed evaluation item were composed of 40 schools about water resource and environmental pollution.

Development of Desktop-Based LDC Evaluation System for Effectiveness TMDLs (효과적인 오염총량관리를 위한 데스크탑 기반의 LDC 평가 시스템 개발)

  • Ryu, Jichul;Hwang, Ha-Sun;Lee, Sung-Jun;Kim, Eun Kyoung;Kim, Yong Seok;Kum, Donghyuk;Lim, Kyoung Jae;Jung, Younghun
    • Journal of The Korean Society of Agricultural Engineers
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    • v.58 no.4
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    • pp.67-74
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    • 2016
  • Load Duration Curve (LDC) can be used as a method for load management of point and non-point pollution source because the LDC easily assesses the water quality corresponding to hydrological changes in a watershed. Recently, the application of LDC to total pollution load management is a growing interest in Korea. In this regard, A desktop-based LDC assessment system was developed in this study to provide convenience to users in water quality evaluation. The developed system can simply produce the LDC by using streamflow and water quality data involved in its database. Also, The system can quantitatively inform the success or failure of the achievement for a target water quality at monthly scale. Furthermore, seasonal water quality and point/non-point pollution load in a watershed can be estimated by this system. We expect that the developed system will contribute to establish local and national policies regarding water management and total pollution load management because of its advantages such as the pollution tracking investigation and the analysis of water quality and pollution loading amount in an ungauged watershed.

A study of LCA(Life Cycle Assessment) to a office building remodeling - Focused on Electrical Equipment - (사무소건축 리모델링에서의 전과정 평가에 관한 연구 - 전기 부분을 중심으로 -)

  • Lee, Seon-Dong;Yoo, Ho-Chun
    • Journal of the Korean Solar Energy Society
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    • v.24 no.3
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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.

Sensitivity and Uncertainty Analysis of Two-Compartment Model for the Indoor Radon Pollution (실내 라돈오염 해석을 위한 2구역 모델의 민감도 및 불확실성 분석)

  • 유동한;이한수;김상준;양지원
    • Journal of Korean Society for Atmospheric Environment
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    • v.18 no.4
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    • pp.327-334
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    • 2002
  • The work presents sensitivity and uncertainty analysis of 2-compartment model for the evaluation of indoor radon pollution in a house. Effort on the development of such model is directed towards the prediction of the generation and transfer of radon in indoor air released from groundwater. The model is used to estimate a quantitative daily human exposure through inhalation of such radon based on exposure scenarios. However, prediction from the model has uncertainty propagated from uncertainties in model parameters. In order to assess how model predictions are affected by the uncertainties of model inputs, the study performs a quantitative uncertainty analysis in conjunction with the developed model. An importance analysis is performed to rank input parameters with respect to their contribution to model prediction based on the uncertainty analysis. The results obtained from this study would be used to the evaluation of human risk by inhalation associated with the indoor pollution by radon released from groundwater.

The Priority Management Ranking by using the Classification of Vulnerable Areas for the Soil Contamination in Busan Metropolitan City (부산시 토양오염 취약지역 등급화를 이용한 우선관리대상 순위 선정)

  • Jung, Hyunjung;Lee, Minhee;Doe, Jinwoo
    • Journal of Soil and Groundwater Environment
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    • v.20 no.7
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    • pp.1-12
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    • 2015
  • The purpose of this study is to highlight the National Classification System related to cleanup the soil contaminated sites and to provide some guidance to address the priority management rank system before the remediation for Busan metropolitan city. Based on the previous soil investigation data, the quantitative classification of vulnerable areas for soil pollution was performed to successfully manage the contaminated sites in Busan. Ten evaluation factors indicating the high soil pollution possibility were used for the priority management ranking system and 10 point was assigned for each factor which was evenly divided by 10 class intervals. For 16 Gu/Guns in Busan, the score of each evaluation factor was assigned according to the ratio of the area (or the number) between in each Gu (or Gun) and in Busan. Ten scores for each Gu (or Gun) was summed up to prioritize the vulnerable Gu or Guns for soil pollution in Busan. Results will be available to determine the most urgent area to cleanup in each Gu (or Gun) and also to assist the municipal government to design a successful and cost-effective site management strategy in Busan.

Rainfall Effects on Discharged Pollution Load in Unit Watershed Area for the Management of TMDLs (수질오염총량관리 배출부하량에 대한 강우영향 분석연구)

  • Park, Jun Dae;Oh, Seung Young
    • Journal of Korean Society on Water Environment
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    • v.26 no.4
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    • pp.648-653
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    • 2010
  • Discharged pollution load for the management of Total Maximum Daily Loads (TMDLs) is calculated on the basis of rainfall data for reference year. Rainfall has an influence on discharged pollution load in unit watershed with combined sewer system. This study reviewed the status of discharged pollution load and rainfall conditions. We also investigated rainfall effects on discharged pollution load by analyzing change of the load in accordance with increase of rainfall. The change ratio of discharged pollution load was 18.6% while inflow load only 5.8% for 5 years from 2004 to 2008 in Daejeon district. The greatest rainfall and rain days were over 2 times than the least during the period. This change in rainfall could have great effect on discharged pollution load. The analysis showed that discharged pollution load increased 2.1 times in case rainfall increased 2 times and 1.2 times in case rain days increased 2 times. Rainfall effects, therefore, should be considered to make resonable evaluation of discharged pollution load in the assessment of annual performances.

Trends of Study and Classification of Literatures on Environmental Pollution in Korea (우리나라에서의 환경오염 관련 문헌분류 및 연구동향)

  • 배준형;이종영;장봉기
    • Journal of Environmental Health Sciences
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    • v.22 no.3
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    • pp.37-48
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    • 1996
  • The purpose of this study is to provide the valuable basic information that helps set the advanced direction of study in environmental pollution in the future. It classifies and analyzes 6, 531 papers according to their years, fields, and contents from 1962 to 1993 in Korea through Chunrian, a PC communication network, National Environment Research Institute(1989) in Seoul. Classifying papers by their fields, this study shows 19.6%(1, 281 papers) of total papers on water pollution, on which most emphasis was placed in the studies, 17.2%(1, 121 papers) on general remarks, 14.6%(952 papers) on environmental ecology, and 13.6%(891 papers) on air pollution. Classifying papers by their contents, this study tells us that the survey of state and evaluation of pollution degree took 28%(1, 829 papers) of total papers, and it seemed the most active study was carried out on this content. It then shows us that the treatment technology and mechanism shared 17.5%(1, 144 papers), and facilities and design took 1.9%(127 papers) which needed more studies in the future. As for the trends of study, the papers published until 1979 show that the water pollution accounted for 28.9% of total studies, on which the greatest emphasis was placed, while the papers in 1990s tell us that general remarks 34.7%, air pollution 14.9%, and water pollution 14.1%. It also shows that treatment technology and mechanism has had more importance since 1980s in water pollution, noise and vibration, waste materials, human wastes, and radioactive pollution. However, in sea pollution, policy and standard rather than treatment technology or method of measurement and analysis has been considered a more important one in 1990s. Analyzing the studies on general remarks, it tell us that the paper on environmental act, which were frequently conducted, accounted for 33.3% until 1979, while the papers on the environmental policy, in which the highest interest was kept, accounted 34.6% in 1990s. This study concludes that most papers had examined the survey on status and evaluation of pollution degree before 1980, while studies on solving the problems of environmental pollution have had more importance in the 1980s and 1990s. Therefore, in the future, more studies should be conducted actively on policy development to solve the problems of environment pollution as well as on encouragement of environmental consciousness.

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Evaluation and Selection Method of Best Available Techniques for Integrated Environmental Management System (통합환경관리제도 운영을 위한 최적가용기법 평가·선정기법 연구)

  • Park, Jae Hong
    • Journal of Korean Society on Water Environment
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    • v.33 no.3
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    • pp.348-358
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    • 2017
  • The process of evaluating and selecting the best available techniques presents various characteristics for each country. In the case of EU, BAT is selected through TWG meeting after first screening, mass and energy balance, impact assessment and decision support process. Korea has proposed four principles to select BAT that can be carbon neutral for each environmental infrastructure in order to reduce greenhouse gas emissions. In order to evaluate and select the best available technique, it is necessary to differentiate the method according to whether it is a technique generally applied at the current workplace, whether it is a single technique or a combination technique, and whether it is a technology technique or management technique. In the case of a single technique, it should be evaluated whether it is a technique applied in the workplace, excessive cost, superior environmental technique over BAT, and secondary environmental pollution. In the case of multiple techniques, it is necessary to examine whether the emission standards are met and whether the pollutants can be treated at the same level as BAT. In the case of BAT candidates for management techniques, whether or not they contribute directly or indirectly to lowering the emission level of pollutants can be an important evaluation item. In the case of environmental techniques that are not generally applied in the workplace, it is recommended that the following 8 steps be carried out, including those prescribed by law. In the first stage, the list of performance evaluation factors is listed. In the second stage, the level of disposal of pollutants and the level of satisfaction with standards are listed. In the third stage, the environmental evaluation elements are listed. In the fourth stage, Is to list the economic evaluation elements, step 6 is to list the pollution and accident prevention evaluation factors, step 7 is the quantitative evaluation of the technical working group, and step 8 is BAT confirmation through deliberation of the central environmental policy committee.