• 제목/요약/키워드: Environmental pollution problems

검색결과 813건 처리시간 0.023초

철도 모달시프트 정책대안 사례 연구 (A Case Study on the Policy Alternatives of Railway Modal-shift)

  • 김영훈
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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    • pp.477-483
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    • 2011
  • Climate changes and environmental pollution problems are continuing every year. In Korea, the carbon dioxide(CO2) emissions by the transport sector reached around 20% of pollution. Many countries are enforcing the pollution-control policy. Korean government has introduced the modal shift grants as well as in other countries. In case of nation's transportation plan, the policy basis of green distribution is emphasized. However, the shipper and logistics company have low interests in the modal shift as the massive transportation system. The purpose of this paper is that I studied the policy alternatives for the modal shift of foreign railways., And also I studied the difficult problems at altering the railway freight from domestic road freight and I suggested the alternatives of modal shift to solve those problems.

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중학생의 환경세계관과 환경의식 (Middles School Students Worldview and Consciousness about the Environment)

  • 정철
    • 한국환경교육학회지:환경교육
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    • 제17권1호
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    • pp.122-132
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    • 2004
  • The present study is to investigate the middle school students' worldview and consciousness about the environment. To conduct this study, 605 students from the two middle schools of Daegu metropolitan area, seventh grade, were measured using a modified version of New Environmental Paradigm (NEP) instrument and qustionnaire of environmental consciousness. The results are as follows: First, a majority of middle school students held an ecological environmental worldview. They also had a similar environmental worldview to education experience on environment-related to subjects. The strongest area of agreement with the NEP were in the "Negative results of growth and technology." The weakest area of agreement with the NEP were in the "Quality of life" dimension with only 44.9 percent agreement across that dimension's four statements. Second, the middle school students are sensible of consciousness in environmental problems. They pointed out that air pollution and noise are the most as sever problems in country and local area, respectively. Finally, the subjects who showed the higher environmental worldview had a higher environmental consciousness and better attitudes related to environmental problems.

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A Study on the Effect of Abelmoschus Manihot Jinhuakui Extract on Odor Reduction

  • Gok Mi Kim
    • International Journal of Advanced Culture Technology
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    • 제12권1호
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    • pp.281-286
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    • 2024
  • With the commercialization and full-timeization of the livestock industry, civil complaints continue to increase, and the livestock industry is facing a crisis due to social problems such as odor caused by livestock manure, soil pollution, water pollution, and environmental pollution. In order to increase productivity in livestock farms, the amount of livestock manure generated is increasing due to excessive use of protein feed and high-density breeding environment, and complaints such as odor and water pollution due to management problems are increasing rapidly. Livestock odor has emerged as a serious social problem, and due to growing complaints, conflicts between the Ministry of Agriculture and Forestry and the Ministry of Environment are even causing the livestock industry to lower its status. There is an urgent need for solutions to identify problems in the livestock industry and improve policies. This study aims to develop a " Abelmoschus Manihot Jinhuakui " brand that can improve the intestinal environment of livestock, reduce odors caused by livestock excrement, and improve the productivity of livestock farms in order to improve the increasingly serious odor problem in livestock sites. For Jeju livestock farms, which place more importance on the environment by securing tourists, eco-friendly feed additives were applied to the experiment, the results were derived, and the focus was on solving fundamental problems of odor generation through the development and packaging of feed additive brands. We aim to fundamentally solve the odor problem of domestic livestock farms, secure eco-friendly livestock farms, and contribute to reducing livestock odors and increasing productivity through research results that reduce ammonia levels in each livestock farm.

동아일보 기사 수, 단수, 내용을 통한 쓰레기 문제의 중요도 변천분석 : 1920-1990년사이 (The Changes of the Garbage Problem Importance through the Number of Articles, Column Headings and Contents of Dong A Ilbo)

  • 신경주
    • 한국주거학회논문집
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    • 제13권3호
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    • pp.1-9
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    • 2002
  • Desolation of the earth due to environmental pollution is rising as a world wide problem and concern. At this point we need to look into the problem and set up a direction for the future. In order to reveal the change of garbage problems in our county's civil life, a researcher analyzed 369 garbage related articles from the first edition of Dong A Ilbo up to 1990. The following is the result of data from garbage related articles. It is organized by age and era(10 years). 1) Number of articles by year roses in 1921 after first publication of garbage problem article. In the 1930s, the number of articles drastically increased in 1937. From then on, the number of articles declined until early 1970s but roses again from 1978. 2) Yearly change in articles was a mere 1.2 columns in between 1920 to 1960. In the 1970's, relative importance increased and over 5 columns were published. Articles rose in the 1980s with over 3.4 and 5 columns. 3) The contents of the articles can be classified into cleaning problems, collecting and transporting, expenses, and recycling. Garbage disposal problems continued until the 1970s. Regarding garbage collecting problems, form of collecting container and location was discussed. Laws were revised after garbage disposal areas were discussed in the 1920s. Expenses were levied from the 1930s and rising cost and double charge problems were subjected. Garbage recycling began in the 1920s and continued until 1900s.

도시 물 문제 저감을 위한 회복탄력적 사회기반시설 구축: 2. 수질오염 문제 구조적 대안의 내구성 평가 (Establishment of Resilient Infrastructures for the Mitigation of an Urban Water Problem: 2. Robustness Assessment of Structural Alternatives for the Problems of Water Pollution)

  • 정지현;이창민;안진성;김재영;최용주
    • Ecology and Resilient Infrastructure
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    • 제3권3호
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    • pp.182-188
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    • 2016
  • 본 연구는 도시 홍수문제의 구조적 해결방안을 도출하기 위하여 내구성-비용지수 (robustness cost index, RCI)를 수질오염 문제 사례에 재해석 및 적용하였다. 처리기준 산정방식이 다른 하수 처리수 내 내생호르몬 오염과 취수원 원생동물 번성을 대표 사례로 선정하여 기존시설과 대안시설 (구조적 대안)의 내구성 지수 (RI) 값이 1 이상인 경우를 내구성을 확보한 대안으로 판정하고 내구성 지수와 비용지수 (CI)를 결합한 RCI 값을 산정하였다. 하수 처리수 내 내생호르몬 오염은 인체로부터 기인하는 $17{\beta}$-estradiol 을 대상 오염물질로 하여 현재 하수처리시설과 대안시설 (고도처리공정 증축)을 비교하였고, 고도처리공정을 증축한 사례에서 RI뿐만 아니라 RCI 값이 큰 결과가 나타났다. 취수원 원생동물 번성의 경우 크립토스포리디움을 처리하기 위한 소독방안으로 자외선 소독과 오존 소독을 대상으로 RCI를 산정하였고 오존 소독시설이 RCI값이 더 높은 것을 확인하였다. 처리기준이 다른 수질오염사례의 RCI 산정과정과 도출한 값을 바탕으로 재해 발생 시 피해 복구와 피해 방지를 위한 구조적 대안 수립과정의 방향을 제시하고 그 구축전략을 제안하였다.

중국의 공업화에 따른 황사가 한반도에 미치는 영향 (The Influence of Asian Dust to Korea by Industrialization of China)

  • 김주항
    • 기술사
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    • 제33권5호
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    • pp.16-22
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    • 2000
  • The rapid industrializing of China has helped the development of the industrial economy since 1980. However, the problem is some environmental pollution, such as SO$_2$, TSP, HOx, Dioxin etc, generated by the industrial facilities located in Northeastern China is moving to the Korean Peninsula through the cold air stream during the Asian dust season, This kind of air pollution worsens the environmental pollution of the Korean Peninsula year by year. Therefore, NGO suggests to China that the minimization of the environmental problems linked to both Korea and China has to be discussed. In fact, I would like to suggest that the activity of EMS(ISO14000) should help the environmentally sound '||'&'||' sustainnable development of both countries,

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신문에 반영된 사회환경과 세제 변화 (Transition of Social environment and Detergent Based on Newspapers: Focusing on Mail, Dong-a and Cho-seun ilbo from 1910`s to 1998`s)

  • 신상숙
    • 복식문화연구
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    • 제7권1호
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    • pp.165-176
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    • 1999
  • The objective of this study was to investigate news on the detergent to know transition of the detergent and the social environment in the Korean daily newspapers. The relationship between social environment and detergent were analyzed articles of Mail, Dong-a and Cho-seunilbo from 1910\`s to 1998\`s. The results were as follows. Times of ancient detergent had been existed natural cleaners. Times of hard-type detergent was happened problems the environmental pollution and the safty of the human body. Times of soft -type detergent needed development new detergents for decrease of environmental pollution. Times of detergent on the affinity environment were used the refill products, mark of environmental protection for decrease the pollution of the environment.

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신환경영향평가기술(新環境影響評價技術)의 개발방향(開發方向) (New Environmental Impact Assessment Technology)

  • 한상욱;이종호;남영숙
    • 환경영향평가
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    • 제9권4호
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    • pp.277-290
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    • 2000
  • The purpose of this study is to identify the problems of environmental impact assessment(EIA) and to suggest new EIA technology. The problems of EIA in Korea can be summarized as follows. First, the EIA does not reflect the impact of policy, plan and program on environment. Second, the project EIA does not consider the cumulative impacts such as additive impacts, synergistic impacts, threshold/saturation impacts, induced and indirect impacts, time-crowded impacts, and space-crowded impacts. Third, the EIA techniques in Korea are not standardized. Finally, the present EIA suggests only alternatives to reduce adverse impacts. To solve above-mentioned problems, the development of new EIA technology is essential. First, the new EIA technology should be developed toward pollution prevention technology and comprehensive and integrated environmental management technology. Second, new fields of EIA for pollution prevention contain strategic environmental assessment, cumulative impacts assessment, socio-economic impact assessment, cyber EIA and EIA technology necessary after the reunification of Korean Peninsula. Third, EIA technology for integrated environmental management contains the development of integated environment assessment system and the development of packaged EIA technology. The EIA technology for integrated environmental assessment system contains (1) development of integrated impact assessment technology combining air/water quality model, GIS and remote sensing, (2) integrated impact assessment of EIA, traffic impact assessment, population impact assessment and disaster impact assessment. (3) development of integrated technology combining risk assessment and EIA (4) development of integrated technology of life cycle assessment and EIA, (5) development of integrated technology of spatial planning and EIA, (6) EIA technology for biodiversity towards sustainable development, (7) mathematical model and GIS based location decision techniques, and (8) environmental monitoring and audit. Furthermore, there are some fields which need packaged EIA technology. In case of dam development, urban or industrial complex development, tourist development, landfill or combustion facilities construction, electric power plant development, development of port, road/rail/air port, is necessary the standardized and packaged EIA technology which considers the common characteristics of the same kind of development project.

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환경교육 영상매체 활용 수업이 환경 감수성에 미치는 영향 (The Effect of Using Image Media for Environmental Education on Students' Environmental Sensitivity)

  • 최성봉
    • 한국환경과학회지
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    • 제17권10호
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    • pp.1183-1193
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    • 2008
  • Today, environmental pollution and destruction due to the industrialization of our modem society have been the global issues. Although now we can lead affluent lives through science technologies and economic development, these environmental problems have resulted in striking the harmonious balance between human beings and nature and threatened human lives with abnormal weather caused by the global warming, destruction of the ozone layer, and El Nino phenomenon, acid rain, decrease in species diversity, movement of hazardous materials, and harmful waste increase. We are aware of the importance of environmental education, but in reality, it seems impossible to implement appropriate environmental education on account of our educational climate which exclusively focuses on the entrance examination. However, environmental education is the most ultimate solution for those problems in that only when students understand our environment fully and grow habits to protect it through environmental education, the present environmental problems can be solved and more serious problems that can be resulted in the future can possibly be prevented. Thus, this study has examined the effect of using image media in the environment subject on students' environmental sensitivity. According to the results, it was shown that it had positive effects on 'sensitivity of environment', 'attitudes towards environment', and 'environmental affinitive behaviors'.

알루미늄 연속주조 용탕의 탈 가스 일체화 장치 개발 (An Implementation of an Integrated Degasing System for Aluminum Molten Metal in Continuous Casting)

  • 이용중
    • 한국공작기계학회논문집
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    • 제17권1호
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    • pp.1-6
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    • 2008
  • There are some methods that have been used to manage a degasing process in recent years, such as an injection method that uses aluminum molten metal powder and chemicals supplier and input method that supplies argon and nitrogen, or chlorine gas by using a gas blow-tube. However, these methods show some problems, and it shows that it is a difficult process to handle, pollution due to producing a lot of toxic gases like chlorine and fluoride gas, irregular effects, and lowering work efficiency due to the excessive processing time. The problems that are the most fatal are the producing a lot of sludge due to the reaction of aluminum molten metal with chemicals, loss of metals, and decreasing the life of refractory materials. In order to solve these problems, this paper develops a technology that is related to aluminum continuous casting molten metal and monolithic degasing apparatus. A degasing apparatus developed in this study improved the existing methods and prevented environmental pollution with smokeless, odorless, and harmlessness by using a new method that applies argon and nitrogen gas in which the methods used in the West and Japan are eliminated. The method developed in this study decreases the molten metal processing and settling time compared to the existing methods and improves the workers' health, safety, and environment because there is no pollution in processes.