• Title/Summary/Keyword: Air Pollutions

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An Analysis and Control of Pb Pollutions of Soils by Pollens (화분에 의한 납의 오염도 분석과 그 방제에 관한 연구)

  • 장남기;고영현;홍순철
    • Asian Journal of Turfgrass Science
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    • v.12 no.1
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    • pp.31-48
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    • 1998
  • In this paper, pollen types of plants and Pb, N, P, K, Ca and Na in pallens of trees were investigated to control the air and soil pollutions. Morphological types of about 500 species of plants were identified to make the best use of paleontology, medicine and pharmacy. There were the positive correlations between Pb, N, P, K,Ca and Na contents in pollens and soils, respectively. A heavy metal, Pb, contained in pollens was not absorbed by rats. This fact should be utilized to purify air and soils polluted by Pb. Key words: Pb, Pollen, Pollution, puripication, Control.

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Review of Air Pollution and the Related Regulations in China

  • Qi, Shang
    • Proceedings of the Korean Environmental Health Society Conference
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    • 2003.06a
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    • pp.50-65
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    • 2003
  • Air pollution is very serious in China. This paper reviews the relevant research and countermeasures in China. The followings are focused in this article: 1) three major types of air pollutions: sulphur dioxide, vehicle emission and indoor air pollution; 2) the health effect of the three types of pollution; 3) major countermeasures adopted by Chinese Government.

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Estimation for the Reduction of Atmospheric Deposition of Air Acid Pollutions in Silla Culture Region (신라문화권 지역에서 산성대기오염물질 침적량 추정)

  • 이승일
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2002.11a
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    • pp.79-80
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    • 2002
  • 경주시는 신라 천년의 고도로서 신라의 역사와 문화가 아직도 곳곳에 남아 있는 국내 최대의 역사도시이자 유적도시로 잘 알려져 있으며, 세계적으로 역사적인 문화가치를 인정받아 유네스코에 의해 세계문화유산으로 지정된 불국사, 석굴암, 남산 및 고분군 등의 문화재가 분포하고 있다. 특히, 경주시 지역에는 다보탑, 석가탑, 석굴암 및 불상 등 세계적으로 유명한 석조문화재가 고 밀도로 분포되어 있다. (중략)

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Oxidative Stress Resulting from Environmental Pollutions and Defence Mechanisms in Plants (환경오염(環境汚染)에 의한 산화(酸化)스트레스와 식물체(植物體)의 방어기작(防禦機作))

  • Shim, Sang-In;Kang, Byeung-Hoa
    • Korean Journal of Environmental Agriculture
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    • v.12 no.3
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    • pp.264-280
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    • 1993
  • The environmental pollutions were a serious problem in Korea recently. So many researcher have studied the effect of environmental pollution on plants and agro-ecosystem, but the basic mechanisms of environmental stresses were various. One of the important mechanisms was oxidative stress caused by active toxic oxygen. The toxic oxygen was generated by several stresses, abnormal temperature, many xenobiotics, air pollutants, water stress, fugal toxin, etc. In the species of toxic oxygen which is primary inducer of oxidative stresses, superoxide, hydrogen peroxide, hydroxyl radical and singlet oxygen were representative species. The scavenging systems were divided into two groups. One was nonenzymatic system and the other enzymatic system. Antioxidants such as glutathione, ascorbic acid, and carotenoid, have the primary function in defense mechanisms. Enzymatic system divided into two groups; First, direct interaction with toxic oxygen(eg. superoxide dismutase). Second, participation in redox reaction to maintain the active antioxidant levels(eg. glutathione reductase, ascorbate peroxidase, etc.).

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Non-thermal Plasma for Air Pollution Control Technology (저온 플라즈마 이용 대기환경설비기술)

  • Song, Young-Hoon
    • Applied Chemistry for Engineering
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    • v.17 no.1
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    • pp.1-11
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    • 2006
  • Non-thermal plasma technology for air pollution control, which are NOx, SOx, VOCs, soot, etc., is reviewed. In the early parts of the paper, generation of non-thermal plasma and plasma chemical process are introduced to provide an appropriate plasma condition (electron energy density) for treating air pollutions. Recent results on numerical simulation, optical diagnostics, and gas treatment are provided to characterize an optimal design of plasma generation and plasma chemical process. These data are also helpful to understand unique features of non-thermal plasma process that is achieved with relatively low temperature conditions, i.e. low enthalpy conditions of the treated gas molecules. In the later parts of the paper, several examples of recently developed non-thermal plasma techniques are illustrated, in which technical and economical assessments of the present techniques are provided.

A Study on the Air Pollution Impact Analysis Using the Environmental Information Management System (環境情報管理 系(EIMS)를 이용한 대기오염 피해분석방법에 관한 연구)

  • 박종화;장영기
    • Journal of Korean Society for Atmospheric Environment
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    • v.2 no.3
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    • pp.19-26
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    • 1986
  • The degree of air pollution is usually presented in terms of concentration. But, in evaluating the environmental impacts or air pollution control policies, the concentration values need to be interpreted in terms of damage effects on property and human health. The damage effect varies with the types of pollution, subjects and land use pattern of an affected area. Therefore, this study is aimed at developing a method of analyzing effects of various types of air pollutions on surrounding environmental setting with the EIMS (Environmental Information Management System) developed for land suitability analysis. Using the method formulated in this study, the long- term effects of such pollutants as $SO_2$ and HF on types of vegetation and residents, and potential, short-term effects of HCl leak accidents from manufacturing facilities in Ulsan and Onsan Industrial complex are analyzed. The presentation of the damage effects of air pollution rather than the concentration of pollutants will be useful for the preparation of environmental impact statements, the formulation of environmental policies, and the development of land use plans in heavily industrialized areas.

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