• 제목/요약/키워드: Air pollution emission

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우리나라 대기오염 역사, 규제의 변천, 현행 규제제도의 개선방안 (Air Pollution History, Regulatory Changes, and Remedial Measures of the Current Regulatory Regimes in Korea)

  • 김동술
    • 한국대기환경학회지
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    • 제29권4호
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    • pp.353-368
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    • 2013
  • All Koreans had suffered heavily from municipal and industrial air pollution problems since 1960's to 1980's. However the levels of $SO_2$, CO, and Pb have been dramatically decreased since 1990's due to various air pollutants' reduction policies under the provisions of the 1978 Environmental Preservation Act and the 1990 Air Quality Preservation Act such as increasing the supply of low-sulfur fuel, the use of cleaner fuel, no use of solid fuel, and so on. Even though the national ambient air quality standard has been strengthened to protect public health and welfare, the levels of $NO_2$, $O_3$, and $PM_{10}$ frequently exceed the corresponding standards; for example, only 4 stations (1.7%) out of 239 nationwide monitoring stations satisfied the 24-hr based PM10 standard in 2011. Moreover, upto the present time, since there are serious underlying policies of economism and growth-first which can not be solely solved by the environmental laws, it is difficult to root out undesirable social evils such as public indifference, passive academic activities, complacent government bureaucracy, insufficient social responsibility of enterprise, and radical activities of environmental groups. The paper initially reviewed air pollution history of Korea with surveying various environmental factors affecting in/out-door air pollution in the past Korea. Further this study extensively investigated legal and political changes on air pollution control and management for the last 50 years, and then intensively discussed the present environment-related laws and policies unreasonably enforced in Korea. It is necessary to practically revise many outdated legal policies based on health-oriented thinking and on our current economic levels as well.

수도권지역 승용차에 의한 Cold Start와 Evaporative VOC를 고려한 배출량 추정 (Estimation of the Emission form Passenger Car Considering Cold Start and Evaporative VOC Emission in the Capital Area)

  • 장영기;최상진;홍영실
    • 한국대기환경학회:학술대회논문집
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    • 한국대기환경학회 2003년도 춘계학술대회 논문집
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    • pp.157-158
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    • 2003
  • 급증하는 자동차 수요로 인해 발생되는 배출량 증가는 자동차 운행의 특성상 대도시 대기오염의 주원인으로 작용하고 있다. 자동차 배출오염물질의 배출량 추정 및 관리에 있어 연간 배출량 뿐만 아니라 월별 기온변화에 따른 배출량의 시간분포 또한 고려되어야 한다. 본 연구에서는 Hot emission에 부가되는 Cold start emission과 Evaporative VOC emission의 산정에 있어서 차종/차령에 대해서 월별 배출량을 추정하여 보았다. (중략)

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주.보기용 4행정 대형디젤엔진의 IMO운전모드에 따른 배기 배출특성 (The Emission Characteristics of a 4-stroke Large Diesel Engines for Propulsion and Generation Application in IMO modes)

  • 김현규;김규보;전충환;장영준
    • 대한기계학회논문집B
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    • 제26권10호
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    • pp.1472-1479
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    • 2002
  • Environmental protection on the ocean has been interested and nowadays the International Maritime Organization(IMO) has advanced on the prevention of air pollution from ships. This study presents the emission characteristics of 4 stroke marine diesel engines in E3 cycle (propulsion application) and D2 cycle (generation application). Also the effects of important operating parameters in terms of intake air pressure and temperature, and maximum combustion pressure on the specific emissions are described. Emissions measurement and calculation are processed according to IMO Technical Code. The results show that NOx emission level in E3 cycle is higher than that in D2 cycle due to lower engine speed at low load and the maximum combustion pressure by fuel injection timing control and intake air temperature has strong influence on NOx emission production. And CO, HC emissions are not affected by maximum combustion pressure and intake air pressure and temperature.