• Title/Summary/Keyword: 대기오염 정보

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The Impact of Air Quality on Traveling Time by Transportation Mode (대기오염 수준이 교통수단별 통행시간에 미치는 영향 분석)

  • Jo, Eunjung;Kim, Hyunchul
    • Environmental and Resource Economics Review
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    • v.30 no.2
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    • pp.207-235
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    • 2021
  • This paper examines the effects of ambient air pollution by ozone and particulate matter on traveling by mode of transport. We estimate the SUR model of travel time by different modes of transportation using individual level data of travel diaries. We find that, as air pollution levels rises, traveling by privately-owned vehicles increases but traveling by bus decreases. Our results also show that, when an air quality alert is issued, bus traveling increases in an effort to reduce pollution levels, but traveling by own car does not change and traveling by train declines. This suggests that alert programs may not be highly effective in reducing air pollution emissions from vehicles because voluntary switching to public transportation induced by air quality alerts is outweighed by individual effort of avoiding exposure to pollution.

A Study on Drone Flight Trajectory for Accurate Detection of Air Pollutant Emission Designation (정확한 대기오염물질 배출 지정 탐지를 위한 드론 비행 궤도에 관한 연구)

  • Kim, Suyeong;Lee, Sukhoon;Jeong, Dongwon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2021.10a
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    • pp.15-17
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    • 2021
  • This paper proposes a drone flight trajectory method for accurate air pollutant emission designation detection. In areas with many factories, such as industrial complexes, there are workplaces that illegally emit air pollutants in a situation where monitoring is neglected. In the past, studies have been actively conducted to measure air pollutants in these areas using drones. The measurement method using a drone uses a method of detecting pollution by stopping around the chimney of a factory, but it has a problem in that the detection of air pollutants is inaccurate depending on environmental factors such as air pressure and wind. Therefore, this paper proposes a drone flight trajectory method for accurate air pollutant emission designation detection. This paper devises a screw orbit flight method in which a drone flies upward while rotating the chimney, and the total area of the chimney is detected and measured considering environmental factors. In the experiment, our proposal shows a higher performance than the existing method.

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Morphology and Chemical Composition Analysis of Individual Particles at Large Anthropogenic Emissions by SEM-EDS (인위적 대형 배출원에서 SEM-EDS법을 이용한 개별 입자상 물질의 형태와 화학적 조성 분석)

  • 양수명;박정호;정재우;서정민;최금찬
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.368-369
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    • 2003
  • 각종 배출원에서 배출된 입자상 물질은 대기 중 확산, 이동, 침착 등을 통해 국지적 도시오염 뿐만 아니라 장거리까지도 이동함으로서 광역적 대기오염의 원인이 되고 있는 등 입자상 물질의 발생원 추적에 관한 연구가 필요한 실정이다. 지금까지 입자상 물질의 발생원 추적은 대부분 배출원의 발생량 조사나 필터에 포집된 시료의 전체적인 화학적 분석의 개념으로 단시간의 시간변동과 개개의 입자가 가지는 정보가 무시되고 평균화되고 있다. (중략)

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