• Title/Summary/Keyword: Atmospheric environment

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A Status of Atmospheric Environmental Impact Assessment and Future Prospects (대기환경영향평가 현황 및 향후 과제)

  • Koo, Youn-Seo;Choi, Dae-Ryun;Kim, Sung-Tae;Lee, Beom-Ku;Yu, Jung-Min;Lee, Seung-Hoon;Cheong, Chang-Yong;Lim, Jeong-Dae
    • Journal of Korean Society for Atmospheric Environment
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    • v.29 no.5
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    • pp.581-600
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    • 2013
  • The current status of atmospheric environmental impact assessment (EIA) has been summerized and future prospective for effective and accurate atmospheric EIA has been proposed by reviewing available papers and reports for the atmospheric EIA. The number of reports for the EIA in the EIA support system which is operated by the Korean Environmental Institute have been dramatically decreased from 282 reports in 2008 to 113 reports in 2012 during recent five years. This is partially due to simplification of the EIA procedure, the contraction of the public development and economic recession. We analyzed details of the EIA report to review how actual atmospheric EIA has preformed according to the EIA guidelines from the Korean Ministry of Environment. The 264 reports of EIA published in 2011 and 2012 had been reviewed especially focusing on the atmospheric evaluation items such as meteorology, air quality measurement and modeling, odor measurement and modeling, wind corridor in urban planning, and climate change. In overall sense, the atmospheric EIA has been performed quite well by abiding the guidelines except for local meteorological data measurement, permit standard for air quality and wind corridor. The new approaches to improve the procedure of atmospheric EIA and to reflect future of national air quality standard of $PM_{2.5}$ have been proposed. The guidelines on how to evaluate the wind corridor, to implement atmospheric EIA for $PM_{2.5}$ permit, and how to acquire local meteorological data by combining local measurement and model prediction are required for the effective and future oriented atmospheric EIA.

Numerical Study on Warming Effect Due to Green House Gas in Microscale Atmospheric Domain (미기상규모 영역의 온실기체 승온효과에 관한 수치연구)

  • 이순환;서광수;김동희;황수진
    • Journal of Korean Society for Atmospheric Environment
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    • v.20 no.3
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    • pp.303-315
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    • 2004
  • The change of land use such as the construction of way in mountainous area and tunnel leads to the quantitative change of the greenhouse gas. This study tried to clarify the effect of the change of land use around Miryang Ice Valley on thermal environment of micro-meteorological scale by numerical experiment. We carried out several numerical experiment under different atmospheric conditions with different amount of greenhouse gases. Heating rate increased by the greenhouse gas in the ground level is average of 0.0073 K/day. And the increasing rate if smaller than the daily average heat crossing quantity.

Characteristics and Status of Persistent Organic Pollutants and Heavy Metals in Ambient Air (대기 중 잔류성 유기오염물질과 중금속의 특성과 현황)

  • 김영성
    • Journal of Korean Society for Atmospheric Environment
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    • v.19 no.2
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    • pp.113-132
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    • 2003
  • In May 2001, the Stockholm Convention on Persistent Organic Pollutants (POPs) for phasing out and eliminating POPs was signed by 90 countries at the Diplomatic Meeting in Stockholm. In 1998, three years before the Convention, the protocols on POPs and heavy metals were adopted by the United Nations Economic Commission for Europe under the Convention on Long-Range Transboundary Air Pollution. Growing attention on POPs and heavy metals during the past 10 years is primarily due to their toxicity in minute quantities. POPs and some metal compounds are even more toxic because of their bioaccumulation potentials associated with a high lipid solubility. Furthermore, owing to their persistence and semi - volatility, they are widely distributed in the environment, traveling great distances on wind and water currents. Recent international cooperation to address POPs and heavy metals has focused on these issues. Long -range transport of those pollutants are particularly concerned since Korea is located downwind of prevailing westerlies from China. In this paper, a review is provided to assess the properties, sources, emissions, and atmospheric concentrations on POPs and heavy metals.

A Study on the Observation of the Typhoons that Affected Southeastern Region of the Korean Peninsula (한반도 동남권역에 영향을 미친 태풍 관측 연구)

  • Jung, Woo-Sik;Park, Jong-Kil;Kim, Eun-Byul
    • Journal of Environmental Science International
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    • v.20 no.9
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    • pp.1191-1203
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    • 2011
  • In case of Typhoon Dianmu, the temperature, wind speed, wind direction and the rainfall per hour changed dramatically when the center of the typhoon passed through Gimhae. Such a change was commonly found in the regions where the center of the typhoon passed through but almost not in the regions far away from it. For example, in the case of Typhoon Malou where the center of the typhoon was far away from the observation site, such a phenomenon was not observed. The analysis of the vertical observation data showed that there was a little change in the wind speed and wind direction in the vertical direction in the case of Typhoon Dianmu of which center passed through Gimhae. There was a great change in the wind speed according to the height in the lower atmosphere just before the center of the typhoon approached the region. When the center of the typhoon was passing through the region, the vertical wind speed was decreased. However, the wind speed was rapidly increased again after the center of the typhoon had passed through the region. Unlike the Dianmu, the difference in the wind speed and wind direction between the upper layer and lower layer of the atmosphere was relatively great in the case of Malou.