Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Tropospheric Ozone Patterns in the Metropolitan Seoul Area During 1990~1997 Using Two Ozone Indices of Accumulation over the Threshold Concentrations

한계농도 누적 오존지표로 본 1990~1997년의 수도권 오존농도 변화

  • Published : 1999.08.01
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Abstract

In order to assess the chronic impact of tropospheric ozone on vegetation in the Seoul metropolitan area, it is necessary to quantify ozone exposure. Two ozone indices commonly used to relate ozone exposure to injury of vegetation were calculated. SUM06(SUM of hourly concentrations at or above 0.06 ppm) and AOT40(Accumulated exposure Over a Threshold of 40 ppb) which are widely used as ozone indices in the US and Europe were calculated based on hourly ozone concentrations in 5 areas of Seoul and 5 cities of Kyunggido during 1990~1997. Most SUM06 levels were 1~5ppm.hr, however several areas in Northern and Eastern Seoul reached about 5~7 ppm.hr in 1996~1997. AOT40 values were as high as 17~24 ppm.hr. Although measured SUM06 levels would not be expected to significantly impact vegetation, the overall ozone index, as well as annual average, 95th, and 99th percentile have increased continuously over the last 8 years. Often, ozone concentrations are lower in cities where there is a significant NOx concentration, than in outlying rural agricultural areas where NOx scrubbing is not as important. Concentrations greater than 40 ppb, which can cause chronic ozone toxicity to vegetation, were found mostly in the summer and constitutued about 5~15% of total hourly ozone cocentrations.

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References

  1. 한국대기보전학회지 v.13 no.1 1990~1995 서울, 수도권 지역의 광화학 오염현상 김영성
  2. 한국대기환경학회지 v.15 no.2 오존 자동측정망 및 자료 중의 이상치 점검 김영성
  3. 한국대기보전학회지 v.11 no.3 청정지역과 도시지역의 오존농도 특성연구 서명식;박경윤;이호근;장광미;강창희;허철구;김영준
  4. 한국대기보전학회지 v.11 no.1 충북 청원군에서 관측된 지표면 부근의 오존 윤마영;정용승
  5. 한국대기보전학회지 v.7 no.3 서울 수도권 지역의 광화학 오존에 관한 연구 정용승;정재섭
  6. 한국대기환경학회지 v.15 no.2 오존대기 환경기준의 비교 연구 허정숙;김태오;김동술
  7. Agri Ecosyst & Environ. v.57 A time concentration study on the effects of ozone on spring wheat(Triticum aestivum L.); 2. A comparison of indices Finnan J. M.;M. B. Jones;J. I. Burke
  8. Physiological processes and plant responses to ozone exposure, in Forest decline and ozone: A comparison of controlled chamber and field experiments Heath,R.L.;G.E.Taylor;R.L.Heath;(ed.)
  9. Proceeding of 4th US/Dutch International symposium: Comparative Risk Analysis and Priority Selting for Air Pollution Issues An approach for characterizing tropospheric ozone risk to forests Hogsett W. E.;A. Heistrom;J. A. Lauence;J. E. Weber;E. H. Lee;D. Tingey
  10. Environ. Pollut. v.53 Evaluation of ozone exposure indiees in exposure-response modeling Lee E. H.;D. T. Tingey;W. E. Hogsett
  11. Atmos. Environ. v.21 Establishing standards to protect vegetation-ozone exposure/dose considerations Lefohn,A.S.;V.C.Runeckles
  12. Atmos. Environ. v.22 A comparison of indices that describe the relationship between exposure to ozone and reduction in the yield of agricultural crop Leiolm,A.S.;J.A.Laurence;R.J.Kohut
  13. Atmos. Environ. v.26 The characterization and comparison of ozone exposure indices used in assessing the response of loblolly pine to ozone Lefohn A. S.;D. S. Shadwick;M. C. Somerville;A. H. Chappelka;B. G. Lockaby;R. S. Meldahl
  14. Angew Bot v.69 Ambient ozone and adverse crop response, An evaluation of North American and Europcan data as they related to exposure indiees and critical levels Legge A. H.;L. Grunhage;M. Nosal;H. J. Jager;S. V. Krupa
  15. J. Air & Waste Manage Assoc. v.44 Ozone descriptors for an alt quality standard to protect Vegetation Musselman R. C.;P. M. McCool;A. S. Lefohn
  16. Air quality criteria for ozone and other photo chemical oxidants EPA-600/8~84/020cF National Center for Environmental Assessment USEPA
  17. EPA-600/8-84/020cF National Center for Environmental Assessment Air quality critens for ozone and other photochemical oxidants USEPA
  18. Trec Physiol. v.9 Modeling changes in red spruce carbon balance and allocation in response to interacting ozone and nutrient stresses Weinstein D. A.;R. M. Belom;R. D. Yanai
  19. Cornell University Ph. D. Dissertation Studies of the pathological ecophysiological and biochemical responses of two aspen clones to chronic and dynamic ozone exposures Yun S. C.
  20. Cornell University Ph. D. Dissertation Studies of the pathological ecophysiogical and biochemical responses of two aspen clones to chronic and dynamic ozone exposures Yun,S.C.