Evaluation of Analytical Techniques for Some Gaseous Criteria Pollutants through a Field Measurement Campaign in Seoul, Korea

현장측정에 기초한 대기오염물질의 측정방식에 대한 비교연구-주요 기준성 오염물질을 중심으로

  • 김세웅 (서울대학교 해양학과) ;
  • 김기현 (세종대학교 지구과학과 대기환경연구실) ;
  • 김진석 (한국표준과학연구원 물질량표준부) ;
  • 이강웅 (한국외국어대학교 환경학과) ;
  • 김경렬 (서울대학교 해양학과) ;
  • 문동민 (한국표준과학연구원 물질량표준부) ;
  • 김필수 (한양대학교 물리학과) ;
  • 손동헌 (중앙대학교 약학대학)
  • Published : 1999.08.01

Abstract

To properly assess air pollution levels, application of quality assurance and quality control(QA/QC) is believed to be an essential step. In order to cope with such scientific principle, a field study was designed with an aim of comparing: 1) the methods of calibration for airborne pollutants and 2) the protocols developed for their measurements. Measurements were made at Han Yang University, Seoul during 29 May through 1 June 1998 under the management of the Division of Measurements and Analysis(DMA) of Korean Society for Atmospheric Environment(KOSAE). In this work, we report our results of intercomparative measurements on several gaseous criteria pollutants that were investigated mainly by the two institutes-Seoul National University(SNU) and the Korean Research Institute for Standards and Science(KRISS). Although measurements of major gaseous pollutants had been made routinely by many scientific institutes and organizations in Korea, most scientists involved in those studieswere obliged to do their experiments on the basis of their own procedural steps spaning from the preparation of gaseous standards to the methodological selections for the calibration. Hence, this campaign offered a unique opportunity to examine many important aspects on the measurements of these important gaseous pollutants. In the course of our study, we investigated the compatibility of data sets obtained by the two institutes in concert with reference data sets collected concurrently from a government-managed monitoring station. On the basis of our study, we conclude that different data sets made by different participants during this campaign agree well within the reasonable range of uncertainties.low, which indicated that during this period the potential acidity of precipitation was high but the neutralizing capacity was low. For Spring, pAi was very low but pH was slightly high. This was likely due to the large amount of $CaCO_3$ in the soil particles transported over a long range from the Chinese continent that were incorporated into the precipitation, and then neutralized the acidifying species with its high concentraton.

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