한국입자에어로졸학회지 (Particle and aerosol research)

  • 제19권1호
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  • Pages.13-20
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  • 2023
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  • 1738-8716(pISSN)
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  • 2287-8130(eISSN)
한국입자에어로졸학회 (Korean Association for Particle and Aerosol Research)
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PM10 연속자동측정기(β-ray) 등가성평가 및 비교관측 연구

PM10 β-ray attenuation samplers (β-ray absorption method) equivalence evaluation and comparatively observed study

  • 정원석 (국립기상과학원 기후연구부) ;
  • 고희정 (국립기상과학원 기후연구부) ;
  • 서원익 (국립기상과학원 기후연구부) ;
  • 정지영 (국립기상과학원 기후연구부) ;
  • 오상민 (국립기상과학원 기후연구부) ;
  • 부경온 (국립기상과학원 기후연구부)
  • WonSeok Jung (Climate Research Department, National Institute of Meteorological Sciences) ;
  • Hee-Jung Ko (Climate Research Department, National Institute of Meteorological Sciences) ;
  • Wonick Seo (Climate Research Department, National Institute of Meteorological Sciences) ;
  • Jiyoung Jeong (Climate Research Department, National Institute of Meteorological Sciences) ;
  • Sang Min Oh (Climate Research Department, National Institute of Meteorological Sciences) ;
  • Kyung-On Boo (Climate Research Department, National Institute of Meteorological Sciences)
  • 투고 : 2023.02.21
  • 심사 : 2023.03.22
  • 발행 : 2023.03.31
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초록

The Asian dust observation network operates β-ray attenuation samplers to measure PM10 concentrations. In addition, equivalence evaluation and accuracy inspection(Precision Tests) are conducted every year for the reliability of data. β-ray attenuation samplers(16 units) were comparatively observed from May to June 2020 and from July to December 2021. During the observation period, the average daily temperature was the lowest at 6.4℃ in December and the highest at 27.3℃ in August. The average daily humidity ranged from 60% to 100%, but the average daily humidity was over 75% from July to September. The minimum value of the PM10 Gravimetric method was 5.0 ㎍/m3, the maximum value was 53.4 ㎍/m3, and the average value was 17.8 ㎍/m3. The equivalence evaluation results of the PM10 Gravimetric method and β-ray attenuation samplers satisfied the criteria (slope: 1±0.1, intercept: 0±0.5). A relative error analysis between the PM10 Gravimetric method and β-ray attenuation samplers equipment showed that the relative error increased when the concentration was low and the temperature and humidity were high. In addition, in the β-ray attenuation samplers 5-minute interval observation data in May 2020, a relatively large Standard devication was shown as an average maximum ±23.4 ㎍/m3 and a minimum ±15.2 ㎍/m3. At standard deviations of 10% and 90%, equipment with high variability (deviation) was measured at 6 ㎍/m3and 61 ㎍/m3, and equipment with low variability was measured at 12 ㎍/m3 and 47 ㎍/m3. It was confirmed that concentration differences occurred due to differences in variability for each equipment.

키워드

과제정보

본 연구는 기상청 국립기상과학원 「기상업무지원기술개발」, '황사·연무 감시 및 예보 기술 개발(KMA2018-00521)'의 지원으로 수행되었습니다.

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