한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제25권6호
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  • Pages.571-578
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  • 2009
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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광주 도심지역에서 측정한 Aethalometer 검댕입자 자료의 보정

Compensation of Aethalometer Black Carbon Data Observed at a Gwangju Site

  • Park, Seung-Shik (Department of Environmental Engineering, Chonnam National University) ;
  • Jung, Jung-H. (Department of Environmental Engineering, Chonnam National University) ;
  • Cho, Sung-Y. (Department of Environmental Engineering, Chonnam National University) ;
  • Kim, Seung-Jai (Department of Environmental Engineering, Chonnam National University)
  • 발행 : 2009.12.31
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초록

$PM_{2.5}$ black carbon (BC) concentrations were measured to investigate the filter spot loading effect in raw BC data at 5-minute time-based resolution using a single-wavelength aethalometer at a Gwangju site. Also the elemental carbon (EC) concentrations from 24-hr integrated filter-based measurements of $PM_{2.5}$ particles were determined to compare with the loading compensated BC values. Close examination of the time-series BC data showed clearly the "gaps" when the filter tape advances, suggesting the correction of raw BC data. Therefore, we calculated the average BC concentration in each range of attenuation (ATN) to decide if there was (or was not) an effect on the aethalometer data according to the loading of the filter spot. A consistent decrease of average BC concentration was found with increasing ATN values for every month, suggesting there was a consistent "spot loading effect" in the raw BC data. The loading compensated BC concentration according to a simple compensation model with loading effect was 1.01~1.15 times greater than the raw BC data. The 24-hr average concentration of EC observed during summer sampling period was about 3% higher than the original 24-hr average BC value and 2% lower than the loading compensated BC concentration.

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피인용 문헌

  1. Observed in Gwangju for Year 2008 and Examination of Filter Loading Effect vol.26, pp.4, 2010, https://doi.org/10.5572/KOSAE.2010.26.4.392
  2. Characteristics of Black Carbon Particles in Ambient Air Using a Single Particle Soot Photometer (SP2) in May 2013, Jeju, Korea vol.31, pp.3, 2015, https://doi.org/10.5572/KOSAE.2015.31.3.255
  3. A Study of Black Carbon Measurement in Metropolitan Area and Suburban Area of the Korean Peninsula Performed during Pre KORea-US Air Quality Study (KORUS-AQ) Campaign vol.31, pp.5, 2015, https://doi.org/10.5572/KOSAE.2015.31.5.472
  4. Corrections and Artifacts Regarding Filter-based Measurements of Black Carbon vol.34, pp.4, 2018, https://doi.org/10.5572/KOSAE.2018.34.4.610