서울 여름철 내화성 블랙카본의 질량과 입경분포 분석

Translated title of the contribution: Mass Concentration and Size Distribution of Refractory Black Carbon in Seoul during Summer

Saehee Lim, Yujeong Kang, Meehye Lee, Hee Jung Yoo, Sang Sam Lee, Gun Ho Lee

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Black carbon (BC), a primary aerosol emitted by the combustion of fossil fuel and biomass, is the subject of scientific attention as its impacts on atmospheric pollution, human health and climate change. In the present study, the refractory BC (rBC) measurement method using a single particle soot photometer (SP2, DMT) was validated by developing and optimizing a precise calibration system. We measured mass and number concentrations and size distributions of ambient rBC in Seoul during 2019 summer. The mean mass and number concentrations of rBC particles were 0.58±0.32 μg m-3 and 336±190 # cm-3, respectively. The maximum count diameter of rBC was always found at around 70~80 nm, close to the lower detection limit, and the mass median diameter (MMD) of rBC was 119±5 nm on average. The elemental carbon (EC) mass concentration measured using a thermal-optical method (TOT) was 35% higher than that of rBC, which was likely associated with the differences in measured size range, refractory properties, and measurement uncertainties between two methods.

Translated title of the contributionMass Concentration and Size Distribution of Refractory Black Carbon in Seoul during Summer
Original languageKorean
Pages (from-to)713-725
Number of pages13
JournalJournal of Korean Society for Atmospheric Environment
Volume35
Issue number6
DOIs
Publication statusPublished - 2019 Dec

Bibliographical note

Publisher Copyright:
© 2019, Journal of Korean Society for Atmospheric Environment.All Rights Reserved.

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Environmental Science (miscellaneous)
  • Pollution

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