스모그 챔버를 이용한 이차 초미세유기먼지의 최근 연구 동향

• Published in: 한국대기환경학회지 Vol. 32; no. 2; pp. 131 - 157
• Main Authors: 임용빈(Yong Bin Lim), 이승복(Seung-Bok Lee), 김화진(Hwajin Kim), 김진영(Jin Young Kim), 배귀남(Gwi-Nam Bae)
• Format: Journal Article
• Language: Korean
• Published: 한국대기환경학회 2016
• Subjects: 대기과학; Volatile organic compounds; Smog chamber; Aqueous chemistry; Secondary organic aerosols
• ISSN: 1598-7132; 2383-5346
• DOI: 10.5572/KOSAE.2016.32.2.131

A smog chamber has been an effective tool to study air quality, particularly secondary organic aerosol (SOA), which is typically formed by atmospheric oxidation of volatile organic compounds (VOCs). In controlled environments, smog chamber studies have validated atmospheric oxidation by identifying, quantifying and monitoring products with state-of-art instruments (e.g., aerosol mass spectrometer, scanning mobility particle sizer) and provided chemical insights of SOA formation by elucidating reaction mechanisms. This paper reviews types of smog chambers and the current state of smog chamber studies that have accomplished to find pathways of SOA formation, focusing on gas-particle partitioning of semivolatile products of VOC oxidation, heterogeneous reactions on aerosol surface, and aqueous chemistry in aerosol waters (e.g., cloud/fog droplets and wet aerosols). For future chamber studies, then, this paper discusses potential formation pathways of fine particles that East Asia countries (e.g., Korea and China) currently suffer from due to massive formation that gives rise to fatal health problems.