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Mixing state of size selected submicronmeter particles during photochemical and combustion events measured with the tandem system

Cited 2 time in scopus
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Title
Mixing state of size selected submicronmeter particles during photochemical and combustion events measured with the tandem system
Other Titles
Tandem 시스템을 이용한 광화학과 연소 이벤트 기간중 관측된 입자의 혼합상태
Authors
Shila Maskey
Kim, Jaeseok
Park, Kihong
Yoon, Young Jun
Subject
Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
Keywords
aerosol; tandem system
Issue Date
2013
Publisher
Taylor
Citation
Shila Maskey, et al. 2013. "Mixing state of size selected submicronmeter particles during photochemical and combustion events measured with the tandem system". AEROSOL SCIENCE AND TECHNOLOGY, 47: 746-754.
Abstract
A hygroscopicity tandem differential mobility analyzer (HTDMA) system with a thermodenuder (heated tube and charcoal absorber) was applied to determine mixing state of atmospheric ultrafine particles at urban Gwangju in Korea when ultrafine particle events were produced. Core-shell mixing state was determined by indentifying existence of non-volatile core after removing volatile species with increasing temperature up to ~250 oC. Data showed that in the combustion event ultrafine particles exist as core-shell mixture (i.e., non-volatile core coated with some volatile species) while in the photochemical event there was no such non-volatile core. particle events were produced. Core-shell mixing state was determined by indentifying existence of non-volatile core after removing volatile species with increasing temperature up to ~250 oC. Data showed that in the combustion event ultrafine particles exist as core-shell mixture (i.e., non-volatile core coated with some volatile species) while in the photochemical event there was no such non-volatile core.
URI
http://repository.kopri.re.kr/handle/201206/6366
DOI
http://dx.doi.org/10.1080/02786826.2013.789822
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