Evaluation of the Oxidation Flow Reactor for particulate matter emission limit certification

doi:10.1016/j.atmosenv.2019.117086

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Evaluation of the Oxidation Flow Reactor for particulate matter emission limit certification
	Cao, Junji 2,3; Wang, Qiyuan 2,3; Li, Li 2; Zhang, Yue 4; Tian, Jie 2,3; Chen, L. W. Antony 5; Ho, Steven Sai Hang 1,6; Wang, Xiaoliang 6; Chow, Judith C.2,6; Watson, John G.2,6
刊名	ATMOSPHERIC ENVIRONMENT
	2020-03-01
卷号	224 页码:10
关键词	Source characterization Aerosol aging Multipollutant Emission factors Hydroxyl exposure
ISSN号	1352-2310
DOI	10.1016/j.atmosenv.2019.117086
通讯作者	Cao, Junji(jjcao@ieecas.cn)
英文摘要	As secondary aerosols become larger fractions of ambient PM2.5, emission factors and source profiles need to reflect the photochemical aging of multipollutant emissions that account for changes in transport between source and receptor. Oxidation Flow Reactors (OFR) intend to simulate gas/particle transformation and volatilization with time-scales of hours to days in order to estimate mass gains or losses due to atmospheric aging. The commercially-available Potential Aerosol Mass (PAM)-OFR (Aerodyne Research, LLC, Billerica, MA, USA) is evaluated for its feasibility in establishing an emission limit certification protocol for China and for determining changes to source marker abundances used in source apportionment model applications. The OFR without ultraviolet radiation is reasonably inert to the passage of reactive gases, such as sulfur dioxide (SO2), and particles >similar to 100 nm. The largest uncertainty in estimating aging times is the commonly used assumption that the average atmospheric hydroxyl concentration (OHatm) is 1.5 x 10(6) molecules/cm(3); measurements show that OHatm can vary by an order of magnitude in different environments. OH exposures (OFE,) estimated within the OFR are more precise than this assumption. Plug flow is a reasonable estimate of residence time within the OFR, as it does not differ much from the weighted-mean of the residence time distribution. A survey of previous studies shows that only a few examine the PAM-OFR performance, and that mass is both gained and lost with aging, depending on the combustion fuels, burning conditions, and aging times. At present, the OFR appears to be more practical for source profile aging than for emission certification, and further experiments are needed prior to application for multipollutant effects on particulate emission rates.
资助项目	National Science Foundation (NSF)[AGS1464501] ; Desert Research Institute, Reno, NV, USA ; National Atmospheric Research Program[2017YFC0212200] ; National Research Program for Key Issues in Air Pollution Control in China[DQGG0105]
WOS关键词	SECONDARY ORGANIC AEROSOL ; HETEROGENEOUS OXIDATION ; SOURCE APPORTIONMENT ; PARTICLE EMISSIONS ; HYDROXYL RADICALS ; OH REACTIVITY ; BLACK CARBON ; MASS ; PHOTOOXIDATION ; CHEMISTRY
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000525865300001
资助机构	National Science Foundation (NSF) ; Desert Research Institute, Reno, NV, USA ; National Atmospheric Research Program ; National Research Program for Key Issues in Air Pollution Control in China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12595]
专题	地球环境研究所_粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Cao, Junji
作者单位	1.Hong Kong Premium Serv & Res Lab, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 4.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China 5.Univ Nevada, Dept Environm & Occupat Hlth, Las Vegas, NV 89154 USA 6.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
推荐引用方式 GB/T 7714	Cao, Junji,Wang, Qiyuan,Li, Li,et al. Evaluation of the Oxidation Flow Reactor for particulate matter emission limit certification[J]. ATMOSPHERIC ENVIRONMENT,2020,224:10.
APA	Cao, Junji.,Wang, Qiyuan.,Li, Li.,Zhang, Yue.,Tian, Jie.,...&Watson, John G..(2020).Evaluation of the Oxidation Flow Reactor for particulate matter emission limit certification.ATMOSPHERIC ENVIRONMENT,224,10.
MLA	Cao, Junji,et al."Evaluation of the Oxidation Flow Reactor for particulate matter emission limit certification".ATMOSPHERIC ENVIRONMENT 224(2020):10.