气候变化领域集成服务门户(CCPortal): Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer

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DOI	10.1016/j.aeaoa.2020.100065
	Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer
	Furger M.; Rai P.; Slowik J.G.; Cao J.; Visser S.; Baltensperger U.; Prévôt A.S.H.
发表日期	2020
ISSN	25901621
卷号	5
英文摘要	Measuring the chemical composition of ambient particulate matter in different size classes is a relevant gain in information, which can be used for improved source apportionment. The design and implementation of a switching system between a PM10 and a PM2.5 inlet for an Xact 625i ambient metals monitor is presented. First applications in the field reveal its practicability and applicability to determine the PM2.5/PM10 ratio. For example, in Beijing crustal elements such as Si, Ca, or Ti occur mainly in the coarse fraction (ratio < 0.2), whereas combustion related elements such as Se, Pb or As are found mainly in the fine fraction (ratio > 0.8). Simulations of the uncertainty caused by alternating sampling of the two size classes show that the increase of uncertainty is within acceptable limits, depending on the characteristics of the time series. The gain in information outweighs the increase of uncertainty in most cases. © 2020 The Authors
英文关键词	Aerosol sampling; Dust; Inlet; Online analysis; Particulate matter; X-ray fluorescence (XRF) spectrometry
语种	英语
来源期刊	Atmospheric Environment: X
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120896
作者单位	Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI5232, Switzerland; Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; Centre for Environmental Quality, National Institute for Public Health and the Environment, Bilthoven, 3720 BA, Netherlands
推荐引用方式 GB/T 7714	Furger M.,Rai P.,Slowik J.G.,et al. Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer[J],2020,5.
APA	Furger M..,Rai P..,Slowik J.G..,Cao J..,Visser S..,...&Prévôt A.S.H..(2020).Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer.Atmospheric Environment: X,5.
MLA	Furger M.,et al."Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer".Atmospheric Environment: X 5(2020).