Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer

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 moni...

Full description

Bibliographic Details
Main Authors:	Markus Furger, Pragati Rai, Jay G. Slowik, Junji Cao, Suzanne Visser, Urs Baltensperger, André S.H. Prévôt
Format:	Article
Language:	English
Published:	Elsevier 2020-01-01
Series:	Atmospheric Environment: X
Online Access:	http://www.sciencedirect.com/science/article/pii/S2590162120300046

id	doaj-d7200de00ac44e8db19f16c530cb4908
record_format	Article
spelling	doaj-d7200de00ac44e8db19f16c530cb49082020-11-25T00:31:48ZengElsevierAtmospheric Environment: X2590-16212020-01-015Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometerMarkus Furger0Pragati Rai1Jay G. Slowik2Junji Cao3Suzanne Visser4Urs Baltensperger5André S.H. Prévôt6Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen PSI, Switzerland; Corresponding author.Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen PSI, SwitzerlandLaboratory of Atmospheric Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen PSI, SwitzerlandKey Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, ChinaCentre for Environmental Quality, National Institute for Public Health and the Environment, 3720 BA, Bilthoven, the NetherlandsLaboratory of Atmospheric Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen PSI, SwitzerlandLaboratory of Atmospheric Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen PSI, SwitzerlandMeasuring 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. Keywords: Aerosol sampling, X-ray fluorescence (XRF) spectrometry, Inlet, Online analysis, Particulate matter, Dusthttp://www.sciencedirect.com/science/article/pii/S2590162120300046
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Markus Furger Pragati Rai Jay G. Slowik Junji Cao Suzanne Visser Urs Baltensperger André S.H. Prévôt
spellingShingle	Markus Furger Pragati Rai Jay G. Slowik Junji Cao Suzanne Visser Urs Baltensperger André S.H. Prévôt Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer Atmospheric Environment: X
author_facet	Markus Furger Pragati Rai Jay G. Slowik Junji Cao Suzanne Visser Urs Baltensperger André S.H. Prévôt
author_sort	Markus Furger
title	Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer
title_short	Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer
title_full	Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer
title_fullStr	Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer
title_full_unstemmed	Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer
title_sort	automated alternating sampling of pm10 and pm2.5 with an online xrf spectrometer
publisher	Elsevier
series	Atmospheric Environment: X
issn	2590-1621
publishDate	2020-01-01
description	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. Keywords: Aerosol sampling, X-ray fluorescence (XRF) spectrometry, Inlet, Online analysis, Particulate matter, Dust
url	http://www.sciencedirect.com/science/article/pii/S2590162120300046
work_keys_str_mv	AT markusfurger automatedalternatingsamplingofpm10andpm25withanonlinexrfspectrometer AT pragatirai automatedalternatingsamplingofpm10andpm25withanonlinexrfspectrometer AT jaygslowik automatedalternatingsamplingofpm10andpm25withanonlinexrfspectrometer AT junjicao automatedalternatingsamplingofpm10andpm25withanonlinexrfspectrometer AT suzannevisser automatedalternatingsamplingofpm10andpm25withanonlinexrfspectrometer AT ursbaltensperger automatedalternatingsamplingofpm10andpm25withanonlinexrfspectrometer AT andreshprevot automatedalternatingsamplingofpm10andpm25withanonlinexrfspectrometer
_version_	1725322329589809152

Automated alternating sampling of PM10 and PM2.5 with an online XRF spectrometer

Similar Items