Quantification and Clustering of Inorganic Nanoparticles in Wastewater Treatment Plants across Switzerland#
dc.contributor.author
Mehrabi, Kamyar
dc.contributor.author
Kaegi, Ralf
dc.contributor.author
Günther, Detlef
dc.contributor.author
Gundlach-Graham, Alexander
dc.date.accessioned
2021-10-25T15:25:35Z
dc.date.available
2021-10-06T13:37:36Z
dc.date.available
2021-10-25T15:25:35Z
dc.date.issued
2021-08
dc.identifier.issn
0009-4293
dc.identifier.other
10.2533/chimia.2021.642
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/508475
dc.identifier.doi
10.3929/ethz-b-000508475
dc.description.abstract
Single particle Inductively Coupled Plasma Time-of-Flight Mass Spectrometry (sp-ICP-TOFMS), in combination with online microdroplet calibration, allows the determination of particle number concentrations (PNCs) and the masses of elements in individual particles. Because sp-ICP-TOFMS analyses of environmental samples produce rich datasets composed of both single-metal nanoparticles (smNPs) and many types of multi-metal NPs (mmNPs), interpretation of these data is well suited to automated analysis schemes. Here, we present a data analysis approach that includes automatic particle detection and elemental mass determinations based on online microdroplet calibration, and unsupervised clustering analysis of mmNPs to identify unique classes of NPs based on their element compositions. To demonstrate the potential of our approach, we analyzed wastewater samples collected from the influent and effluent of five wastewater treatment plants (WWTPs) across Switzerland. We determined elemental masses in individual NPs, as well as PNCs, to estimate the NP removal efficiencies of the individual WWTPs. Through hierarchical clustering, we identified NP classes conserved across all WWTPs; the most abundant particle types were those rich in Ce-La, Fe-Al, Ti-Zr, and Zn-Cu. In addition, we found particle types that are unique to one or a few WWTPs, which could indicate point sources of anthropogenic NPs.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Swiss Chemical Society
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Clustering
en_US
dc.subject
ICP-TOFMS
en_US
dc.subject
Microdroplet calibration
en_US
dc.subject
Nanoparticle
en_US
dc.subject
Wastewater
en_US
dc.title
Quantification and Clustering of Inorganic Nanoparticles in Wastewater Treatment Plants across Switzerland#
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Chimia
ethz.journal.volume
75
en_US
ethz.journal.issue
7-8
en_US
ethz.journal.abbreviated
Chimia
ethz.pages.start
642
en_US
ethz.pages.end
646
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Toward High-Throughput Quantitative Analysis of Nanoparticle Pollution in Environmental Samples
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Bern
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03512 - Günther, Detlef / Günther, Detlef
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02608 - Institut für Umweltingenieurwiss. / Institute of Environmental Engineering::03832 - Morgenroth, Eberhard / Morgenroth, Eberhard
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03512 - Günther, Detlef / Günther, Detlef
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02608 - Institut für Umweltingenieurwiss. / Institute of Environmental Engineering::03832 - Morgenroth, Eberhard / Morgenroth, Eberhard
ethz.grant.agreementno
174061
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
Ambizione
ethz.date.deposited
2021-10-06T13:37:50Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-10-25T15:25:48Z
ethz.rosetta.lastUpdated
2024-02-02T15:11:32Z
ethz.rosetta.versionExported
true
ethz.COinS
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