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dc.contributor.authorAl Saify, Insam
dc.contributor.authorCioni, Lara
dc.contributor.authorvan Mourik, Louise M.
dc.contributor.authorBrandsma, Sicco H.
dc.contributor.authorWarner, Nicholas Alexander
dc.date.accessioned2021-07-08T07:51:09Z
dc.date.available2021-07-08T07:51:09Z
dc.date.issued2021-02-23
dc.description.abstractAn optimized low volume sampler was developed to determine both gas- and particle bound concentrations of short and medium-chain chlorinated paraffins (S/MCCPs). Background contamination was limited by the sampler design, providing method quantification limits (MQLs) at least two orders of magnitude lower than other studies within the gas (MQL: 500 pg (ΣSCCPs), 1.86 ng (ΣMCCPs)) and particle (MQL: 500 pg (ΣSCCPs), 1.72 ng (ΣMCCPs) phases. Good repeatability was observed between parallel indoor measurements (RSD ≤ 9.3% (gas), RSD ≤ 14% (particle)) with no breakthrough/saturation observed after a week of continuous sampling. For indoor air sampling, SCCPs were dominant within the gas phase (17 ± 4.9 ng/m<sup>3</sup>) compared to MCCPs (2.7 ± 0.8 ng/m<sup>3</sup>) while the opposite was observed in the particle bound fraction (0.28 ± 0.11 ng/m<sup>3</sup> (ΣSCCPs) vs. 2.7 ± 1.0 ng/m<sup>3</sup> (ΣMCCPs)). Only SCCPs in the gas phase could be detected reliably during outdoor sampling and were considerably lower compared to indoor concentrations (0.27 ± 0.10 ng/m<sup>3</sup>). Separation of the gas and particle bound phase was found to be crucial in applying the appropriate response factors for quantification based on the deconvoluted S/MCCP sample profile, thus avoiding over- (gas phase) or underestimation (particle phase) of reported concentrations. Very short chain chlorinated paraffins (vSCCPs, C5-C9) were also detected at equal or higher abundance compared to SCCP congener groups (C10-C13) congener groups, indicating an additional human indoor inhalation risk.en_US
dc.identifier.citationAl Saify, Cioni L, van Mourik, Brandsma SH, Warner Na. Optimization of a low flow sampler for improved assessment of gas and particle bound exposure to chlorinated paraffins. Chemosphere. 2021;275en_US
dc.identifier.cristinIDFRIDAID 1898118
dc.identifier.doi10.1016/j.chemosphere.2021.130066
dc.identifier.issn0045-6535
dc.identifier.issn1879-1298
dc.identifier.urihttps://hdl.handle.net/10037/21832
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalChemosphere
dc.relation.projectIDNILU - Norsk institutt for luftforskning: 117031en_US
dc.relation.projectIDEU: Erasmus+en_US
dc.relation.projectIDFramsenteret: 481/762019en_US
dc.relation.projectIDNorges forskningsråd: CleanArcticen_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/?/117031/Norway/Arctic, the herald of Chemical Substances of Environmental Concern/CleanArctic/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400en_US
dc.titleOptimization of a low flow sampler for improved assessment of gas and particle bound exposure to chlorinated paraffinsen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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