dc.contributor.author | Al Saify, Insam | |
dc.contributor.author | Cioni, Lara | |
dc.contributor.author | van Mourik, Louise M. | |
dc.contributor.author | Brandsma, Sicco H. | |
dc.contributor.author | Warner, Nicholas Alexander | |
dc.date.accessioned | 2021-03-16T08:30:36Z | |
dc.date.available | 2021-03-16T08:30:36Z | |
dc.date.created | 2021-03-15T13:15:40Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0045-6535 | |
dc.identifier.uri | https://hdl.handle.net/11250/2733525 | |
dc.description.abstract | An 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/m3) compared to MCCPs (2.7 ± 0.8 ng/m3) while the opposite was observed in the particle bound fraction (0.28 ± 0.11 ng/m3 (ΣSCCPs) vs. 2.7 ± 1.0 ng/m3 (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/m3). 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.language.iso | eng | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Optimization of a low flow sampler for improved assessment of gas and particle bound exposure to chlorinated paraffins | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2021 The Author(s). Published by Elsevier Ltd. | en_US |
dc.source.volume | 275 | en_US |
dc.source.journal | Chemosphere | en_US |
dc.identifier.doi | 10.1016/j.chemosphere.2021.130066 | |
dc.identifier.cristin | 1898118 | |
dc.relation.project | NILU - Norsk institutt for luftforskning: 117031 | en_US |
dc.relation.project | EU/Erasmus+ | en_US |
dc.relation.project | Framsenteret: 481/762019 | en_US |
dc.relation.project | Norges forskningsråd: CleanArctic | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |