A Passive Air Sampling Technique For Ultra-Trace Quantitation Of Gas-Phase Perfluoroalkyl Carboxylic Acids

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dc.contributor.advisorVandenBoer, Trevor
dc.contributor.advisorYoung, Cora
dc.contributor.authorVanhauwaert, Eric
dc.date.accessioned2024-11-07T11:05:45Z
dc.date.available2024-11-07T11:05:45Z
dc.date.copyright2024-06-13
dc.date.issued2024-11-07
dc.date.updated2024-11-07T11:05:44Z
dc.degree.disciplineChemistry
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractPerfluoroalkyl carboxylic acids (PFCAs) are persistent chemicals distributed ubiquitously in the environmental despite their anthropogenic origin. Recent studies have shown that atmospheric transport is an important transport mechanism for PFCAs. Despite this, measuring mixing ratios of gaseous PFCAs in the atmosphere has been an analytical challenge, limiting the availability of atmospheric measurements. A new nylon-based passive air sampling (PAS) technique addresses many of these challenges by offering a cost effective, low-labour solution. These samplers were calibrated for trifluoroacetic acid (TFA) in an atmospheric chamber and field measurements were compared to measurements from an ambient ion monitoring ion chromatography mass spectrometer, where good agreement was found. They were also deployed in various locations in Canada for gas-phase PFCA measurements which revealed many different trends, including the wastewater treatment plant as a point source of gas-phase TFA. These measurements have enhanced our understanding of PFCAs with calibrated, cost-effective samplers capable of ultra-trace measurements.
dc.identifier.urihttps://hdl.handle.net/10315/42427
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectAtmospheric chemistry
dc.subjectAnalytical chemistry
dc.subjectChemistry
dc.subject.keywordsAtmosphere
dc.subject.keywordsChemistry
dc.subject.keywordsPassive samplers
dc.subject.keywordsNylon
dc.subject.keywordsAtmospheric chamber
dc.subject.keywordsCalibration
dc.subject.keywordsPFCA
dc.subject.keywordsIon chromatography
dc.subject.keywordsUltra-trace
dc.subject.keywordsPollutant
dc.titleA Passive Air Sampling Technique For Ultra-Trace Quantitation Of Gas-Phase Perfluoroalkyl Carboxylic Acids
dc.typeElectronic Thesis or Dissertation

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