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Water-soluble organic gases in residential indoor air and the potential for aqueous chemistry indoors to alter exposures
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Title
Water-soluble organic gases in residential indoor air and the potential for aqueous chemistry indoors to alter exposures
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Duncan
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Sara
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Sara Duncan
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author
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Barbara
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Barbara Turpin
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Advisory Committee
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chair
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Weisel
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Clifford
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Clifford Weisel
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Advisory Committee
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internal member
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Mainelis
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Gediminas
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Gediminas Mainelis
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Advisory Committee
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internal member
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Weschler
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Charles
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Charles Weschler
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Advisory Committee
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outside member
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Rutgers University
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degree grantor
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School of Graduate Studies
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theses
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2018
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2018-05
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2018
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xx
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eng
Abstract
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Dampness occurs in 18 to 50% of homes in the United States and is associated with negative health effects. Currently, mold and mildew only partially explain these health outcomes (Mendell et al., 2011). Could aqueous chemistry indoors play a role? This dissertation explores the presence of water-soluble organic gases (WSOGs) indoors. Which WSOGs have already been reported? Which WSOGs are expected to be present indoors? How will aqueous chemistry on surfaces, in particles, and elsewhere indoors affect indoor chemistry? First, the literature was searched for previously measured WSOG. Additional WSOG likely to be present from direct emission sources indoors as well as WSOG formed from gas-phase oxidation chemistry were proposed. Then, using knowledge of aqueous chemistry in outdoor air and the current understanding of indoor chemistry, the plausibility of aqueous chemistry to occur indoors was postulated. Integrated samples of WSOGs were collected inside and directly outside thirteen homes. WSOGs were found to be on average 15 times higher indoors than outdoors (Duncan et al., 2018), meaning most WSOGs are emitted or formed indoors. About 50% of this WSOG can be attributed to formic, acetic, and lactic acids. The rest consists of iii 67% CHO, 11% CHN, 11% CHON, and 11% sulfur-, phosphorus-, or chlorinecontaining compounds. WSOGs were also measured in real time in one home. Acetic and formic acids were found to decrease 30 – 50% at the onset of the central air conditioner cycling on. Lactic acid strongly correlated with human occupancy and cooking. Several other compounds were characterized on the molecular level that also cycled with the air conditioner. Measurements were also taken briefly outside the home which illuminated that some compounds had primarily indoor sources while others had primarily outdoor sources. Dose estimates were calculated for WSOG and found that infants and young children will receive elevated doses compared to adults under the same conditions. Subsequent health implications were discussed. Recent advancements in the field of indoor chemistry were provided, and future directions of research proposed. Ultimately, this work furthers our understanding of indoor chemistry and therefore exposure and may provide future insights into observed negative health effects in homes.
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Topic
Environmental Sciences
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Rutgers University Electronic Theses and Dissertations
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ETD_8868
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electronic resource
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1 online resource (xiv, 186 p. : ill.)
Note
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Ph.D.
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Includes bibliographical references
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by Sara Duncan
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School of Graduate Studies Electronic Theses and Dissertations
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rucore10001600001
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doi:10.7282/T3ZS30ZD
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ETD doctoral
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Rights
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The author owns the copyright to this work.
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Duncan
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Sara
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Permission or license
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2018-04-12 14:39:01
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Sara Duncan
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Rutgers University. School of Graduate Studies
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Author Agreement License
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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2018-05-31
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2019-06-06
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Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after June 6th, 2019.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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