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The Atmospheric Fate of Organic Nitr...

Borduas, Nadine.

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The Atmospheric Fate of Organic Nitrogen Compounds = = Le sort des composes azotes dans l'atmosphere.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The Atmospheric Fate of Organic Nitrogen Compounds =/
其他題名:	Le sort des composes azotes dans l'atmosphere.
作者:	Borduas, Nadine.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2015,
面頁冊數:	206 p.
附註:	Source: Dissertation Abstracts International, Volume: 77-06(E), Section: B.
Contained By:	Dissertation Abstracts International77-06B(E).
標題:	Atmospheric chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3746569
ISBN:	9781339400174

The Atmospheric Fate of Organic Nitrogen Compounds = = Le sort des composes azotes dans l'atmosphere.
Borduas, Nadine.

The Atmospheric Fate of Organic Nitrogen Compounds =Le sort des composes azotes dans l'atmosphere. - Ann Arbor : ProQuest Dissertations & Theses, 2015 - 206 p.

Source: Dissertation Abstracts International, Volume: 77-06(E), Section: B.

Thesis (Ph.D.)--University of Toronto (Canada), 2015.

Organic nitrogen compounds are present in our atmosphere from biogenic and anthropogenic sources and have impacts on air quality and climate. Due to recent advances in instrumentation, these compounds are being detected in the gas and particle phases, raising questions as to their source, processing and sinks in the environment. With their recently identified role as contributors to aerosol formation and growth, their novel large scale use as solvents in carbon capture and storage (CCS) technology and their emissions from cigarette smoke, it is now important to address the gaps in our understanding of the fate of organic nitrogen. Experimentally and theoretically, I studied the chemical atmospheric fate of specific organic nitrogen compounds in the amine, amide and isocyanate families, yielding information that can be used in chemical transport models to assess the fate of this emerging class of atmospheric molecules.

ISBN: 9781339400174Subjects--Topical Terms:

544140
Atmospheric chemistry.

The Atmospheric Fate of Organic Nitrogen Compounds = = Le sort des composes azotes dans l'atmosphere.
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520 $a Organic nitrogen compounds are present in our atmosphere from biogenic and anthropogenic sources and have impacts on air quality and climate. Due to recent advances in instrumentation, these compounds are being detected in the gas and particle phases, raising questions as to their source, processing and sinks in the environment. With their recently identified role as contributors to aerosol formation and growth, their novel large scale use as solvents in carbon capture and storage (CCS) technology and their emissions from cigarette smoke, it is now important to address the gaps in our understanding of the fate of organic nitrogen. Experimentally and theoretically, I studied the chemical atmospheric fate of specific organic nitrogen compounds in the amine, amide and isocyanate families, yielding information that can be used in chemical transport models to assess the fate of this emerging class of atmospheric molecules.
520 $a I performed kinetic laboratory studies in a smog chamber to measure the room temperature rate coefficient for reaction with the hydroxyl radical of monoethanolamine, nicotine, and five different amides. I employed online-mass spectrometry techniques to quantify the oxidation products. I found that amines react quickly with OH radicals with lifetimes of a few hours under sunlit conditions, producing amides as oxidation products. My studies on amides revealed that they have much longer lifetimes in the atmosphere, ranging from a few hours to a week. Photo-oxidation of amides produces isocyanates and I investigated these mechanisms in detail using ab initio calculations. Furthermore, I experimentally measured isocyanic acid's Henry's Law constant as well as its hydrolysis rate constants to better understand its sinks in the atmosphere. Finally, I re-examined the structure-activity relationship (SAR) of organic nitrogen molecules for improved model parameterizations.
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