Improvements to the Measurement of Atmospheric Reactive Mercury, and Contributions to the Investigation of Reactive Mercury at Six Sampling Sites
Mercury (Hg) is a globally transported hazardous pollutant. In the atmosphere, reactive mercury (RM), composed of gaseous oxidized and particulate-bound Hg, comprises the minority of Hg fractions, but contributes significantly to wet and dry deposition. Unfortunately, the standard instrument used fo...
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ftunivnevadair:oai:scholarworks.unr.edu:11714/9759 2023-07-23T04:13:16+02:00 Improvements to the Measurement of Atmospheric Reactive Mercury, and Contributions to the Investigation of Reactive Mercury at Six Sampling Sites Allen, Natalie Rose Gustin, Mae S Dunham-Cheatham, Sarrah Arnott, Patrick 2023-06-30T10:12:23Z PDF http://hdl.handle.net/11714/9759 unknown http://hdl.handle.net/11714/9759 Creative Commons Attribution 4.0 United States https://creativecommons.org/licenses/by/4.0/ Author(s) atmospheric mercury atmospheric sampling cation exchange membrane environmental science mercury UNR-RMAS Thesis 2023 ftunivnevadair 2023-07-02T16:39:02Z Mercury (Hg) is a globally transported hazardous pollutant. In the atmosphere, reactive mercury (RM), composed of gaseous oxidized and particulate-bound Hg, comprises the minority of Hg fractions, but contributes significantly to wet and dry deposition. Unfortunately, the standard instrument used for the past twenty years has been shown to inaccurately measure atmospheric RM. Therefore, the University of Nevada, Reno – Reactive Mercury Active System (RMAS) was developed to improve measurements of RM concentrations, in addition to identification of the chemistry of RM compounds, which was previously impossible. The work presented in this thesis focused on investigating the impact of flow rates on RMAS RM collection and whether the RMAS cartridge that holds membranes collected RM. In addition, alternate surfaces for RM collection were tested. The results of this work are presented in Chapter 2. Chapter 3 summarizes contributions made to a multi-year field campaign aimed at collecting RM using the RMAS at: Amsterdam Island, Indian Ocean; Atlanta, GA; the Great Salt Lake, UT; Guadalupe Mountains National Park, TX; and Reno, NV and the adjacent Peavine Peak. Chapter 3 was focused on understanding the chemistry and concentrations of RM at locations with different ambient air chemistry. Lastly, in Chapter 4, the thesis work was summarized, and the direction of future work discussed. Thesis Amsterdam Island University of Nevada, Reno: ScholarWorks Repository Indian |
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University of Nevada, Reno: ScholarWorks Repository |
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topic |
atmospheric mercury atmospheric sampling cation exchange membrane environmental science mercury UNR-RMAS |
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atmospheric mercury atmospheric sampling cation exchange membrane environmental science mercury UNR-RMAS Allen, Natalie Rose Improvements to the Measurement of Atmospheric Reactive Mercury, and Contributions to the Investigation of Reactive Mercury at Six Sampling Sites |
topic_facet |
atmospheric mercury atmospheric sampling cation exchange membrane environmental science mercury UNR-RMAS |
description |
Mercury (Hg) is a globally transported hazardous pollutant. In the atmosphere, reactive mercury (RM), composed of gaseous oxidized and particulate-bound Hg, comprises the minority of Hg fractions, but contributes significantly to wet and dry deposition. Unfortunately, the standard instrument used for the past twenty years has been shown to inaccurately measure atmospheric RM. Therefore, the University of Nevada, Reno – Reactive Mercury Active System (RMAS) was developed to improve measurements of RM concentrations, in addition to identification of the chemistry of RM compounds, which was previously impossible. The work presented in this thesis focused on investigating the impact of flow rates on RMAS RM collection and whether the RMAS cartridge that holds membranes collected RM. In addition, alternate surfaces for RM collection were tested. The results of this work are presented in Chapter 2. Chapter 3 summarizes contributions made to a multi-year field campaign aimed at collecting RM using the RMAS at: Amsterdam Island, Indian Ocean; Atlanta, GA; the Great Salt Lake, UT; Guadalupe Mountains National Park, TX; and Reno, NV and the adjacent Peavine Peak. Chapter 3 was focused on understanding the chemistry and concentrations of RM at locations with different ambient air chemistry. Lastly, in Chapter 4, the thesis work was summarized, and the direction of future work discussed. |
author2 |
Gustin, Mae S Dunham-Cheatham, Sarrah Arnott, Patrick |
format |
Thesis |
author |
Allen, Natalie Rose |
author_facet |
Allen, Natalie Rose |
author_sort |
Allen, Natalie Rose |
title |
Improvements to the Measurement of Atmospheric Reactive Mercury, and Contributions to the Investigation of Reactive Mercury at Six Sampling Sites |
title_short |
Improvements to the Measurement of Atmospheric Reactive Mercury, and Contributions to the Investigation of Reactive Mercury at Six Sampling Sites |
title_full |
Improvements to the Measurement of Atmospheric Reactive Mercury, and Contributions to the Investigation of Reactive Mercury at Six Sampling Sites |
title_fullStr |
Improvements to the Measurement of Atmospheric Reactive Mercury, and Contributions to the Investigation of Reactive Mercury at Six Sampling Sites |
title_full_unstemmed |
Improvements to the Measurement of Atmospheric Reactive Mercury, and Contributions to the Investigation of Reactive Mercury at Six Sampling Sites |
title_sort |
improvements to the measurement of atmospheric reactive mercury, and contributions to the investigation of reactive mercury at six sampling sites |
publishDate |
2023 |
url |
http://hdl.handle.net/11714/9759 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Amsterdam Island |
genre_facet |
Amsterdam Island |
op_relation |
http://hdl.handle.net/11714/9759 |
op_rights |
Creative Commons Attribution 4.0 United States https://creativecommons.org/licenses/by/4.0/ Author(s) |
_version_ |
1772177854078910464 |