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Jaffe DA, Ninneman M, Nguyen L, Lee H, Hu L, Ketcherside D, Jin L, Cope E, Lyman S, Jones C, O'Neil T, Mansfield ML. Key results from the salt lake regional smoke, ozone, and aerosol study (SAMOZA). JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2024; 74:163-180. [PMID: 38198293 DOI: 10.1080/10962247.2024.2301956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/13/2023] [Indexed: 01/12/2024]
Abstract
The Northern Wasatch Front area is one of ~ 50 metropolitan regions in the U.S. that do not meet the 2015 O3 standard. To better understand the causes of high O3 days in this region we conducted the Salt Lake regional Smoke, Ozone and Aerosol Study (SAMOZA) in the summer of 2022. The primary goals of SAMOZA were: Measure a suite of VOCs, by Proton Transfer Reaction Mass Spectrometry (PTR-MS) and the 2,4-dinitrophenylhydrazine (DNPH) cartridge method.Evaluate whether the standard UV O3 measurements made in SLC show a positive bias during smoke events, as has been suggested in some recent studies.Use the observations to conduct photochemical modeling and statistical/machine learning analyses to understand photochemistry on both smoke-influenced and non-smoke days.Implications: The Northern Wasatch Front area is one of ~50 metropolitan regions in the U.S. that do not meet the 2015 O3 standard. To better understand the causes of high O3 days in this region we conducted the Salt Lake regional Smoke, Ozone and Aerosol Study (SAMOZA) in the summer of 2022. A number of policy relevant findings are identified in the manuscript including role of smoke and NOx vs VOC sensitivity.
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Affiliation(s)
- Daniel A Jaffe
- School of STEM, University of Washington Bothell, Bothell, WA, USA
- Department of Atmospheric Sciences, University of Washington Seattle, Seattle, WA, USA
| | - Matt Ninneman
- School of STEM, University of Washington Bothell, Bothell, WA, USA
| | - Linh Nguyen
- School of STEM, University of Washington Bothell, Bothell, WA, USA
| | - Haebum Lee
- School of STEM, University of Washington Bothell, Bothell, WA, USA
| | - Lu Hu
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | - Damien Ketcherside
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | - Lixu Jin
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | - Emily Cope
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | - Seth Lyman
- Bingham Research Center, Utah State University, Vernal, UT, USA
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT, USA
| | - Colleen Jones
- Bingham Research Center, Utah State University, Vernal, UT, USA
| | - Trevor O'Neil
- Bingham Research Center, Utah State University, Vernal, UT, USA
| | - Marc L Mansfield
- Bingham Research Center, Utah State University, Vernal, UT, USA
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT, USA
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