Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL082028 |
An Odd Oxygen Framework for Wintertime Ammonium Nitrate Aerosol Pollution in Urban Areas: NOx and VOC Control as Mitigation Strategies | |
Womack, C. C.1,2; McDuffie, E. E.1,2,3,4; Edwards, P. M.5; Bares, R.6; de Gouw, J. A.2,3; Docherty, K. S.7; Dube, W. P.1,2; Fibiger, D. L.1,2,8; Franchin, A.1,2; Gilman, J. B.1; Goldberger, L.9,10; Lee, B. H.9; Lin, J. C.6; Lone, R.11; Middlebrook, A. M.1; Millet, D. B.12; Moravek, A.13,14; Murphy, J. G.13; Quinn, P. K.15; Riedel, T. P.11; Roberts, J. M.1; Thornton, J. A.9; Valin, L. C.11; Veres, P. R.1; Whitehill, A. R.11; Wild, R. J.1,2,16; Warneke, C.1,2; Yuan, B.1,2,17; Baasandorj, M.6,18; Brown, S. S.1,3 | |
2019-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:9页码:4971-4979 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada; England; Austria; Peoples R China |
英文摘要 | Wintertime ammonium nitrate aerosol pollution is a severe air quality issue affecting both developed and rapidly urbanizing regions from Europe to East Asia. In the United States, it is acute in western basins subject to inversions that confine pollutants near the surface. Measurements and modeling of a wintertime pollution episode in Salt Lake Valley, Utah, demonstrate that ammonium nitrate is closely related to photochemical ozone through a common parameter, total odd oxygen, O-x,O-total. We show that the traditional nitrogen oxide and volatile organic compound (NOx-VOC) framework for evaluating ozone mitigation strategies also applies to ammonium nitrate. Despite being nitrate-limited, ammonium nitrate aerosol pollution in Salt Lake Valley is responsive to VOCs control and, counterintuitively, not initially responsive to NOx control. We demonstrate simultaneous nitrate limitation and NOx saturation and suggest this phenomenon may be general. This finding may identify an unrecognized control strategy to address a global public health issue in regions with severe winter aerosol pollution. Plain Language Summary Particulate matter (PM) is dangerous to human health and impacts visibility and climate. In the United States, Europe, and Asia, PM is severe in urban areas in the winter when ammonium nitrate, NH4NO3, comprises an appreciable fraction of the total PM mass. A key control strategy is to reduce emissions of the limiting reagent. Using measurements from a recent field campaign in the Salt Lake Valley, Utah, which experiences high PM levels in winter, we demonstrate that emission control strategies can be evaluated using the same framework commonly used to control ozone, another common pollutant that occurs at high levels in urban areas in the summer. We show that initial control of the NOx precursor is ineffective at reducing NH4NO3 aerosol in the Salt Lake Valley, while initial control of volatile organic compounds, which are not a direct precursor for either nitrate or ammonium, is effective due to their influence on oxidation cycles. This finding differs from many mitigation strategies in the western United States and may also be relevant to other regions in Europe and Asia which experience high wintertime PM. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000468869500046 |
WOS关键词 | PARTICULATE NITRATE ; REACTIVE NITROGEN ; OZONE PRODUCTION ; AIR-POLLUTION ; UNITED-STATES ; UTAH ; REDUCTIONS ; EMISSIONS ; AIRBORNE ; EVENTS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/183282 |
专题 | 气候变化 |
作者单位 | 1.NOAA, Earth Syst Res Lab, Chem Sci Div, Boulder, CO 80305 USA; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 3.Univ Colorado, Dept Chem, Boulder, CO 80309 USA; 4.Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS, Canada; 5.Univ York, Dept Chem, York, N Yorkshire, England; 6.Univ Utah, Dept Atmospher Sci, Salt Lake City, UT USA; 7.Jacobs Technol Inc, Durham, NC USA; 8.Calif Air Resources Board, Sacramento, CA USA; 9.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 10.Pacific Northwest Natl Lab, Arm Aerial Facil, Richland, WA 99352 USA; 11.Environm Protect Agcy, Off Res & Dev, Durham, NC USA; 12.Univ Minnesota, Dept Soil Water & Climate, St Paul, MN 55108 USA; 13.Univ Toronto, Dept Chem, Toronto, ON, Canada; 14.York Univ, Dept Chem, Toronto, ON, Canada; 15.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA; 16.Univ Innsbruck, Inst Ionenphys & Angew Phys, Innsbruck, Austria; 17.Jinan Univ, Inst Environm & Climate Res, Guangzhou, Guangdong, Peoples R China; 18.Utah Dept Environm Qual, Div Air Qual, Salt Lake City, UT USA |
推荐引用方式 GB/T 7714 | Womack, C. C.,McDuffie, E. E.,Edwards, P. M.,et al. An Odd Oxygen Framework for Wintertime Ammonium Nitrate Aerosol Pollution in Urban Areas: NOx and VOC Control as Mitigation Strategies[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(9):4971-4979. |
APA | Womack, C. C..,McDuffie, E. E..,Edwards, P. M..,Bares, R..,de Gouw, J. A..,...&Brown, S. S..(2019).An Odd Oxygen Framework for Wintertime Ammonium Nitrate Aerosol Pollution in Urban Areas: NOx and VOC Control as Mitigation Strategies.GEOPHYSICAL RESEARCH LETTERS,46(9),4971-4979. |
MLA | Womack, C. C.,et al."An Odd Oxygen Framework for Wintertime Ammonium Nitrate Aerosol Pollution in Urban Areas: NOx and VOC Control as Mitigation Strategies".GEOPHYSICAL RESEARCH LETTERS 46.9(2019):4971-4979. |
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