Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-9287-2019 |
On the contribution of nocturnal heterogeneous reactive nitrogen chemistry to particulate matter formation during wintertime pollution events in Northern Utah | |
McDuffie, Erin E.1,2,3,7; Womack, Caroline C.1,2; Fibiger, Dorothy L.1,2,8; Dube, William P.1,2; Franchin, Alessandro1,2; Middlebrook, Ann M.1; Goldberger, Lexie4,9; Lee, Ben H.4; Thornton, Joel A.4; Moravek, Alexander5,10; Murphy, Jennifer G.5; Baasandorj, Munkhbayar6,11; Brown, Steven S.1,3 | |
2019-07-19 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:14页码:9287-9308 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada |
英文摘要 | Mountain basins in Northern Utah, including the Salt Lake Valley (SLV), suffer from wintertime air pollution events associated with stagnant atmospheric conditions. During these events, fine particulate matter concentrations (PM2.5) can exceed national ambient air quality standards. Previous studies in the SLV have found that PM2.5 is primarily composed of ammonium nitrate (NH4NO3), formed from the condensation of gas-phase ammonia (NH3) and nitric acid (HNO3). Additional studies in several western basins, including the SLV, have suggested that production of HNO3 from nocturnal heterogeneous N2O5 uptake is the dominant source of NH4NO3 during winter. The rate of this process, however, remains poorly quantified, in part due to limited vertical measurements above the surface, where this chemistry is most active. The 2017 Utah Winter Fine Particulate Study (UWFPS) provided the first aircraft measurements of detailed chemical composition during wintertime pollution events in the SLV. Coupled with ground-based observations, analyses of day- and nighttime research flights confirm that PM2.5 during wintertime pollution events is principally composed of NH4NO3, limited by HNO3. Here, observations and box model analyses assess the contribution of N2O5 uptake to nitrate aerosol during pollution events using the NO3- production rate, N2O5 heterogeneous uptake coefficient (gamma(N2O5)), and production yield of ClNO2 (phi(ClNO2)), which had medians of 1.6 mu g m(-3) h(-1), 0.076, and 0.220, respectively. While fit values of gamma(N2O5) may be biased high by a potential under-measurement in aerosol surface area, other fit quantities are unaffected. Lastly, additional model simulations suggest nocturnal N2O5 uptake produces between 2.4 and 3.9 mu g m(-3) of nitrate per day when considering the possible effects of dilution. This nocturnal production is sufficient to account for 52 %-85 % of the daily observed surface-level buildup of aerosol nitrate, though accurate quantification is dependent on modeled dilution, mixing processes, and photochemistry. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476502100005 |
WOS关键词 | N2O5 UPTAKE COEFFICIENTS ; AMMONIUM-NITRATE ; ORGANIC AEROSOLS ; PARTICLE-PHASE ; BOUNDARY-LAYER ; CACHE VALLEY ; RELATIVE-HUMIDITY ; CLNO2 PRODUCTION ; RESIDUAL-LAYER ; AIR-POLLUTION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/185174 |
专题 | 地球科学 |
作者单位 | 1.NOAA, Chem Sci Div, Boulder, CO 80305 USA; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO USA; 3.Univ Colorado, Dept Chem, Boulder, CO 80309 USA; 4.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 5.Univ Toronto, Dept Chem, Toronto, ON, Canada; 6.Univ Utah, Dept Atmospher Sci, Salt Lake City, UT USA; 7.Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS, Canada; 8.Calif Air Resources Board, Sacramento, CA USA; 9.Pacific Northwest Natl Lab, Arm Aerial Facil, Richland, WA 99352 USA; 10.York Univ, Dept Chem, Toronto, ON, Canada; 11.Chevron Corp, Houston, TX USA |
推荐引用方式 GB/T 7714 | McDuffie, Erin E.,Womack, Caroline C.,Fibiger, Dorothy L.,et al. On the contribution of nocturnal heterogeneous reactive nitrogen chemistry to particulate matter formation during wintertime pollution events in Northern Utah[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(14):9287-9308. |
APA | McDuffie, Erin E..,Womack, Caroline C..,Fibiger, Dorothy L..,Dube, William P..,Franchin, Alessandro.,...&Brown, Steven S..(2019).On the contribution of nocturnal heterogeneous reactive nitrogen chemistry to particulate matter formation during wintertime pollution events in Northern Utah.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(14),9287-9308. |
MLA | McDuffie, Erin E.,et al."On the contribution of nocturnal heterogeneous reactive nitrogen chemistry to particulate matter formation during wintertime pollution events in Northern Utah".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.14(2019):9287-9308. |
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