Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-3249-2020 |
Aerosol pH and liquid water content determine when particulate matter is sensitive to ammonia and nitrate availability | |
Nenes, Athanasios1,2; Pandis, Spyros N.1,3; Weber, Rodney J.4; Russell, Armistead5 | |
2020-03-18 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:5页码:3249-3258 |
文章类型 | Article |
语种 | 英语 |
国家 | Greece; Switzerland; USA |
英文摘要 | Nitrogen oxides (NOx) and ammonia (NH3) from anthropogenic and biogenic emissions are central contributors to particulate matter (PM) concentrations worldwide. The response of PM to changes in the emissions of both compounds is typically studied on a case-by-case basis, owing in part to the complex thermodynamic interactions of these aerosol precursors with other PM constituents. Here we present a simple but thermodynamically consistent approach that expresses the chemical domains of sensitivity of aerosol particulate matter to NH3 and HNO3 availability in terms of aerosol pH and liquid water content. From our analysis, four policy-relevant regimes emerge in terms of sensitivity: (i) NH3 sensitive, (ii) HNO3 sensitive, (iii) NH3 and HNO3 sensitive, and (iv) insensitive to NH3 or HNO3. For all regimes, the PM remains sensitive to nonvolatile precursors, such as nonvolatile cations and sulfate. When this framework is applied to ambient measurements or predictions of PM and gaseous precursors, the "chemical regime" of PM sensitivity to NH3 and HNO3 availability is directly determined. The use of these regimes allows for novel insights, and this framework is an important tool to evaluate chemical transport models. With this extended understanding, aerosol pH and associated liquid water content naturally emerge as previously ignored state parameters that drive PM formation. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000521148400002 |
WOS关键词 | AIR-POLLUTION ; GLOBAL BURDEN ; MINERAL DUST ; CLIMATE ; PM2.5 ; REDUCTIONS ; MORTALITY ; EMISSIONS ; DISEASE ; TRENDS |
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/278693 |
专题 | 地球科学 |
作者单位 | 1.Fdn Res & Technol Hellas, Inst Chem Engn Sci, Patras 26504, Greece; 2.Ecole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn, CH-1015 Lausanne, Switzerland; 3.Univ Patras, Dept Chem Engn, Patras 26504, Greece; 4.Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA; 5.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA |
推荐引用方式 GB/T 7714 | Nenes, Athanasios,Pandis, Spyros N.,Weber, Rodney J.,et al. Aerosol pH and liquid water content determine when particulate matter is sensitive to ammonia and nitrate availability[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(5):3249-3258. |
APA | Nenes, Athanasios,Pandis, Spyros N.,Weber, Rodney J.,&Russell, Armistead.(2020).Aerosol pH and liquid water content determine when particulate matter is sensitive to ammonia and nitrate availability.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(5),3249-3258. |
MLA | Nenes, Athanasios,et al."Aerosol pH and liquid water content determine when particulate matter is sensitive to ammonia and nitrate availability".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.5(2020):3249-3258. |
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