Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1080/02786826.2019.1571160 |
| Modelling of nitric acid gas adsorption by atmospheric dust particles | |
| Elperin, Tov1; Fominykh, Andrew1; Katra, Itzhak2; Krasovitov, Boris1 | |
| 通讯作者 | Krasovitov, Boris |
| 来源期刊 | AEROSOL SCIENCE AND TECHNOLOGY
 |
| ISSN | 0278-6826 |
| EISSN | 1521-7388 |
| 出版年 | 2019 |
| 卷号 | 53期号:4页码:381-393 |
| 英文摘要 | We suggest a two-dimensional model of adsorption of trace atmospheric gases by mineral dust particles with origin from desert soils. The model is based on the application of theory of turbulent diffusion in the atmospheric boundary layer (ABL) in conjunction with the model of gas adsorption by porous solid particles. The numerical model is formulated using parameterizations based on eolian (by wind) dust emission experiments. The eolian field experiments were performed at a dust source (loess soil in Northern Negev, Israel) using a portable boundary layer wind tunnel to determine the emitted particulate matter (PM) fluxes for different wind speeds and varying soil conditions. The numerical analysis is performed for the adsorption of gas-phase HNO3 by dust PM. We determined numerically concentration distributions of the atmospheric dust PM, and trace gas using shear velocity and emitted dust flux from the soils employed in the experiments. Analysis was performed for the case of neutral and slightly stable stratification of ABL typical for dust storm events in the East Mediterranean. The numerical analysis showed that during dust events the slightly stable atmosphere is characterized by higher concentration of PM10 in the surface layer than the neutrally stable atmosphere. It is found that in the case of neutral stratification as well as for stable atmospheric stratification the concentration of nitric acid HNO3 strongly depends on concentration of atmospheric dust particles. The developed model enhances our capacity of quantification of atmospheric dust effects in climate models as well as health risk assessment. Copyright (c) 2019 American Association for Aerosol Research |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Israel |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000461895600003 |
| WOS关键词 | MINERAL DUST ; FIELD CAMPAIGN ; SAHARAN DUST ; FLY-ASH ; AEROSOL ; SURFACE ; TRANSPORT ; STABILITY ; PHASE ; EMISSIONS |
| WOS类目 | Engineering, Chemical ; Engineering, Mechanical ; Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 来源机构 | Ben-Gurion University of the Negev |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/213908 |
| 作者单位 | 1.Ben Gurion Univ Negev, Pearlstone Ctr Aeronaut Engn Studies, Dept Mech Engn, POB 653, IL-8410501 Beer Sheva, Israel; 2.Ben Gurion Univ Negev, Dept Geog & Environm Dev, Beer Sheva, Israel |
| 推荐引用方式 GB/T 7714 | Elperin, Tov,Fominykh, Andrew,Katra, Itzhak,et al. Modelling of nitric acid gas adsorption by atmospheric dust particles[J]. Ben-Gurion University of the Negev,2019,53(4):381-393. |
| APA | Elperin, Tov,Fominykh, Andrew,Katra, Itzhak,&Krasovitov, Boris.(2019).Modelling of nitric acid gas adsorption by atmospheric dust particles.AEROSOL SCIENCE AND TECHNOLOGY,53(4),381-393. |
| MLA | Elperin, Tov,et al."Modelling of nitric acid gas adsorption by atmospheric dust particles".AEROSOL SCIENCE AND TECHNOLOGY 53.4(2019):381-393. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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