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DOI | 10.5194/acp-18-3505-2018 |
Environmentally dependent dust chemistry of a super Asian dust storm in March 2010: observation and simulation | |
Wang, Qiongzhen1,2; Dong, Xinyi3; Fu, Joshua S.3; Xu, Jian1; Deng, Congrui1; Jiang, Yilun1; Fu, Qingyan4; Lin, Yanfen4; Huang, Kan1,5; Zhuang, Guoshun1 | |
2018-03-09 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:5页码:3505-3521 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Near-surface and vertical in situ measurements of atmospheric particles were conducted in Shanghai during 19-23 March 2010 to explore the transport and chemical evolution of dust particles in a super dust storm. An air quality model with optimized physical dust emission scheme and newly implemented dust chemistry was utilized to study the impact of dust chemistry on regional air quality. Two discontinuous dust periods were observed with one traveling over northern China (DS1) and the other passing over the coastal regions of eastern China (DS2). Stronger mixing extents between dust and anthropogenic emissions were found in DS2, reflected by the higher SO2 / PM10 and NO2 / PM10 ratios as well as typical pollution elemental species such as As, Cd, Pb, and Zn. As a result, the concentrations of SO24- and NO3- and the ratio of Ca2+ / Ca were more elevated in DS2 than in DS1 but opposite for the [NH4+] / [SO42- + NO3-] ratio, suggesting the heterogeneous reactions between calcites and acid gases were significantly promoted in DS2 due to the higher level of relative humidity and gaseous pollution precursors. Lidar observation showed a columnar effect on the vertical structure of particle optical properties in DS1 that dust dominantly accounted for similar to 80-90% of the total particle extinction from near the ground to similar to 700 m. In contrast, the dust plumes in DS2 were restrained within lower altitudes while the extinction from spherical particles exhibited a maximum at a high altitude of similar to 800 m. The model simulation reproduced relatively consistent results with observations that strong impacts of dust heterogeneous reactions on secondary aerosol formation occurred in areas where the anthropogenic emissions were intensive. Compared to the sulfate simulation, the nitrate formation on dust is suggested to be improved in the future modeling efforts. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427039600002 |
WOS关键词 | TO-BACKSCATTER RATIO ; AIR-QUALITY ; OPTICAL-PROPERTIES ; BASE-ASIA ; POLLUTION ; AEROSOL ; CHINA ; EAST ; TRANSPORT ; IMPACT |
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/21709 |
专题 | 地球科学 |
作者单位 | 1.Fudan Univ, Shanghai Key Lab Atmospher Particle Pollut & Prev, Dept Environm Sci & Engn, Ctr Atmospher Chem Study, Shanghai 200433, Peoples R China; 2.Environm Sci Res & Design Inst Zhejiang Prov, Hangzhou 310007, Zhejiang, Peoples R China; 3.Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA; 4.Shanghai Environm Monitoring Ctr, Shanghai 200030, Peoples R China; 5.Fudan Univ, Inst Atmospher Sci, Shanghai 200433, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Qiongzhen,Dong, Xinyi,Fu, Joshua S.,et al. Environmentally dependent dust chemistry of a super Asian dust storm in March 2010: observation and simulation[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(5):3505-3521. |
APA | Wang, Qiongzhen.,Dong, Xinyi.,Fu, Joshua S..,Xu, Jian.,Deng, Congrui.,...&Zhuang, Guoshun.(2018).Environmentally dependent dust chemistry of a super Asian dust storm in March 2010: observation and simulation.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(5),3505-3521. |
MLA | Wang, Qiongzhen,et al."Environmentally dependent dust chemistry of a super Asian dust storm in March 2010: observation and simulation".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.5(2018):3505-3521. |
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