HFCAS OpenIR
Impacts of Transboundary Dust Transport on Aerosol Pollution in the Western Yangtze River Delta Region, China: Insights Gained From Ground-Based Lidar and Satellite Observations
Yang, Hao1,2,3; Fang, Zhiyuan1,2,3; Cao, Ye1,2,3; Xie, Chenbo1,3; Zhou, Tian4; Wang, Bangxin1,3; Xing, Kunming1,3; Lolli, Simone5
2021-03-01
发表期刊EARTH AND SPACE SCIENCE
通讯作者Xie, Chenbo(cbxie@aiofm.ac.cn)
摘要Dust storms pose a serious threat to air quality and public health through large-scale, long-distance transport. In early April 2018, two severe dust storm events occurred in the Taklimakan and Gobi Deserts in northwestern China. The advected air-masses containing dust traveled eastward over long distances reaching the western Yangtze River Delta region (WYRDR) with local PM 10 peak concentrations of 190 and 410 mu g/m(3) on April 6 and April 11, 2018, respectively. Satellite remote sensing and ground-based lidar observations showed that the first dust event was transported to WYRDR at an altitude of <5 km, while the second transport height was at an altitude of <3 km. The first one was accompanied with the dry-cold air mass in the northwest moving eastward and southward. By comparison, in the second event, the dust aerosols were mixed with anthropogenic aerosols from southwestern China. Meanwhile, as southerly warm-humid air flows prevailed at near-surface layer over the WYRDR in the second event, the associated higher relative humidity potentially induced hygroscopic growth of polluted dust aerosols, resulting in explosive growth of PM10. In addition, the average depolarization ratio of aerosols over WYRDR on April 6 was 0.3, while on April 11 it was 0.2, indicating that the previous pollution event featured more obvious nonspherical characteristics of aerosols. Our findings provide scientific evidence that transboundary dust events and resultant local PM10 pollution are closely related to various transport trajectories of dust aerosols as well as the local vertical wind profiles and surface humidity conditions.
DOI10.1029/2020EA001533
收录类别SCI
语种英语
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17040524] ; Key Program of 13th 5-year plan, CASHIPS[KP-2019-05]
项目资助者Strategic Priority Research Program of Chinese Academy of Sciences ; Key Program of 13th 5-year plan, CASHIPS
WOS研究方向Astronomy & Astrophysics ; Geology
WOS类目Astronomy & Astrophysics ; Geosciences, Multidisciplinary
WOS记录号WOS:000635218300030
出版者AMER GEOPHYSICAL UNION
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/121480
专题中国科学院合肥物质科学研究院
通讯作者Xie, Chenbo
作者单位1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, Hefei, Peoples R China
2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei, Peoples R China
3.Adv Laser Technol Lab Anhui Prov, Hefei, Peoples R China
4.Lanzhou Univ, Sch Atmospher Sci, Lanzhou, Gansu, Peoples R China
5.Natl Res Council CNR, Inst Methodol Environm Anal, Contrada S Loja Snc, Rome, Italy
第一作者单位中科院安徽光学精密机械研究所
通讯作者单位中科院安徽光学精密机械研究所
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Yang, Hao,Fang, Zhiyuan,Cao, Ye,et al. Impacts of Transboundary Dust Transport on Aerosol Pollution in the Western Yangtze River Delta Region, China: Insights Gained From Ground-Based Lidar and Satellite Observations[J]. EARTH AND SPACE SCIENCE,2021,8.
APA Yang, Hao.,Fang, Zhiyuan.,Cao, Ye.,Xie, Chenbo.,Zhou, Tian.,...&Lolli, Simone.(2021).Impacts of Transboundary Dust Transport on Aerosol Pollution in the Western Yangtze River Delta Region, China: Insights Gained From Ground-Based Lidar and Satellite Observations.EARTH AND SPACE SCIENCE,8.
MLA Yang, Hao,et al."Impacts of Transboundary Dust Transport on Aerosol Pollution in the Western Yangtze River Delta Region, China: Insights Gained From Ground-Based Lidar and Satellite Observations".EARTH AND SPACE SCIENCE 8(2021).
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