DOI: 10.1016/j.atmosres.2017.10.025
Scopus记录号: 2-s2.0-85033559668
论文题名: The aerosol optical properties and PM2.5 components over the world's largest industrial zone in Tangshan, North China
作者: Zhang K. ; Ma Y. ; Xin J. ; Liu Z. ; Ma Y. ; Gao D. ; Wu J. ; Zhang W. ; Wang Y. ; Shen P.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 201 起始页码: 226
结束页码: 234
语种: 英语
英文关键词: Aerosol optical properties
; Industrial aerosols
; PM2.5 chemical component
; Tangshan
Scopus关键词: Aerosols
; Atmospheric aerosols
; Atmospheric chemistry
; Atmospheric humidity
; Atmospheric radiation
; Chemical analysis
; Earth atmosphere
; Optical properties
; Organic carbon
; Photochemical reactions
; Pollution
; Aerosol optical property
; Atmospheric circulation
; Chemical component
; Fine particle fractions
; Seasonal characteristics
; Secondary inorganic aerosol
; Tangshan
; Vertical temperature gradients
; Air pollution
; aerosol property
; atmospheric circulation
; atmospheric pollution
; dust
; high temperature
; industrial emission
; particulate matter
; photochemistry
; relative humidity
; temperature gradient
; China
; Hebei
; Tangshan
; Sia
英文摘要: To achieve an in-depth understanding of the aerosol optical properties in the highly-industrial region of Tangshan, we provided systematic aerosol optical properties analysis in this largest industrial zone for the first time. The aerosol optical datasets (2013.05–2015.04) and chemical component data of PM2.5 (2014–2015) obtained from the Tangshan site of the campaign on atmospheric aerosol research (CARE-China) network were analyzed. The results showed that the Tangshan region was seriously affected by fine-mode industrial aerosols all year, which would promote the accumulation of pollutants and influence the atmospheric circulation through changing the vertical temperature gradient. The annual average aerosol optical depth (AOD) and Ångstrӧm exponent (α) were 0.80 ± 0.26 and 1.05 ± 0.10, respectively. The aerosol optical properties revealed significant seasonal characteristics. The maximum seasonal average AOD (1.03 ± 0.62) and α (1.12 ± 0.19) accompanied the highest seasonal secondary inorganic aerosol concentrations (SIA: SO4 2 −, NO3 −, NH4 +), 53.33 μg/m3, occurred in summer, and this phenomenon was attributed to the photochemical reactions favored by the high temperature and humidity. During the spring, frequent dust events led to the maximum Ca2 + concentration of 6.57 μg/m3 and the lowest seasonal α of 0.98 ± 0.31. Coal was used for generating heat in winter, resulting in the highest levels of pollutant emissions (Cl−, Elemental carbon (EC) and organic carbon (OC)). The aerosol type classifications showed that the industrial aerosols were the main controls in the summer and fall, representing 56%–58% of the total aerosols. While for spring and winter, mixed aerosols represented 53%–54% of the total aerosols. Hygroscopic growth effect of aerosols existed all year, which could enhance the negative radiative forcing and eventually cool the earth-atmosphere system. The classification Wing for Tangshan data showed high AOD values (> 0.70) were mainly clustered in the fine-mode growth wing and coarse-mode. Of these values, summer showed a dense AOD distribution and the highest magnitude of fine-mode AODs, with a corresponding fine particle fraction of η ~ 90% and an Rf ~ 0.20 μm. In addition, spring showed the most coarse-mode aerosols. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109001
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
There are no files associated with this item.
作者单位: College of Atmospheric Sciences, Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province, Lanzhou University, Lanzhou, 730000, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu University of Information Technology, Chengdu, 610225, China; Shanxi JinHuan Keyuan Environmental Resources of Science and Technology Co., Ltd., China; Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Zhang K.,Ma Y.,Xin J.,et al. The aerosol optical properties and PM2.5 components over the world's largest industrial zone in Tangshan, North China[J]. Atmospheric Research,2018-01-01,201