DOI: 10.1016/j.atmosenv.2013.11.034
Scopus记录号: 2-s2.0-84890282159
论文题名: Uncertainty in the uptake coefficient for HONO formation on soot and its impacts on concentrations of major chemical components in the Beijing-Tianjin-Hebei region
作者: Tang Y ; , An J ; , Li Y ; , Wang F
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 84 起始页码: 163
结束页码: 171
语种: 英语
英文关键词: HONO
; Soot
; Uptake coefficient
; WRF-Chem model
Scopus关键词: Nitrogen compounds
; Nitrogen oxides
; Photolysis
; Redox reactions
; Soot
; Aerosol components
; Beijing-tianjin-hebei regions
; Chemical component
; HONO
; Orders of magnitude
; Per unit volume
; Photolysis frequencies
; Uptake coefficients
; Dust
; nitrate
; sulfate
; atmospheric pollution
; concentration (composition)
; ecological modeling
; fractionation
; heterogeneity
; magnitude
; nitrogen compound
; oxygen
; photolysis
; redox potential
; soot
; uncertainty analysis
; aerosol
; air pollution
; air temperature
; article
; boundary layer
; humidity
; meteorology
; oxidation reduction reaction
; photochemistry
; photolysis
; porosity
; prediction
; priority journal
; simulation
; soot
; China
; Hebei
; Tianjin
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The soot redox reaction with an uptake coefficient (γ) of 10-4 at night and the soot heterogeneous photochemistry with the γ formula of JNO2/10 in the daytime, where JNO2 denotes the NO2 photolysis frequency, were inserted into the WRF-Chem model to evaluate the effects of γ changes of several orders of magnitude on the concentrations of HONO, HOx, O3, NO3-, and NH4+ in the Beijing-Tianjin-Hebei (BTH) region. Results demonstrated that the simulations in the BTH region support the redox mechanism at night and the heterogeneous photochemistry mechanism in the daytime for HONO formation, and suggested that the order of magnitude of γ is likely to be 10-4. Minor increases in HONO, HOx, O3, NO3-, and NH4+ were produced when γ was decreased to ≤10-5, whereas the concentrations of HONO and NO3- were substantially overestimated in most cases when γ was increased to 10-3. The soot surface area per unit volume of air showed a sharp decrease from 3×103μm2cm-3 near the ground to 6×102μm2cm-3 at ~200m at night. The surface area fractions of soot, nitrate, and sulfate showed minor variations between day and night, although the surface areas of the major aerosol components at night were approximately three times those in the daytime. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81266
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Lab. of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS), Beijing 100029, China; University of the Chinese Academy of Sciences, Beijing 100049, China; Anhui Meteorological Bureau, Hefei 230061, China
Recommended Citation:
Tang Y,, An J,, Li Y,et al. Uncertainty in the uptake coefficient for HONO formation on soot and its impacts on concentrations of major chemical components in the Beijing-Tianjin-Hebei region[J]. Atmospheric Environment,2014-01-01,84