DOI: 10.1016/j.atmosenv.2014.05.056
Scopus记录号: 2-s2.0-84901483741
论文题名: Impacts of Stabilized Criegee Intermediates, surface uptake processes and higher aromatic secondary organic aerosol yields on predicted PM2.5 concentrations in the Mexico City Metropolitan Zone
作者: Ying Q ; , Cureño I ; V ; , Chen G ; , Ali S ; , Zhang H ; , Malloy M ; , Bravo H ; A ; , Sosa R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 438
结束页码: 447
语种: 英语
英文关键词: Aromatic hydrocarbon
; Mexico City
; Secondary organic aerosol
; Secondary sulfate
; Stabilized Criegee Intermediates
; Sulfur dioxide
Scopus关键词: Aerosols
; Air quality
; Aromatic hydrocarbons
; Aromatization
; Industrial emissions
; Ozone
; Sulfur dioxide
; Community multi-scale air quality models
; Criegee intermediates
; Mexico City
; Photochemical mechanism
; Secondary organic aerosols
; Secondary sulfate
; Sulfate concentrations
; Unsaturated hydrocarbons
; Reaction intermediates
; alkene
; glyoxal
; methylglyoxal
; sulfate
; toluene
; xylene
; aerosol
; air quality
; concentration (composition)
; metropolitan area
; numerical model
; ozone
; reaction kinetics
; seasonal variation
; sulfate
; air pollutant
; air quality
; article
; chemical analysis
; chemical procedures
; chemical reaction
; circadian rhythm
; concentration process
; meteorology
; Mexico
; ozonolysis
; particulate matter
; priority journal
; product parameters
; secondary organic aerosol
; stabilized criegee intermediate
; Federal District [Mexico]
; Mexico City
; Mexico [North America]
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 Community Multiscale Air Quality Model (CMAQ) with the SAPRC-99 gas phase photochemical mechanism and the AERO5 aerosol module was applied to model gases and particulate matter (PM) concentrations in the Mexico City Metropolitan Zone (MCMZ) and the surrounding regions for March 2006 using the official 2006 emission inventories, along with emissions from biogenic sources, biomass burning, windblown dust, the Tula Industrial Complex and the Popocatépetl volcano. The base case model was capable of reproducing the observed hourly concentrations of O3 and attaining CO, NO2 and NOx performance similar to previous modeling studies. Although the base case model performance of hourly PM2.5 and PM10 meets the model performance criteria, under-prediction of high PM2.5 concentrations in late morning indicates that secondary PM, such as sulfate and secondary organic aerosol (SOA), might be under-predicted. Several potential pathways to increase SOA and secondary sulfate were investigated, including Stabilized Criegee Intermediates (SCIs) from ozonolysis reactions of unsaturated hydrocarbons and their reactions with SO2, the reactive uptake processes of SO2, glyoxal and methylglyoxal on particle surface and higher SOA formation due to higher mass yields of aromatic SOA precursors. Averaging over the entire episode, the glyoxal and methylglyoxal reactive uptake and higher aromatics SOA yields contribute to ~0.9μgm-3 and ~1.25μgm-3 of SOA, respectively. Episode average SOA in the MCMZ reaches ~3μgm-3. The SCI pathway increases PM2.5 sulfate by 0.2-0.4μgm-3 or approximately 10-15%. The relative amount of sulfate increase due to SCI agrees with previous studies in summer eastern US. Surface SO2 uptake significantly increases sulfate concentration in MCMZ by 1-3μgm-3 or approximately 50-60%. The higher SOA and sulfate leads to improved PM2.5 and PM10 model performance. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81281
Appears in Collections: 气候变化事实与影响
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作者单位: Zachry Department of Civil Engineering, Texas A and M University, College Station, TX, 77843-3136, United States; Centro de Ciencias de la Atmósfera, Ciudad Universitaria, Sección de Contaminación Ambiental, Universidad Nacional Autónoma de México, Mexico DF, CP 04510, Mexico; Department of Civil Engineering, University of Missouri-Kansas City, Kansas City, MO, 64110, United States; Department of Civil and Environmental Engineering, University of California, Davis, United States
Recommended Citation:
Ying Q,, Cureño I,V,et al. Impacts of Stabilized Criegee Intermediates, surface uptake processes and higher aromatic secondary organic aerosol yields on predicted PM2.5 concentrations in the Mexico City Metropolitan Zone[J]. Atmospheric Environment,2014-01-01,94