DOI: 10.1016/j.atmosenv.2014.02.006
Scopus记录号: 2-s2.0-84897646221
论文题名: Ozone in the southeastern United States: An observation-based model using measurements from the SEARCH network
作者: Blanchard C ; L ; , Hidy G ; M ; , Tanenbaum S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 88 起始页码: 192
结束页码: 200
语种: 英语
英文关键词: Generalized additive model
; Meteorology
; NOx
; Ozone
; SEARCH
; VOC
Scopus关键词: Chemical aging
; Generalized additive model
; Meteorological factors
; Nitrogen dioxides
; Non-methane hydrocarbons
; Observation-based model
; Ozone production
; SEARCH
; Application programs
; Meteorology
; Methane
; Nitric oxide
; Nitrogen oxides
; Ozone
; Volatile organic compounds
; Urban growth
; nitric oxide
; nitrogen dioxide
; ozone
; air mass
; concentration (composition)
; meteorology
; nitrogen oxides
; ozone
; pollution monitoring
; site investigation
; ambient air
; article
; concentration (parameters)
; meteorological phenomena
; priority journal
; statistical model
; United States
; United States
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: A generalized additive model (GAM) is used to examine the influence of meteorological factors, nitrogen oxides (NOx=NO+NO2), and non-methane hydrocarbons (NMOC) on daily peak 8-hozone (O3) concentrations. Application to 2002-2011 monitoring data from the Southeastern Aerosol Research and Characterization (SEARCH) program showed sensitivity of peak 8-hO3 to morning concentrations of nitric oxide (NO) and nitrogen dioxide (NO2) and to afternoon concentrations of NO2 reaction products (NOz). Peak O3 decreased with increasing NO and increased with increasing NO2 concentrations, consistent with reactions involving O3, NO, and NO2. Ozone production efficiency (OPE), estimated from the modeled relation between peak 8-hO3 and afternoon NOz, was ~40-100 percent higher at rural compared to urban sites. OPE was nonlinear at all sites, decreasing with increasing NOz concentration. The mean ratio of NOz/NOy showed a two-fold increase from urban to rural sites, associated with chemical aging in stagnant air masses from one day (urban sites) to two or more days (non-urban sites). Peak 8-hO3 concentrations in Atlanta were sensitive to concentrations of both non-biogenic NMOC and NOz. Non-urban Yorkville, Georgia, peak 8-hO3 concentrations were sensitive to NOz but not to non-biogenic NMOC concentrations. The results are consistent with expected NMOC and NOx sensitivity in urban and non-urban locales. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80704
Appears in Collections: 气候变化事实与影响
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作者单位: Envair, 526 Cornell Avenue, Albany, CA 94706, United States; Envair/Aerochem, 6 Evergreen Dr, Placitas, NM 87043, United States
Recommended Citation:
Blanchard C,L,, Hidy G,et al. Ozone in the southeastern United States: An observation-based model using measurements from the SEARCH network[J]. Atmospheric Environment,2014-01-01,88