DOI: 10.1016/j.atmosenv.2013.10.007
Scopus记录号: 2-s2.0-84888325841
论文题名: Observations of ammonia, nitric acid, and fine particles in a rural gas production region
作者: Li Y ; , Schwandner F ; M ; , Sewell H ; J ; , Zivkovich A ; , Tigges M ; , Raja S ; , Holcomb S ; , Molenar J ; V ; , Sherman L ; , Archuleta C ; , Lee T ; , Collett J ; L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 83 起始页码: 80
结束页码: 89
语种: 英语
英文关键词: Ammonium
; Denuder
; Gas/particle partitioning
; Nitrate
; Wyoming
Scopus关键词: Ammonia
; Gases
; Nitric acid
; Ammonium
; Ammonium nitrate
; Atmospheric trace gas
; Continuous measurements
; Denuders
; Gas/particle partitioning
; Seasonal patterns
; Wyoming
; Nitrates
; ammonia
; ammonium nitrate
; nitric acid
; nitrogen
; snow
; sulfur derivative
; ammonia
; ammonium nitrate
; boundary layer
; gas production
; nitric acid
; particle size
; photochemistry
; rural area
; rural atmosphere
; snow cover
; sulfate
; suspended particulate matter
; winter
; air pollution
; airborne particle
; ambient air
; article
; biomass
; environmental temperature
; gas
; gas field
; haze
; humidity
; photochemistry
; photooxidation
; plume dispersion
; priority journal
; resource partitioning
; rural area
; seasonal variation
; snow cover
; summer
; United States
; winter
; United States
; Wyoming
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: Continuous measurements of the atmospheric trace gases ammonia (NH3) and nitric acid (HNO3) and of fine particle (PM2.5) ammonium (NH4+), nitrate (NO3-) and sulfate (SO42-) were conducted using a denuder/filter system from December 2006 to December 2011 at Boulder, Wyoming, a region of active gas production. The average five year concentrations of NH3, HNO3, NH4+, NO3- and SO42- were 0.17, 0.19, 0.26, 0.32, and 0.48μgm-3, respectively. Significant seasonal patterns were observed. The concentration of NH3 was higher in the summer than in other seasons, consistent with increased NH3 emissions and a shift in the ammonium nitrate (NH4NO3) equilibrium toward the gas phase at higher temperatures. High HNO3 concentrations were observed both in the summer and the winter. Elevated wintertime HNO3 production appeared to be due to active local photochemistry in a shallow boundary layer over a reflective, snow-covered surface. PM2.5 NH4+ and SO42- concentrations peaked in summer while NO3- concentrations peaked in winter. Cold winter temperatures drive the NH3-HNO3-NH4NO3 equilibrium toward particulate NH4NO3. A lack of NH3, however, frequently results in substantial residual gas phase HNO3 even under cold winter conditions. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80955
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, United States; Shell Exploration and Production Co., Denver, CO 80237, United States; Air Resource Specialists, Inc., Fort Collins, CO 80525, United States
Recommended Citation:
Li Y,, Schwandner F,M,et al. Observations of ammonia, nitric acid, and fine particles in a rural gas production region[J]. Atmospheric Environment,2014-01-01,83