DOI: 10.1016/j.atmosenv.2016.12.009
Scopus记录号: 2-s2.0-85002583642
论文题名: Simulating ozone concentrations using precursor emission inventories in Delhi – National Capital Region of India
作者: Sharma S ; , Khare M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 151 起始页码: 117
结束页码: 132
语种: 英语
英文关键词: Air quality
; NCR
; Ozone
; WRF-CMAQ modelling
Scopus关键词: Agricultural wastes
; Agriculture
; Air quality
; Atmospheric thermodynamics
; Exhaust gases
; Nitrogen oxides
; Diesel generator sets
; Emission inventories
; Evaporative emission
; Ground level ozone concentration
; Incomplete combustion
; Monitoring stations
; National capital regions
; Ozone concentration
; Ozone
; carbon monoxide
; fuel
; nitrogen
; ozone
; solvent
; volatile organic compound
; air quality
; anthropogenic source
; biomass burning
; capital city
; concentration (composition)
; emission inventory
; model validation
; ozone
; photochemistry
; pollution monitoring
; rural area
; solar radiation
; agriculture
; air quality
; Article
; burn
; clinical evaluation
; combustion
; concentration process
; electric power plant
; environmental management
; environmental monitoring
; evaporation
; exhaust gas
; human
; India
; photochemistry
; plume
; precursor
; precursor emission inventory
; priority journal
; seasonal variation
; solar radiation
; summer
; winter
; Delhi
; India
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: This study simulates ground level ozone concentrations in a heavily populated and polluted National Capital Region (NCR- Delhi) in India. Multi-sectoral emission inventories of ozone precursors are prepared at a high resolution of 4 × 4 km2 for the whole region covering the capital city of Delhi along with other surrounding towns and rural regions in NCR. Emission inventories show that transport sector accounts for 55% of the total NOx emissions, followed by power plants (23%) and diesel generator sets (7%). In NMVOC inventories, transport sector again accounts for 33%, followed by evaporative emissions released from solvent use and fuel handling activities (30%), and agricultural residue burning (28%). Refuse burning contributes to 73% of CO emissions mainly due to incomplete combustion, followed by agricultural residue burning (14%). These emissions are spatially and temporally distributed across the study domain and are fed into the WRF-CMAQ models to predict ozone concentrations for the year 2012. Model validations are carried out with the observed values at different monitoring stations in Delhi. The performance of the models over various metrics used for evaluation was found to be satisfactory. Summers and post-monsoon seasons were better simulated than monsoon and winter seasons. Simulations have shown higher concentrations of ozone formation during summers and lesser during winters and monsoon seasons, mainly due to varying solar radiation affecting photo-chemical activities. Ozone concentrations are observed lower at those locations where NOx emissions are higher, and concentrations increase close to the boundary of study domain when compared to the center of Delhi city. Downwind regions to Delhi are influenced by the ozone formed due to plume of precursor emissions released from Delhi. Considering significant background contributions, regional scale controls are required for reducing ozone in NCR. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82226
Appears in Collections: 气候变化事实与影响
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作者单位: Civil Engineering Department, Indian Institute of Technology, Hauz Khas, New Delhi, India; Centre for Environmental Studies, The Energy and Resources Institute, IHC Complex, Lodhi Road, New Delhi, India
Recommended Citation:
Sharma S,, Khare M. Simulating ozone concentrations using precursor emission inventories in Delhi – National Capital Region of India[J]. Atmospheric Environment,2017-01-01,151