DOI: 10.1016/j.atmosenv.2013.10.059
Scopus记录号: 2-s2.0-84889017200
论文题名: Optimizing the emission inventory of volatile organic compounds (VOCs) based on network observations
作者: Chen S ; -P ; , Liu W ; -T ; , Ou-Yang C ; -F ; , Chang J ; S ; , Wang J ; -L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 84 起始页码: 1
结束页码: 8
语种: 英语
英文关键词: PAMS
; VOC emission
; VOC speciation
Scopus关键词: Air quality
; Methane
; Optimization
; Ozone
; Sulfur dioxide
; Urban growth
; Volatile organic compounds
; Correction approaches
; Emission inventories
; Emission modification
; Meteorological condition
; Non-methane hydrocarbons
; PAMS
; Photochemical assessment monitoring stations
; VOC emissions
; Computer simulation
; nitrogen oxide
; sulfur dioxide
; volatile organic compound
; accuracy assessment
; air quality
; emission inventory
; environmental management
; meteorology
; methane
; optimization
; photochemistry
; simulation
; urban area
; volatile organic compound
; air pollution
; air quality
; article
; concentration (parameters)
; environmental monitoring
; health hazard
; meteorology
; photochemistry
; priority journal
; simulation
; Taiwan
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: Hourly observations of 56 non-methane hydrocarbons (NMHCs) performed by a network of photochemical assessment monitoring stations (PAMS) at 11 locations across Taiwan were used to evaluate 56 speciated emissions and the resulting simulations of an air quality model. Based on the PAMS observations at two urban sites, emission modification was made for the 56 PAMS species in the model. To further test the applicability of this emission correction approach, the same modified emissions were subject to seven different meteorological conditions and comparison with observations of all the 11PAMS sites. Originally there was a minimum of only 8 of 56 species showed agreement with observations for the worst of the 11 PAMS sites and 28 of 56 species for the best site. With modified emissions, the number increased to 13-52 species across the 11 PAMS sites, demonstrating that the simple urban based correction procedure has broad applicability. When applying this modification of PAMS emissions to the simulations of other air quality gases, SO2 and NOx showed small changes compared with observations (-0.27% and-2.51%, respectively), while total VOC concentrations showed significant changes (+15.28%) as a result of the adjustment in VOC emissions (+26.7%). Although VOCs are the precursor of ozone, the relatively large changes in VOC did not seem to affect ozone formation to the similar extent, only resulting in the changes of average O3 by 2.9ppb (+9.41%). It shows that although the emission modification improves individual VOC simulations, the performance in oxidant simulation is still largely unaltered. Although the originalU.S. VOC emission profiles can capture the general features of ambient VOCs, further optimization of emissions may still be needed by referencing extensive observations, so that emissions can better fit domestic conditions and accuracy in model simulations can be improved. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80892
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Atmospheric Physics, National Central University, Taiwan; Department of Chemistry, National Central University, Taiwan
Recommended Citation:
Chen S,-P,, Liu W,et al. Optimizing the emission inventory of volatile organic compounds (VOCs) based on network observations[J]. Atmospheric Environment,2014-01-01,84