A Model of Ozone Production in Urban Plumes

被引:3
作者
Antell, Mark R. [1 ]
机构
[1] US EPA, Washington, DC 20460 USA
关键词
D O I
10.1016/0160-4120(79)90073-4
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A model of rural smogs and urban plumes introduced into rural smog is developed. The single day variation of level of reactive species including ozone in rural smog in the eastern United States is simulated by mathematical modelling. Rural air masses are modelled as though they were outdoor smog chamber systems of low inital contaminant concentration to which small additional injections of contaminants, representating rural emissions, are made throughout the day. Rural smogs containing urban plumes are modelled as though they were outdoor inflatable smog chambers to which relatively large amounts of pollution material are added in the early minutes after sunrise and which are continuously diluted with material from chambers simulating rural smog. The urban plume model is specifically intended to simulate the photochemistry of parcels of air which sweep over relatively isolated cities in the eastern United States. The model runs suggest that the observed lack of urban plumes downwind of small cities is due to dilution. Additionally, the model suggests that the concentrations of both ozone and ozone precursors in rural smog have a significant effect on ozone production in urban plumes.
引用
收藏
页码:157 / 166
页数:10
相关论文
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