模拟乙醇/汽油混合使用对城市地区臭氧形成的影响

E. Bailey, J. Meagher
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引用次数: 7

摘要

使用EKMA方法研究了1985年车辆从汽油转换为乙醇/汽油混合物所产生的臭氧形成的潜在影响。车辆排放的变化被用来计算多种情景下环境HC反应性的变化以及环境HC、NO/ subx /和CO水平的变化。然后对每种情况下的臭氧形成进行建模。除非使用乙醇/汽油混合物导致排放控制系统恶化,否则对臭氧形成的影响并不显著。环境NO/ subx /HC比值对臭氧的形成有显著影响。
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Modeling the effect of ethanol/gasoline blend usage on ozone formation in urban areas
The potential effects of ozone formation which would result if the 1985 vehicle fleet were converted from gasoline to ethanol/gasoline blends were investigated using the EKMA approach. Changes in vehicular emissions were used to calculate changes in ambient HC reactivities and ambient levels of HC, NO/sub x/ and CO for a number of scenarios. Ozone formation was then modeled for each scenario. Effects on ozone formation were not significant unless the usage of ethanol/gasoline blends resulted in deterioration of the emissions control systems. Ambient NO/sub x/HC ratios were shown to have a significant effect on ozone formation.
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