PRODUCTION OF ALDEHYDES AS PRIMARY EMISSIONS AND FROM SECONDARY ATMOSPHERIC REACTIONS OF ALKENES AND ALKANES DURING THE NIGHT AND EARLY MORNING HOURS
PRODUCTION OF ALDEHYDES AS PRIMARY EMISSIONS AND FROM SECONDARY ATMOSPHERIC REACTIONS OF ALKENES AND ALKANES DURING THE NIGHT AND EARLY MORNING HOURS
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DOI：
10.1016/0960-1686(93)90067-9
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发表时间：
1993-01-01
期刊：
影响因子：
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通讯作者：
ALTSHULLER, AP
中科院分区：
文献类型：
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作者：
ALTSHULLER, AP
在2100 ~ 0900 h的稳定边界层内，计算了烯烃和烷烃与O3、NO3和OH自由基的反应生成c1 ~ c4饱和醛。这些结果与现有的关于汽车尾气中醛的一次排放的结果进行了比较。对于目前的汽油燃料汽车，在2100- 900小时期间，从排放的碳氢化合物中产生的二次大气醛通常比直接排放的醛占主导地位。因此，为了对O3和其他产品进行模式预测，在对最初早晨大气中醛的负荷进行假设时，仅使用醛排放清单是不够的。如果未来的车辆数量应该包括很大一部分以甲醇和天然气为动力的车辆，那么在2100- 900小时期间，一次醛的排放，特别是甲醛的排放，可能会占二次醛生产的主导地位。
The production of C1-C4 saturated aldehydes has been calculated within the stable boundary layer between 2100 and 0900 h from the reactions of alkenes and alkanes with O3, NO3 and OH radicals. These results are compared with those available on the primary emissions of aldehydes from vehicular exhausts. For current gasoline-fueled vehicles, the secondary atmospheric production of aldehydes from the hydrocarbons emitted will usually predominate over direct emissions of aldehydes during the 2100-0900 h period. Therefore, in making assumptions about initial morning atmospheric loadings of aldehydes for purposes of model predictions as to O3 and other products, use of only an aldehyde emission inventory is inadequate. If the future population of vehicles should include a large fraction of vehicles powered with methanol and natural gas, primary aldehyde emissions, especially emissions of formaldehyde, may predominate over secondary production of aldehydes during the 2100-0900 h period,