高NOx条件下非甲烷烃体积分数的变化对O3生成量的影响

利用ＬＬＡ－Ｃ光化学反应机制，在ＮＯＸ保持高值不变时，模拟分布范围很广的８种初始［ＮＭＨＣ］／［ＮＯｘ］（１０９／１０９）（１．０、３．０、７．１、１４．３、２８．６、５７．２、１００．０、２００．０）条件下臭氧体积分数的变化。模拟结果表明，当［ＮＭＨＣ］／［ＮＯｘ］≥１５．０时，臭氧生成量对ＮＭＨＣ的改变不大敏感而主要依赖于ＮＯｘ的大小。但是，当非甲烷烃与氮氧化物的比北较低（＜７．０）时，臭氧生成量紧密地依赖于非甲烷烃体积分数。进一步的验证工作还有待于加强。

Effects of Changes in the Concentration of Nonmethane Hydrocarbon (NMHC) at High NOx Content on Amount of Ozone Formation

Using the LLA-C mechanism, we have modelled changes in the O 3 concentration under a wide variety of eight initial reactant conditions of /NO x ] =1.0, 3.0, 7.1, 14.3, 28.6, 57.2, 100.0, 200.0 at high NO x concentrations. Simulations indicate that the amount of O 3 formation is not very sensitive ot changes of the NMHC distribution but mainly dependent on the NO x concentration when the /NO x ] is greater than or equal to 15.0. But at low nonmethane hydrocarbon- to-NO x ratios (<7.0) the predicted O 3 concentration strongly depends on the amount of NMHC in a mix. This is a first exploration and much work on validation is needed.