风况对街区机动车多维度污染暴露水平的影响研究

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文章编号：1674-6139（2026）03-0033-05

中图分类号：X51文献标志码：B

TheImpact of Wind Conditions on the Multi-dimensional Pollution Exposure Levels of Motor Vehicles in Street Blocks

Wang Xingyu 1，2 ，Feng Haixia1，2，Wang Nal，2，Guo Meng1，2 （1.School of TransportationandLogistics Engineering，Shandong Jiaotong University，Jinan 25O357，China; 2.Shandong Intelligent Transportation Key Laboratory（Preparatory），Jinan 25O357，China）

Abstract：Withthecontinuousincreaseinmotorvehiclepopulation，vehicleexhausthasbecometheprimarysourceofpolutantsn urbanatmosphericenvironmentsTakingtheareaaroundtheJinanMunicipalPeople'sGoverentasanexample，thisstudyinvestigates theimpactofprevailingindonditions（winddectionandspeed）onmulti-dimensioal（point，lin，area，ue）poltioeposue levelsfromvehicularemissonsinurbanblocks.Thersultsindicatetatunderspecificwindconditions，polutantexposurelevelsshow significantvatiosacrossdierentlocaiosAnalysisofJinan'sprevailingwiddirectiosandspeedsoertepst14yarsevealstat Long'ao East Road exhibited the most pronounced variation in CO diffusion（ 98.21% ）under constant wind speeds with changing wind directions，while Long'ao West Road showed the smallest variation （34.24% ）．Additionally，under consistent wind directions，CO concentrationsonfourslow-traficroadsgraduallydecreasedwithincreasingwindspeedsThehghestreductionocuredonLong'aoWest （204 Road（74.27%） ，contrasting with the minimal decrease observed on Long'ao South Road（11.18% ）.These findings highlight the critical role of local wind patterns in shaping urban air pollution dispersion and exposure risks.

Keywords：xhaustemissionsfrommotorvehiclesinblocks；windconditions（winddirectionand sped）；difusionmodel;multidimensional pollution exposure level

前言

联合国环境规划署（UNEP）2023年年度报告显示，空气污染每年导致670万人死亡，造成的健康费用相当于全球国内生产总值的 6% 以上[1]。（剩余5423字）