大气湍流扩散分析下空气颗粒物污染气象特征研究

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文章编号：1674-6139（2025）06-0156-05

中图分类号：X513文献标志码：B

Studyon Meteorological Characteristicsof Particulate Matter Pollution under Atmospheric Turbulence Diffusion Analysis

She Xiangjun，WangHui

（Xiangyin CountyMeteorological Bureau，Yueyang4146OO，China）

Abstract：Inodertomprovetheacuracyofirqualityprediction，themeteorologicalcharacteristicsofparticulatematerolution underatmosphericturbuencedfusionalysiseresudedAcodingtotainndlanfor，themeasuingpntsegd andthetopogaphcatandmeteoolgicaldataerecolctedtodeteeteaverageentilatiooeicientndtheaveraeturblence kineticenegofcntTelatioshipetwntetajectoryofirprtclepolutatsadturbulenceulsatiounderteerageo izontalandverticalwddectiosallatedtoaintheteorologcalaracteristsofirparticlepltioetsttsow thattheturbulentdifusionisustableduringthedaytheairparticlepolutionisconcentratedinthehighaltitudeareandaroundthe polutionsoure.Theturbulentdifusionisableatght，ndtheplltionconentratioiducedndmeetstestadardea tion of PM2.5 and PM10 concentration isbasically consistent with thevariationregionof turbulentdifusionparameters，and theparticle pollutant concentration is highly correlated with turbulent diffusion under the change of wind speed.

KeyWordsatmosphericturbulence；diffusionanalysis；particulatemater；airpollution；meteorologicalcharacteristics

前言

气象变化影响着空气污染物的扩散程度[1]，如果污染物难以扩散，容易造成颗粒物在空气中累积，导致空气质量下降[2-4]。（剩余4528字）