城市雾霾期主要空气污染物浓度多时间尺度变化特征研究

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文章编号：1674-6139（2026）03-0107-05

中图分类号：X51文献标志码：B

Analysis of Multi-time Scale Variation Characteristics ofMajor AirPollutant Concentrationsin Urban Haze Period

Li Jialin'，Ma Yuanying²

（1.Sichuan Vocational College of Health and Rehabilitation，Zigong 643ooo，China; 2.Zigong First People's Hospital，Zigong 6430o0，China）

Abstract：Inordertocapturethemulti-scaleconcentrationnonlinearchangesofpolutantsduringurbanhazeperiods，themultiscalevariationcharacteristicsoftemainairpolutantconcentrationsduringurbanhazeperiodsaresudied.Tispaperselectskeypolu tantdatafromairqualitymonitoringstationsinthecoreareaofTaiyuan Cityduringthehazeperiodfrom2O18to2O24byusingtheKZfilteringmetodttractteemporalharacteristisofpltantocetratioangesinlogeortendasoalco nents.The experimental results showed that in the long-term component，the concentrations of PM2.5 ， PM10 ，and O3 decreased，while theconcentrationofCOslightlyincreasedInthesort-ecomponent，thfourolutantsebitperiodicfuctuatios.Inthasoal componentsallfouroltantssowedthehighestconcentrationininter，telowestinsmer，ndthetransitioetweenspringand autu.Tiseectivelyidentifidthehangingharacterisicsofeainairolutantconcentrationsduringthehazeperodinthecity， providing a basis for urban pollution control.

Keywords：urban hazeperiod；pollutantconcentration；multiple-timesscales；seasonalcomponents；short-termcomponent

前言

雾霾期空气污染物浓度的变化特征，反映了城市大气环境的整体状况，也是评估城市环境治理效果的重要依据[1-2]。（剩余4157字）