唐山市 O₃ 和 PM_2.5 复合污染特征及潜在源区研究

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文章编号：1674-6139（2025）06-0049-06

中图分类号：X16文献标志码：B

Characteristics and Potential Source Areas of O3 and PM2.5 Combined Pollution in Tangshan City

WangDan1，2，3，Wang Xiuling1，2，3，WangGuan1，2，3，Chen Zhen12，3 （1.KeyLaboratoryof Meteorologyand Ecological Environmentof HebeiProvince，Shijiazhuang O5o021，China 2.Tangshan KeyLaboratoryof Meteorological Disaster Preventionand Early Warning，Tangshan O630o，China; 3.TangshanMeteorological Bureau，Tangshan O63OOO，China）

Abstract：Based on the O3 and PM2.5 data of Tangshan environmental monitoring stationand the meteorological data of the national basic meteorological station，the characteristics and potential source areas of the combined pollution of 03 and PM2.5 in Tangshan City from2018to2O21wereanalyzed.Theresultsshowedthatthecombinedpolutionmainlydistributedfrom MarchtoSeptember，andthe numberofcombindpoltiondaysretelargestinArilandeptember.Duringtheombinedplltionperiod，teaveragecoctra tion of O3-8 h was slightly higher than that of single O3 pollution day，and the average concentration of PM2.5 was slightly lower than that of single PM2，5 pollution day.The maximum concentrations of O3-8h and PM2，5 were lower than the corresponding independent pollution days.The average temperature ranges from 16.7‰ to 19.8qC ，the average relative humidity ranges from 37% to 45% from November to 19，the sunshine hours range from 9.2 to 10.8h ，and the average daily wind speed ranges from2.4 to 3.5m/s .The potential source areasare mainlylocatedatthe junctionof Handan，Xingtai，Hengshui and Shandong，as wellas in northern Henan.

Keywords： 03 ： PM2.5 ；composite pollution characteristics；backward trajectory；potential source analysis

前言

近年来 O3 和 PM2.5 复合污染问题日益显现， 03 和 PM2.5 具有共同的前体物，但二者又会相互影响[1]。（剩余6113字）