夏季持续高温天气下空气微粒污染物浓度扩散特征研究

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文章编号：1674-6139（2025）06-0055-05

中图分类号：X513文献标志码：B

Concentration and Diffusion Characteristics ofAir Particle Pollutants under Continuous High Temperature Weather in Summer

WeiLiying，XieFei，LiangJianping，LiXiaobo，LiYan （Meteorological Observation Center，Baise Meteorological Bureau，Baise 533OOo，China）

Abstract：Tostdythespatiotemporaldifusioncharacteriticsofairparticulatepllutantconcentrationsduringsustainedhighem peraturesinsummer，samplingpointsaresetupiareasfarawayfrompolutionsources，withflatterainandgodvegetationcoverage， nearplaintraffcarteries，mountaintops，mountainslops，andfoothill.Medumflowimpactgradedsamplersreusedforcontiuous sampling，andlaserparticlecountersareusedtomonitorconcenrationchangeseveryhour.ThemonitoringperiodistheholedayUnder sustained high temperatures in summer， PM2.5 concentration is higher than PM10 .The concentration of particulate pollutants is higher oncleardays.There is a significant diffrence in the difusion characteristics of PM2.5 and PM10 concentrations between daytime and nightie.Iedisofantsartasratioegmperaueprootsttaldticalsif polutants，reducingthoncentratioofparticlatepoltantsnearthegroundTesustaiedightemperatureinummerassigificant impact on the spatiotemporal difusion characteristics of air particulate pollutant concentrations.

Key words：sustained high temperature weather in summer; PM2.5 ： PM10 concentration；diffusion characteristics；Quartz fiber filtei membrane

前言

空气微粒污染物是影响空气质量的关键因素之一，它们对人类健康和环境质量产生着深远的影响。（剩余5015字）