Charging states on atmospheric aerosol particles affected by meteorological conditions
大气的喷雾器粒子上的收费状态由气象学的条件影响了作者机构：Department of Earth and Environmental SciencesXi'an Jiaotong UniversityXi'an 710049China Department of Architecture and Civil EngineeringCity University of Hong KongKowloon TongHong KongChina Department of Environmental EngineeringChang'an UniversityXi'an 710064China Faculty of Environmental Symbiotic SciencesPrefectural University of KumamotoKumamoto 862-8502Japan Department of Applied ChemistryKeio University3-14-1 HiyoshiKohoku-kuYokohama 223-8522Japan International Society of the Built Environment(1SBE)Milton Keynes MK78HQUK
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2020年第18卷第5期
页 面：1-9页
核心收录：
学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学]
基 金：supported by the Natural Science Foundation of China(Grant No.11872295) the Strategic Research Grant,City University of Hong Kong(Grant No.Cityli-SRG 7004867) the State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,CAS(Grant No.SKLLQG1807),China
主 题：Aerosol particles Atmospheric humidity Charging state Haze day Physicochemical effect Sand-dust day
摘 要：Previous studies on haze formation focused mainly on the various chemical components in aerosol particles and their physicochemical effects on particle behaviour(e.g.,generation,growth,and agglomeration).This paper describes the measurement of the charging state on atmospheric aerosol particles,which could be affected by meteorological conditions.A series of experiments on particle charging state and meteorological factors was undertaken on the roof of the west 4th building on the Qujiang Campus at Xi an Jiaotong University(China).Measurements were conducted approximately 20 m above ground level,Our results showed that most atmospheric particles carried net negative or positive charge and that the electric charge on the particles varied diurnally and *** average amount of charge on particles was higher in winter than in *** number concentration of charged particles was higher during the day than *** difference in the average charge of aerosol particles was found between sand-dust days and haze days.A strong relationship was found between the PM2.s concentration,charge amount on particles,and *** findings show that particle formation and growth could partly be attributed to variation in particle charging state,which is related to meteorological conditions including atmospheric humidity.
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