Application of an aerosol electrical mobility spectrum analyzer: Charged-particle polarity ratio measurement in the Antarctic and Arctic regions

作     者：Handol Lee Hyeok Chung Kang-Ho Ahn Handol Lee;Hyeok Chung;Kang-Ho Ahn

作者机构：Department of Environmental EngineeringInha University100 Inha-roMichuhol-guIncheon 22212South Korea Aerosol Research and Technology Plus(ART+)195-62Daepyeong-roDaewol-myeonIcheonGyunggi-do 17343South Korea Department of Mechanical EngineeringHanyang UniversityERICA55 Hanyangdaehak-roSangnok-guAnsan 15588South Korea 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2021年第33卷第7期

页      面：81-89页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0804[工学-仪器科学与技术] 

基　　金：supported by the research fund of Hanyang University(HY-2019-P) 

主　　题：Aerosol electrical mobility spectrum analyzer Antarctic Arctic Charged-particle polarity ratio 

摘      要：An aerosol electrical mobility spectrum analyzer(AEMSA),developed at Hanyang University,was employed to investigate the particle charge characteristics in the Antarctic and Arctic *** particle charge characteristics in these areas were compared with the charging state in Ansan,South Korea,located in the midlatitude,where artificial factors,such as human activity,urbanization,and traffic,might result in a higher total ***,in Ansan,South Korea,the charged-particle polarity ratio was very stable and was close to ***,notably different particle charge characteristics were obtained in the Antarctic and Arctic *** imbalance between the numbers of positively and negatively charged particles was evident,resulting in more positive charges on the atmospheric *** average,the positively charged particle concentrations in the Antarctic and Arctic areas were 1.4 and 2.8 times higher,respectively,compared with the negatively charged *** developed AEMSA system and the findings of this study provide useful information on the characteristics of atmospheric aerosols in the Antarctic and Arctic regions and can be further utilized to study particle formation mechanisms.