Characterization of particle number size distribution and new particle formation in an urban environment in Lanzhou, China

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• 作者：Xinghua Zhang^a ; Yangmei Zhang^b ; ^{ymzhang@camscma.cn} ; Junying Sun^b ; Xuejin Zheng^c ; Gang Li^a ; Zuqing Deng^a
• 关键词：Lanzhou ; particle number concentration ; Particle size distribution ; Mass concentration ; New particle formation
• 刊名：Journal of Aerosol Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：103
• 期：Complete
• 页码：53-66
• 全文大小：1215 K
• 卷排序：103

文摘

Particle number concentrations and size distributions are analyzed from 14 August to 18 November, 2014 in Lanzhou. The different diurnal variations are affected by their respective various sources, such as local emissions and NPF events. High PM pollutions were found on workdays and daytime, except organics was dominant at night due to heating activities. Characterization of NPF events were analyzed to provide insight into the behaviors of particle evolution in Lanzhou. Air masses from west are the most polluted and aged clusters, whereas clean air masses mainly originated from the north.