<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Qiao, K.</style></author><author><style face="normal" font="default" size="100%">ZJ Wu</style></author><author><style face="normal" font="default" size="100%">Pei, X. Y.</style></author><author><style face="normal" font="default" size="100%">Liu, Q. Y.</style></author><author><style face="normal" font="default" size="100%">Shang, D. J.</style></author><author><style face="normal" font="default" size="100%">Zheng, J.</style></author><author><style face="normal" font="default" size="100%">Du, Z. F.</style></author><author><style face="normal" font="default" size="100%">Zhu, W.F.</style></author><author><style face="normal" font="default" size="100%">Y.S. Wu</style></author><author><style face="normal" font="default" size="100%">Lou, S. R.</style></author><author><style face="normal" font="default" size="100%">Guo, S.</style></author><author><style face="normal" font="default" size="100%">Chan, C. K.</style></author><author><style face="normal" font="default" size="100%">Pathak, R. K.</style></author><author><style face="normal" font="default" size="100%">Hallquist, M.</style></author><author><style face="normal" font="default" size="100%">Hu, M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Size-resolved effective density of submicron particles during summertime in the rural atmosphere of Beijing, China</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Environmental Sciences</style></secondary-title><alt-title><style face="normal" font="default" size="100%">J. Environ. Sci.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">analyzer</style></keyword><keyword><style  face="normal" font="default" size="100%">atmospheric aerosol</style></keyword><keyword><style  face="normal" font="default" size="100%">Centrifugal particle mass</style></keyword><keyword><style  face="normal" font="default" size="100%">diurnal-variation</style></keyword><keyword><style  face="normal" font="default" size="100%">Effective density</style></keyword><keyword><style  face="normal" font="default" size="100%">Environmental Sciences &amp; Ecology</style></keyword><keyword><style  face="normal" font="default" size="100%">growth</style></keyword><keyword><style  face="normal" font="default" size="100%">haze formation</style></keyword><keyword><style  face="normal" font="default" size="100%">Hygroscopicity</style></keyword><keyword><style  face="normal" font="default" size="100%">mass analyzer</style></keyword><keyword><style  face="normal" font="default" size="100%">mobility</style></keyword><keyword><style  face="normal" font="default" size="100%">new particle formation</style></keyword><keyword><style  face="normal" font="default" size="100%">rural site</style></keyword><keyword><style  face="normal" font="default" size="100%">secondary organic aerosol</style></keyword><keyword><style  face="normal" font="default" size="100%">soot</style></keyword><keyword><style  face="normal" font="default" size="100%">sulfuric-acid</style></keyword><keyword><style  face="normal" font="default" size="100%">urban</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Nov</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">73</style></volume><pages><style face="normal" font="default" size="100%">69-77</style></pages><isbn><style face="normal" font="default" size="100%">1001-0742</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">Particle density is an important physical property of atmospheric particles. The information on high time-resolution size-resolved particle density is essential for understanding the atmospheric physical and chemical aging processes of aerosols particles. In the present study, a centrifugal particle mass analyzer (CPMA) combined with a differential mobility analyzer (DMA) was deployed to determine the size-resolved effective density of 50 to 350 nm particles at a rural site of Beijing during summer 2016. The measured particle effective densities decreased with increasing particle sizes and ranged from 1.43 to 1.55 g/cm(3), on average. The effective particle density distributions were dominated by a mode peaked at around 1.5 g/cm(3) for 50 to 350 nm particles. Extra modes with peaks at 1.0, 0.8, and 0.6 g/cm(3) for 150, 240, and 350 nm particles, which might be freshly emitted soot particles, were observed during intensive primary emissions episodes. The particle effective densities showed a diurnal variation pattern, with higher values during daytime. A case study showed that the effective density of Aitken mode particles during the new particle formation (NPF) event decreased considerably, indicating the significant contribution of organics to new particle growth. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><accession-num><style face="normal" font="default" size="100%">WOS:000447276400008</style></accession-num><notes><style face="normal" font="default" size="100%">ISI Document Delivery No.: GW9BKTimes Cited: 0Cited Reference Count: 50Qiao, Kai Wu, Zhijun Pei, Xiangyu Liu, Qianyun Shang, Dongjie Zheng, Jing Du, Zhuofei Zhu, Wenfei Wu, Yusheng Lou, Shengrong Guo, Song Chan, Chak K. Pathak, Ravi Kant Hallquist, Mattias Hu, MinHallquist, Mattias/D-2602-2009; Guo, Song/D-9218-2012Hallquist, Mattias/0000-0001-5691-1231; Guo, Song/0000-0002-9661-2313National Key R&amp;amp;D (Research and Development) Program of China [2016YFC0202800: Task 1]; National Natural Science Foundation of China [41475127, 41571130021]; Swedish Research Council [639-2013-6917]This work is supported by the following projects: the National Key R&amp;amp;D (Research and Development) Program of China (No. 2016YFC0202800: Task 1), the National Natural Science Foundation of China (Nos. 41475127, 41571130021) and the framework research program on &amp;#039;Photochemical smog in China&amp;#039; financed by the Swedish Research Council (No. 639-2013-6917).4Science pressBeijing1878-7320</style></notes><auth-address><style face="normal" font="default" size="100%">[Qiao, Kai; Wu, Zhijun; Shang, Dongjie; Zheng, Jing; Du, Zhuofei; Wu, Yusheng; Guo, Song; Hu, Min] Peking Univ, Coll Environm Sci &amp;amp; Engn, State Key Joint Lab Environm Simulat &amp;amp; Pollut Con, Beijing 100871, Peoples R China. [Pei, Xiangyu; Pathak, Ravi Kant; Hallquist, Mattias] Univ Gothenburg, Dept Chem &amp;amp; Mol Biol, Atmospher Sci, S-41296 Gothenburg, Sweden. [Liu, Qianyun] Hong Kong Univ Sci &amp;amp; Technol, Div Environm &amp;amp; Sustainabil, Kowloon, Hong Kong, Peoples R China. [Zhu, Wenfei; Lou, Shengrong] Shanghai Acad Environm Sci, Shanghai 200233, Peoples R China. [Chan, Chak K.] City Univ Hong Kong, Sch Energy &amp;amp; Environm, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China.Wu, ZJ (reprint author), Peking Univ, Coll Environm Sci &amp;amp; Engn, State Key Joint Lab Environm Simulat &amp;amp; Pollut Con, Beijing 100871, Peoples R China.zhijunwu@pku.edu.cn</style></auth-address></record></records></xml>