C
Chao Yan
Researcher at University of Helsinki
Publications - 150
Citations - 5612
Chao Yan is an academic researcher from University of Helsinki. The author has contributed to research in topics: Aerosol & Chemistry. The author has an hindex of 31, co-authored 107 publications receiving 3322 citations. Previous affiliations of Chao Yan include Carnegie Mellon University & Helsinki Institute of Physics.
Papers
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Journal ArticleDOI
Quiet New Particle Formation in the Atmosphere
Markku Kulmala,Heikki Junninen,Lubna Dada,Imre Salma,Tamás Weidinger,Wanda Thén,Máté Vörösmarty,Kaupo Komsaare,Dominik Stolzenburg,Runlong Cai,Chao Yan,Xinyang Li,Chenjuan Deng,Jing Jiang,Tuukka Petäjä,Tuomo Nieminen,Veli-Matti Kerminen +16 more
TL;DR: In this article , the authors used measurement data from several locations (Hyytiälä, Järvselja, and near-city background and city center of Budapest) and found that during such days, particle formation rates at 6 nm were about 2-20% of those observed during the traditional NPF event days.
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Towards a concentration closure of sub-6 nm aerosol particles and sub-3 nm atmospheric clusters
Dominik Stolzenburg,Markku Kulmala,Dominik Stolzenburg,Lubna Dada,Lubna Dada,Lubna Dada,Runlong Cai,Jenni Kontkanen,Chao Yan,Chao Yan,Juha Kangasluoma,Lauri Ahonen,Loic Gonzalez-Carracedo,Juha Sulo,Santeri Tuovinen,Chenjuan Deng,Yiran Li,Katrianne Lehtipalo,Katrianne Lehtipalo,Kari E. J. Lehtinen,Tuukka Petäjä,Tuukka Petäjä,Paul M. Winkler,Jingkun Jiang,Veli-Matti Kerminen,Veli-Matti Kerminen +25 more
TL;DR: In this article, the authors derived a set of simple equations to estimate the atmospheric cluster concentrations in size ranges of 1.5-2-nm and 2-3-nm as well as 3-6-nm aerosol particles.
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Volatility of mixed atmospheric humic-like substances and ammonium sulfate particles
Wei Nie,Juan Hong,Silja A. K. Häme,Aijun Ding,Yugen Li,Chao Yan,Liqing Hao,Jyri Mikkilä,Longfei Zheng,Yuning Xie,Caijun Zhu,Zheng Xu,Xuguang Chi,Xin Huang,Yang Zhou,Yang Zhou,Peng Lin,Peng Lin,Annele Virtanen,Douglas R. Worsnop,Markku Kulmala,Mikael Ehn,Jian Zhen Yu,Veli-Matti Kerminen,Tuukka Petäjä,Tuukka Petäjä +25 more
TL;DR: Li et al. as discussed by the authors extracted humic-like substances (HULIS) from four atmospheric aerosol samples collected at the SORPES station in Nanjing, eastern China, and investigated the volatility behavior of particles at different sizes using a Volatility Tandem Differential Mobility Analyzer.
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Influence of Seasonal Variation and Long-Range Transport of Carbonaceous Aerosols on Haze Formation at a Seaside Background Site, China
Xiao Sui,Lingxiao Yang,Haiying Yi,Qi Yuan,Chao Yan,Can Dong,Chuanping Meng,Lan Yao,Fei Yang,Wenxing Wang +9 more
TL;DR: In this article, the authors measured carbonaceous aerosol concentrations using 2.5-μm-diameter particle (PM2.5) samples collected from the Yellow River Delta, Shandong Province, China, from January 2011 to November 2011 by using the thermal/optical reflectance method.
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Survival probabilities of atmospheric particles: comparison based on theory, cluster population simulations, and observations in Beijing
Santeri Tuovinen,Runlong Cai,Veli-Matti Kerminen,Jing Jiang,Chao Yan,Markku Kulmala,Jenni Kontkanen +6 more
TL;DR: In this article , the authors investigate and compare survival probabilities from 1.5 to 3.5, from 3 to 6'nm, and from 6' to 10'nm (J10/J6) based on analytical formulae, cluster population simulations, and atmospheric observations.