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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
An interlaboratory comparison of aerosol inorganic ion measurements by ion chromatography: implications for aerosol pH estimate
Jingsha Xu,Shaojie Song,Roy M. Harrison,Congbo Song,Lianfang Wei,Qiang Zhang,Yele Sun,Lu Lei,Chao Zhang,Xiaohong Yao,Dihui Chen,Weijun Li,Miaomiao Wu,Hezhong Tian,Lining Luo,Shengrui Tong,Weiran Li,Junling Wang,Guo-Liang Shi,Yanqi Huangfu,Ying-Ze Tian,Baozhu Ge,Shaoli Su,Chao Peng,Yang Chen,Fumo Yang,Aleksandra Mihajlidi-Zelić,Dragana Đorđević,Stefan J. Swift,Imogen Andrews,Jacqueline F. Hamilton,Ye Sun,Agung Ghani Kramawijaya,Jinxiu Han,Supattarachai Saksakulkrai,Clarissa Baldo,Siqi Hou,Feixue Zheng,Kaspar R. Daellenbach,Chao Yan,Yongchun Liu,Markku Kulmala,Pingqing Fu,Zongbo Shi +43 more
TL;DR: In this paper, an inter-comparison experiment was conducted in 10 different laboratories (labs) to investigate the consistency of inorganic ion concentrations and resultant aerosol acidity estimates using the same set of aerosol filter samples.
Journal ArticleDOI
Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NO x in eastern China
Yuliang Liu,Wei Nie,Yuanyuan Li,Dafeng Ge,Chong Liu,Zhengning Xu,Zhengning Xu,Liangduo Chen,Tianyi Wang,Lei Wang,Peng Sun,Ximeng Qi,Jiaping Wang,Zheng Xu,Jian Yuan,Chao Yan,Yanjun Zhang,Yanjun Zhang,Dandan Huang,Zhe Wang,Neil M. Donahue,Douglas R. Worsnop,Xuguang Chi,Mikael Ehn,Aijun Ding +24 more
TL;DR: In this article, a positive matrix factorization on binned mass spectra (binPMF) was performed to identify 1000 non-nitro molecules and about 72% of the total signals are contributed by nitrogen-containing OOMs.
Journal ArticleDOI
Photoinduced Production of Chlorine Molecules from Titanium Dioxide Surfaces Containing Chloride
Yuanyuan Li,Wei Nie,Yuliang Liu,Dandan Huang,Zheng Xu,Xiang Peng,Christian George,Chao Yan,Yee Jun Tham,Chuan Yu,Men Xia,Xiao Fu,Xinfeng Wang,Likun Xue,Zhe Wang,Zhengning Xu,Xuguang Chi,Tao Wang,Aijun Ding +18 more
TL;DR: In this article, the authors demonstrated strong production of Titanium dioxide (TiO2) in the process of urbanization and potentially influences atmospheric chemistry, which is yet unclear. But they demonstrated that TiO2 is extensively used in urban areas.
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Amplified role of potential HONO sources in O<sub>3</sub> formation in North China Plain during autumn haze aggravating processes
Jingwei Zhang,Chaofan Lian,Weigang Wang,Maofa Ge,Yitian Guo,Haiyan Ran,Yusheng Zhang,Feixue Zheng,Xiao-Chen Fan,Chao Yan,Kaspar R. Daellenbach,Yongchun Liu,Markku Kulmala,Junling An +13 more
TL;DR: In this article , Zhang et al. added six potential HONO sources, i.e., four ground-based (traffic, soil, and indoor emissions, and the NO2 heterogeneous reaction on ground surface (Hetground)) sources, and two aerosol-related (Hetaerosol and nitrate photolysis (Photnitrate)) sources into the WRF-Chem model and designed simulations to explore the unclear key sources.
Journal ArticleDOI
Determination of the collision rate coefficient between charged iodic acid clusters and iodic acid using the appearance time method
Xu-Cheng He,Siddharth Iyer,Mikko Sipilä,Arttu Ylisirniö,Maija Peltola,Jenni Kontkanen,Rima Baalbaki,Mario Simon,Andreas Kürten,Yee Jun Tham,Janne Pesonen,Lauri Ahonen,Stavros Amanatidis,António Amorim,Andrea Baccarini,Lisa Beck,F. Bianchi,Sophia Brilke,Dexian Chen,Randall Chiu,Joachim Curtius,Lubna Dada,A.A. Dias,Josef Dommen,Neil M. Donahue,Jonathan Duplissy,Imad El Haddad,Henning Finkenzeller,Lukas Fischer,Martin Heinritzi,Victoria Hofbauer,Juha Kangasluoma,Changhyuk Kim,Theodore K. Koenig,Jakub Kubečka,A. N. Kvashnin,Houssni Lamkaddam,Chuan Ping Lee,Markus Leiminger,Zijun Li,Vladimir Makhmutov,Mao Xiao,Ruby Marten,Wei Nie,Antti Onnela,Eva Partoll,Tuukka Petäjä,Vili Taneli Salo,Simone Schuchmann,Gerhard Steiner,Dominik Stolzenburg,Yuri Stozhkov,Christian Tauber,António Tomé,Olli Väisänen,Miguel Vazquez-Pufleau,Rainer Volkamer,Andrea Christine Wagner,Mingyi Wang,Yonghong Wang,Daniela Wimmer,Paul M. Winkler,Douglas R. Worsnop,Yusheng Wu,Chao Yan,Qing Ye,Kari E. J. Lehtinen,Tuomo Nieminen,Hanna E. Manninen,Matti P. Rissanen,Siegfried Schobesberger,Katrianne Lehtipalo,Urs Baltensperger,Armin Hansel,Veli-Matti Kerminen,Richard C. Flagan,Jasper Kirkby,Theo Kurtén,Markku Kulmala +78 more
TL;DR: Ions enhance the formation rate of atmospheric aerosol particles, which play an important role in Earth's radiative balance as discussed by the authors, and ion-induced nucleation involves the stepwise accretion of neutral monome...