Y
Yan Ma
Researcher at Nanjing University of Information Science and Technology
Publications - 45
Citations - 1254
Yan Ma is an academic researcher from Nanjing University of Information Science and Technology. The author has contributed to research in topics: Aerosol & Particle. The author has an hindex of 15, co-authored 41 publications receiving 853 citations. Previous affiliations of Yan Ma include Nanjing University & Texas A&M University.
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Atmospheric nanoparticles formed from heterogeneous reactions of organics
TL;DR: In this article, exposure of nanoparticles to organic vapours shows that various organic species can enhance the growth of the nanoparticles, which is a key component of atmospheric aerosols, growing rapidly under ambient conditions.
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Measurement of atmospheric amines and ammonia using the high resolution time-of-flight chemical ionization mass spectrometry
Jun Zheng,Yan Ma,Mindong Chen,Qi Zhang,Lin Wang,Alexei F. Khalizov,Lei Yao,Zhen Wang,Xing Wang,Linxi Chen +9 more
TL;DR: In this paper, a high-resolution time-of-flight chemical ionization mass spectrometer (HRToF-CIMS, Aerodyne) was used to identify the sources of NH3 and amines in the densely populated and industrialized Yangtze River Delta region of China.
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Aerosol surface area concentration: a governing factor in new particle formation in Beijing
Runlong Cai,Dongsen Yang,Yueyun Fu,Xing Wang,Xiaoxiao Li,Yan Ma,Jiming Hao,Jun Zheng,Jingkun Jiang +8 more
TL;DR: In this article, the authors investigated the role of aerosol Fuchs surface area in determining the occurrence of new particle formation (NPF) events in Beijing, using a field campaign from 12 March to 6 April 2016, during which aerosol size distributions down to 1 µnm and sulfuric acid concentrations were simultaneously monitored.
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Sulfuric acid–amine nucleation in urban Beijing
Runlong Cai,Runlong Cai,Runlong Cai,Chao Yan,Chao Yan,Dongsen Yang,Rujing Yin,Yiqun Lu,Chenjuan Deng,Yueyun Fu,Jiaxin Ruan,Xiaoxiao Li,Jenni Kontkanen,Qiang Zhang,Juha Kangasluoma,Juha Kangasluoma,Yan Ma,Jiming Hao,Douglas R. Worsnop,F. Bianchi,Pauli Paasonen,Veli-Matti Kerminen,Yongchun Liu,Lin Wang,Jun Zheng,Markku Kulmala,Markku Kulmala,Jingkun Jiang +27 more
TL;DR: Based on long-term atmospheric measurements from January-2018 to March-2019 in Beijing, the nucleation mechanism and the influences of H2SO4 concentration, amine concentrations, and aerosol concentration on NPF are quantified in this paper.
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Nucleation and growth of sub-3 nm particles in the polluted urban atmosphere of a megacity in China
TL;DR: Wang et al. as mentioned in this paper observed that new particle growth rate did not increase monotonically with particle size, but had a local maximum up to 25 nm h−1 between 1 and 3 nm.