Characterization of particle size distributions during winter haze episodes in urban air
Yan Cheng,Yan Cheng,Lu Yan,Yu Huang,Qiyuan Wang,Lidia Morawska,G.U Zhaolin,Junji Cao,Liyuan Zhang,Bowei Li,Yelin Wang +10 more
TLDR
Li et al. as mentioned in this paper conducted comprehensive characterization of particle size distribution during winter in Xi'an, China using a TSI Fast Mobility Particle Sizer Model 3091 (FMPS, from 5.6 to 523About:
This article is published in Atmospheric Research.The article was published on 2019-11-01 and is currently open access. It has received 12 citations till now. The article focuses on the topics: Haze & Scanning mobility particle sizer.read more
Citations
More filters
Journal ArticleDOI
Chemical composition, water content and size distribution of aerosols during different development stages of regional haze episodes over the North China Plain
Lijuan Shen,Honglei Wang,Honglei Wang,Mengtian Cheng,Dongsheng Ji,Zirui Liu,Lili Wang,Wenkang Gao,Yuan Yang,Wei Huang,Renjian Zhang,Jianan Zou,Yuesi Wang +12 more
TL;DR: In this paper, the formation mechanism and physicochemical characteristics of aerosols in different haze stages have been carried out, and the aerosol size distribution and chemical composition are found to have significant effects on its hygroscopicity, acidity/alkalinity and light extinction.
Journal ArticleDOI
The state of science on severe air pollution episodes: Quantitative and qualitative analysis.
Lidia Morawska,Tong Zhu,Nairui Liu,Mehdi Amouei Torkmahalleh,Maria de Fátima Andrade,Benjamin Barratt,Parya Broomandi,Giorgio Buonanno,Luis Carlos Belalcázar Cerón,Jianmin Chen,Yan Cheng,Greg J. Evans,Mario Gavidia,Hai Guo,Ivan Hanigan,Min Hu,Cheol H Jeong,Frank J. Kelly,Laura Gallardo,Prashant Kumar,Xiaopu Lyu,Benjamin J. Mullins,Claus Nordstrøm,Gavin Pereira,Xavier Querol,Néstor Yezid Rojas Roa,Armistead G. Russell,Helen Thompson,Hao Wang,Lina Wang,Tao Wang,Aneta Wierzbicka,Tao Xue,Celine Ye +33 more
TL;DR: In this paper, the authors investigated the trends of number, frequency, and duration of pollution episodes and compared these with the baseline trend in air pollution, and showed that the factors contributing to these events are complex; however, longterm measures to abate emissions from all anthropogenic sources at all times is also the most efficient way to reduce the occurrence of severe air pollution events.
Journal ArticleDOI
Exploring the impact of new particle formation events on PM2.5 pollution during winter in the Yangtze River Delta, China
Jinping Ou,Craig Johnson,Qihou Hu,Haoran Liu,Shiqi Xu,Zhuang Wang,Xiangguang Ji,Xiangguang Ji,Xinqi Wang,Zhouqing Xie,Zhouqing Xie,Zhouqing Xie,Hui Kang +12 more
TL;DR: In this article, the particle number size distributions and the frequency of new particle formation (NPF) events over Hefei were investigated from November 2018 to February 2019, and the proportions of the nucleation mode, Aitken mode, and accumulation mode were 24.59, 53.10, and 22.30%, respectively.
Journal ArticleDOI
Exploring the impact of new particle formation events on PM2.5 pollution during winter in the Yangtze River Delta, China
TL;DR: In this paper , the particle number size distributions and the frequency of new particle formation (NPF) events over Hefei were investigated from November 2018 to February 2019, and the proportions of the nucleation mode, Aitken mode, and accumulation mode were 24.59, 53.10, and 22.30%, respectively.
Journal ArticleDOI
Examining the physical and chemical contributions to size spectrum evolution during the development of hazes.
Liyuan Zhang,Liyuan Zhang,Junwei Su,Yu Huang,Qiyuan Wang,Renjian Zhang,Yunfei Wu,Yue Zhang,Yan Cheng,Yuanping He,Shuncheng Lee,Chuck Wah Yu,Zhaolin Gu +12 more
TL;DR: A new method was developed to quantitatively evaluate the physical and chemical contributions to growth processes by analysing the size spectrum evolution data, and showed that the accumulative-rise processes are governed by primary emissions and the abrupt-rise process is governed by secondary chemical reactions.
References
More filters
Journal ArticleDOI
High secondary aerosol contribution to particulate pollution during haze events in China
Ru-Jin Huang,Yan-Lin Zhang,Carlo Bozzetti,Kin Fai Ho,Junji Cao,Yongming Han,Kaspar R. Daellenbach,Jay G. Slowik,Stephen Matthew Platt,Francesco Canonaco,Peter Zotter,Robert Wolf,Simone M. Pieber,Emily A. Bruns,Monica Crippa,Giancarlo Ciarelli,Andrea Piazzalunga,Margit Schwikowski,Gülcin Abbaszade,Jürgen Schnelle-Kreis,Ralf Zimmermann,Zhisheng An,Sönke Szidat,Urs Baltensperger,Imad El Haddad,André S. H. Prévôt +25 more
TL;DR: The results suggest that, in addition to mitigating primary particulate emissions, reducing the emissions of secondary aerosol precursors from fossil fuel combustion and biomass burning is likely to be important for controlling China’s PM2.5 levels and for reducing the environmental, economic and health impacts resulting from particulate pollution.
Journal ArticleDOI
Elucidating severe urban haze formation in China
Song Guo,Min Hu,Misti L. Zamora,Jianfei Peng,Dongjie Shang,Jing Zheng,Zhuofei Du,Zhijun Wu,Min Shao,Limin Zeng,Mario J. Molina,Renyi Zhang,Renyi Zhang +12 more
TL;DR: A periodic cycle of PM episodes in Beijing is demonstrated that is governed by meteorological conditions and characterized by two distinct aerosol formation processes of nucleation and growth, but with a small contribution from primary emissions and regional transport of particles.
Journal ArticleDOI
Persistent sulfate formation from London Fog to Chinese haze
Gehui Wang,Gehui Wang,Gehui Wang,Renyi Zhang,Renyi Zhang,Mario E. Gomez,Mario E. Gomez,Lingxiao Yang,Lingxiao Yang,Misti L. Zamora,Min Hu,Yun Lin,Jianfei Peng,Jianfei Peng,Song Guo,Song Guo,Jingjing Meng,Jianjun Li,Chunlei Cheng,Tafeng Hu,Yanqin Ren,Yuesi Wang,Jian Gao,Junji Cao,Zhisheng An,Zhisheng An,Weijian Zhou,Weijian Zhou,Guohui Li,Jiayuan Wang,Pengfei Tian,Pengfei Tian,Pengfei Tian,Pengfei Tian,Pengfei Tian,Pengfei Tian,Wilmarie Marrero-Ortiz,Jeremiah Secrest,Zhuofei Du,Jing Zheng,Dongjie Shang,Limin Zeng,Min Shao,Weigang Wang,Weigang Wang,Yao Huang,Yuan Wang,Yujiao Zhu,Yujiao Zhu,Yixin Li,Jiaxi Hu,Bowen Pan,Li Cai,Li Cai,Yuting Cheng,Yuemeng Ji,Yuemeng Ji,Fang Zhang,Fang Zhang,Daniel Rosenfeld,Daniel Rosenfeld,Peter S. Liss,Peter S. Liss,Robert A. Duce,Charles E. Kolb,Mario J. Molina +65 more
TL;DR: The results explain the outstanding sulfur problem during the historic London Fog formation and elucidate the chemical mechanism of severe haze in China, and suggest that effective haze mitigation is achievable by intervening in the sulfate formation process with NH3 and NO2 emission control measures.
Journal ArticleDOI
Formation of Urban Fine Particulate Matter
Renyi Zhang,Gehui Wang,Song Guo,Misti L. Zamora,Qi Ying,Yun Lin,Weigang Wang,Min Hu,Yuan Wang +8 more
TL;DR: Air pollutants consist of a complex combination of gases and particulate matter, which is emitted directly into the atmosphere or formed in the atmosphere through gas-to-particle conversion (secondary) (Figure 1).
Journal ArticleDOI
Nucleation and Growth of Nanoparticles in the Atmosphere
TL;DR: Nucleation and Growth of Nanoparticles in the Atmosphere Renyi Zhang,* Alexei Khalizov, Lin Wang, Min Hu, and Wen Xu.