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Prof. Dr. Song Guo
Peking University, Beijing, China
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18Years (2009-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications24 November 2014 in Proceedings of the National Academy of Sciences
Journal Article
SGSong Guo
Song GuoMHMin Hu
Min HuMZMisti Zamora
Misti ZamoraJPJianfei Peng
Jianfei PengDSDongjie Shang
Dongjie Shang
RZRenyi Zhang
Renyi Zhang +6
Significance: We illustrate the similarity and difference in particulate matter (PM) formation between Beijing and other world regions. The periodic cycle of PM events in Beijing is regulated by meteorological conditions. While the particle chemical compositions in Beijing are similar to those commonly measured worldwide, efficient nucleation and growth over an extended period in Beijing are distinctive from the aerosol formation typically observed in other global areas. Gaseous emissions of volatile organic compounds and nitrogen oxides from urban transportation and sulfur dioxide from regional industry are responsible for large secondary PM formation, while primary emissions and regional transport of PM are insignificant. Reductions in emissions of the aerosol precursor gases from transportation and industry are essential to mediate severe haze pollution in China.
5 May 2015 in Chemical Reviews
Journal Article
RZRenyi Zhang
Renyi ZhangGWGehui Wang
Gehui Wang
SGSong Guo
Song GuoMZMisti Zamora
Misti ZamoraQYQi Ying
Qi YingYWYuan Wang
Yuan Wang +3
14 November 2016 in Proceedings of the National Academy of Sciences
Journal Article
GWGehui Wang
Gehui Wang
RZRenyi Zhang
Renyi ZhangMGMario E. Gomez
Mario E. Gomez
LYLingxiao Yang
Lingxiao Yang
MZMisti Zamora
Misti ZamoraMMMario J. Molina
Mario J. Molina +39
Significance: Exceedingly high levels of fine particulate matter (PM) occur frequently in China, but the mechanism of severe haze formation remains unclear. From atmospheric measurements in two Chinese megacities and laboratory experiments, we show that the oxidation of SO 2 by NO 2 occurs efficiently in aqueous media under two polluted conditions: first, during the formation of the 1952 London Fog via in-cloud oxidation; and second, on fine PM with NH 3 neutralization during severe haze in China. We suggest that effective haze mitigation is achievable by intervening in the sulfate formation process with NH 3 and NO 2 emission control measures. Hence, our results explain the outstanding sulfur problem during the historic London Fog formation and elucidate the chemical mechanism of severe haze in China.
28 March 2016 in Proceedings of the National Academy of Sciences
Journal Article
JPJianfei Peng
Jianfei PengMHMin Hu
Min HuSGSong Guo
Song GuoZDZhuofei Du
Zhuofei Du
JZJing Zheng
Jing Zheng
RZRenyi Zhang
Renyi Zhang +10
Significance: Although black carbon (BC) represents a key short-lived climate forcer, its direct radiative forcing remains highly uncertain. The available results from available studies of absorption enhancement of BC particles during atmospheric aging are conflicting. Using a novel environmental chamber method, we have, for the first time to our knowledge, quantified the aging and variation in the optical properties of BC particles under ambient urban conditions representative of developed and developing countries. Our results indicate that BC under polluted urban environments could contribute significantly to both pollution development and large positive radiative forcing, implying that reduction of BC emissions under polluted environments achieves a cobenefit in simultaneously controlling air pollution and protecting climate, especially for developing countries.
12 February 2018 in Environmental Science & Technology Letters
Journal Article
ZWZhijun Wu
Zhijun WuYWYu Wang
Yu Wang
TTTianyi Tan
Tianyi Tan
YZYishu Zhu
Yishu Zhu
MLMengren Li
Mengren Li
YZYuanhang Zhang
Yuanhang Zhang
+5
17 August 2017 in Environmental Science & Technology Letters
Journal Article
Haichao Wang
Keding LuXCXiaorui Chen
Xiaorui Chen
QZQindan Zhu
Qindan Zhu
QCQi Chen
Qi Chen
YZYuanhang Zhang
Yuanhang Zhang
+12
About Me
Dr. Song Guo is now a Tenured Associate Professor at Peking University, China. Song receives his Bachelor and PhD degree at Peking University, and then move to Texas A&M University to continue his research as post-doc. In 2015, he took an Assistant Professor position at Peking University.
Song has a broad interest in atmospheric chemistry. His research involves both field measurement and laboratory study, focusing on secondary aerosol formation. Specifically, (1) new particle formation and growth mechanism in highly polluted environment: conducting field measurement and chamber simulation to investigate aerosol nucleation and growth, focusing on the roles of organics, and (2) secondary organic aerosol (SOA) formation using several online and offline techniques to investigate the constituents and sources of Semi-/Intermediate Volatility Organic Compounds (S/IVOCs), and their contributions to SOA. In addition, PAM and chamber are used to investigate the SOA formation from anthropogenic emission, i.e., gasoline and diesel engine, Chinese cooking, and biomass burning.