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    Academic Journals

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• Measurement report: Optical properties and sources of water-soluble brown carbon in Tianjin, North China - insights from organic molecular compositions.

  Authors:Junjun Deng, Hao Ma, Xinfeng Wang, Shujun Zhong, Zhimin Zhang, Jialei Zhu, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 10) Peer-Reviewed

  May 19, 2022430 words Article Brown carbon (BrC) aerosols exert vital impacts on climate change and atmospheric photochemistry due to their light absorption in the wavelength range from near-ultraviolet (UV) to visible light. However, the optical...

• Measurement report: On the difference in aerosol hygroscopicity between high and low relative humidity conditions in the North China Plain.

  Authors:Jingnan Shi, Juan Hong, Nan Ma, Qingwei Luo, Yao He, Hanbing Xu, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 7) Peer-Reviewed

  Apr. 8, 2022420 words Article Atmospheric processes, including both primary emissions and secondary formation, may exert complex effects on aerosol hygroscopicity, which is of significant importance in understanding and quantifying the effect of...

• Influence of organic aerosol molecular composition on particle absorptive properties in autumn Beijing.

  Authors:Jing Cai, Cheng Wu, Jiandong Wang, Wei Du, Feixue Zheng, Simo Hakala, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 2) Peer-Reviewed

  Jan. 25, 2022370 words Brief article Organic aerosol (OA) is a major component of fine particulate matter (PM), affecting air quality, human health, and the climate. The absorptive and reflective behavior of OA components contributes to determining particle...

• Measurement report: Long-term changes in black carbon and aerosol optical properties from 2012 to 2020 in Beijing, China.

  Authors:Jiaxing Sun, Zhe Wang, Wei Zhou, Conghui Xie, Cheng Wu, Chun Chen, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 1) Peer-Reviewed

  Jan. 14, 2022404 words Brief article Atmospheric aerosols play an important role in the radiation balance of the earth-atmosphere system. However, our knowledge of the long-term changes in equivalent black carbon (eBC) and aerosol optical properties in...

• Mixing state of refractory black carbon in fog and haze at rural sites in winter on the North China Plain.

  Authors:Yuting Zhang, Hang Liu, Shandong Lei, Wanyun Xu, Yu Tian, Weijie Yao, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 23) Peer-Reviewed

  Dec. 3, 2021492 words Article The variability of the mixing state of refractory black carbon aerosol (rBC) and the corresponding complicated light absorption capacity imposes great uncertainty for its climate forcing assessment. In this study, field...

• Evaluation of the contribution of new particle formation to cloud droplet number concentration in the urban atmosphere.

  Authors:Sihui Jiang, Fang Zhang, Jingye Ren, Lu Chen, Xing Yan, Jieyao Liu, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 18) Peer-Reviewed

  Sept. 27, 2021349 words Brief article The effect of new particle formation (NPF) on cloud condensation nuclei (CCN) varies widely in diverse environments. CCN or cloud droplets from NPF sources remain highly uncertain in the urban atmosphere; they are...

• Measurement report: Vertical distribution of biogenic and anthropogenic secondary organic aerosols in the urban boundary layer over Beijing during late summer.

  Authors:Hong Ren, Wei Hu, Lianfang Wei, Siyao Yue, Jian Zhao, Linjie Li, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 17) Peer-Reviewed

  Sept. 1, 2021328 words Brief article Secondary organic aerosol (SOA) plays a significant role in atmospheric chemistry. However, little is known about the vertical profiles of SOA in the urban boundary layer (UBL). This knowledge gap constrains the SOA...

• Technical note: Boundary layer height determination from lidar for improving air pollution episode modeling: development of new algorithm and evaluation

  Authors:Ting Yang, Zifa Wang, Wei Zhang, Alex Gbaguidi, Nobuo Sugimoto, Xiquan Wang, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 10) Peer-Reviewed

  May 22, 2017255 words Author abstract, Bri... Predicting air pollution events in the low atmosphere over megacities requires a thorough understanding of the tropospheric dynamics and chemical processes, involving, notably, continuous and accurate determination of...

• Estimation of particulate organic nitrates from thermodenuder-aerosol mass spectrometer measurements in the North China Plain.

  Authors:Weiqi Xu, Masayuki Takeuchi, Chun Chen, Yanmei Qiu, Conghui Xie, Wanyun Xu, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 5) Peer-Reviewed

  May 21, 2021330 words Brief article Particulate organic nitrates (pON) are an important component of secondary organic aerosol in biogenic-emission-dominant environments and play a critical role in NO.sub.x cycles. However, estimation of pON has been a...

• Size-segregated particle number and mass concentrations from different emission sources in urban Beijing.

  Authors:Jing Cai, Biwu Chu, Lei Yao, Chao Yan, Liine M. Heikkinen, Feixue Zheng, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 21) Peer-Reviewed

  Nov. 4, 2020415 words Article Although secondary particulate matter is reported to be the main contributor of PM.sub.2.5 during haze in Chinese megacities, primary particle emissions also affect particle concentrations. In order to improve estimates...

• Model bias in simulating major chemical components of PM.sub.2.5 in China.

  Authors:Ruqian Miao, Qi Chen, Yan Zheng, Xi Cheng, Yele Sun, Paul I. Palmer, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 20) Peer-Reviewed

  Oct. 28, 2020436 words Article High concentrations of PM.sub.2.5 (particulate matter with an aerodynamic diameter less than 2.5 µm) in China have caused severe visibility degradation. Accurate simulations of PM.sub.2.5 and its chemical components are...

• Aerosol chemistry and particle growth events at an urban downwind site in North China Plain

  Authors:Yingjie Zhang, Wei Du, Yuying Wang, Qingqing Wang, Haofei Wang, Haitao Zheng, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 19) Peer-Reviewed

  Oct. 12, 2018350 words Brief article, Repor...

  The North China Plain (NCP) has experienced frequent severe haze pollution events in recent years. While extensive measurements have been made in megacities, aerosol sources, processes, and particle growth at urban...

• Possible heterogeneous chemistry of hydroxymethanesulfonate (HMS) in northern China winter haze

  Authors:Shaojie Song, Meng Gao, Weiqi Xu, Yele Sun, Douglas R. Worsnop, John T. Jayne, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 2) Peer-Reviewed

  Feb. 1, 2019225 words Author abstract, Bri...

  The chemical mechanisms responsible for rapid sulfate production, an important driver of winter haze formation in northern China, remain unclear. Here, we propose a potentially important heterogeneous...

• Increase of nitrooxy organosulfates in firework-related urban aerosols during Chinese New Year's Eve.

  Authors:Qiaorong Xie, Sihui Su, Jing Chen, Yuqing Dai, Siyao Yue, Hang Su, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 14) Peer-Reviewed

  July 30, 2021238 words Brief article Little is known about the formation processes of nitrooxy organosulfates (OSs) by nighttime chemistry. Here we characterize nitrooxy OSs at a molecular level in firework-related aerosols in urban Beijing during Chinese...

• Contrasting size-resolved hygroscopicity of fine particles derived by HTDMA and HR-ToF-AMS measurements between summer and winter in Beijing: the impacts of aerosol aging and local emissions.

  Authors:Xinxin Fan, Jieyao Liu, Fang Zhang, Lu Chen, Don Collins, Weiqi Xu, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 2) Peer-Reviewed

  Jan. 24, 2020498 words Article The effects of aerosols on visibility through scattering and absorption of light and on climate through altering cloud droplet concentration are closely associated with their hygroscopic properties. Here, based on field...

• Modeling of aerosol property evolution during winter haze episodes over a megacity cluster in northern China: roles of regional transport and heterogeneous reactions of SO.sub.2

  Authors:Huiyun Du, Jie Li, Xueshun Chen, Zifa Wang, Yele Sun, Pingqing Fu, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 14) Peer-Reviewed

  July 22, 2019379 words Author abstract, Bri...

  Regional transport and heterogeneous reactions have been shown to play crucial roles in haze formation over a megacity cluster centered on Beijing. In this study, the updated Nested Air Quality Prediction Model...

• Multi-method determination of the below-cloud wet scavenging coefficients of aerosols in Beijing, China.

  Authors:Danhui Xu, Baozhu Ge, Xueshun Chen, Yele Sun, Nianliang Cheng, Mei Li, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 24) Peer-Reviewed

  Dec. 19, 2019336 words Brief article Wet scavenging is one of the most efficient processes for removing aerosols from the atmosphere. This process is not well constrained in chemical transport models (CTMs) due to a paucity of localized parameterization...

• Impacts of organic aerosols and its oxidation level on CCN activity from measurement at a suburban site in China

  Authors:Fang Zhang, Zhanqing Li, Yanan Li, Yele Sun, Zhenzhu Wang, Ping Li, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 8) Peer-Reviewed

  May 2, 2016260 words Brief article This study is concerned with the impacts of organic aerosols on cloud condensation nuclei (CCN) activity based on field measurements made at a suburban site in Northern China. The sensitivity of the estimated CCN number...

• IAP-AACM v1.0: a global to regional evaluation of the atmospheric chemistry model in CAS-ESM

  Authors:Ying Wei, Xueshun Chen, Huansheng Chen, Jie Li, Zifa Wang, Wenyi Yang, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 12) Peer-Reviewed

  June 26, 2019419 words Author abstract, Bri...

  In this study, a full description and comprehensive evaluation of a global-regional nested model, the Aerosol and Atmospheric Chemistry Model of the Institute of Atmospheric Physics (IAP-AACM), is presented for the...

• Molecular distribution and compound-specific stable carbon isotopic composition of dicarboxylic acids, oxocarboxylic acids and α-dicarbonyls in PM.sub.2.5 from Beijing, China.

  Authors:Wanyu Zhao, Kimitaka Kawamura, Siyao Yue, Lianfang Wei, Hong Ren, Yu Yan, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 4) Peer-Reviewed

  Feb. 27, 2018366 words Report, Author abstr...

  This study investigates the seasonal variation, molecular distribution and stable carbon isotopic composition of diacids, oxocarboxylic acids and α-dicarbonyls to better understand the sources and formation...