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    Academic Journals

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• 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...

• Direct observations indicate photodegradable oxygenated volatile organic compounds (OVOCs) as larger contributors to radicals and ozone production in the atmosphere.

  Authors:Wenjie Wang, Bin Yuan, Yuwen Peng, Hang Su, Yafang Cheng, Suxia Yang, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 6) Peer-Reviewed

  Mar. 30, 2022274 words Brief article Volatile organic compounds (VOCs) regulate atmospheric oxidation capacity, and the reactions of VOCs are key in understanding ozone formation and its mitigation strategies. When evaluating their impact, most previous...

• Hygroscopicity of organic compounds as a function of organic functionality, water solubility, molecular weight, and oxidation level.

  Authors:Shuang Han, Juan Hong, Qingwei Luo, Hanbing Xu, Haobo Tan, Qiaoqiao Wang, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 6) Peer-Reviewed

  Mar. 28, 2022383 words Brief article Aerosol hygroscopicity strongly influences the number size distribution, phase state, optical properties, and multiphase chemistry of aerosol particles. Due to the large number of organic species in atmospheric aerosols,...

• The impact of chlorine chemistry combined with heterogeneous N.sub.2O.sub.5 reactions on air quality in China.

  Authors:Xiajie Yang, Qiaoqiao Wang, Nan Ma, Weiwei Hu, Yang Gao, Zhijiong Huang, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 6) Peer-Reviewed

  Mar. 21, 2022426 words Article The heterogeneous reaction of N.sub.2 O.sub.5 on Cl-containing aerosols (heterogeneous N.sub.2 O.sub.5 + Cl chemistry) plays a key role in chlorine activation, NO.sub.x recycling, and consequently O.sub.3 and PM.sub.2.5...

• Bimodal distribution of size-resolved particle effective density: results from a short campaign in a rural environment over the North China Plain.

  Authors:Yaqing Zhou, Nan Ma, Qiaoqiao Wang, Zhibin Wang, Chunrong Chen, Jiangchuan Tao, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 3) Peer-Reviewed

  Feb. 14, 2022413 words Article Effective density is one of the most important physical properties of atmospheric particles. It is closely linked to particle chemical composition and morphology and could provide special information on particle...

• Impact of non-ideality on reconstructing spatial and temporal variations in aerosol acidity with multiphase buffer theory.

  Authors:Guangjie Zheng, Hang Su, Siwen Wang, Andrea Pozzer, and Yafang ChengFrom:Atmospheric Chemistry and Physics (Vol. 22, Issue 1) Peer-Reviewed

  Jan. 3, 2022257 words Brief article Aerosol acidity is a key parameter in atmospheric aqueous chemistry and strongly influences the interactions of air pollutants and the ecosystem. The recently proposed multiphase buffer theory provides a framework to...

• Calibration and evaluation of a broad supersaturation scanning (BS2) cloud condensation nuclei counter for rapid measurement of particle hygroscopicity and cloud condensation nuclei (CCN) activity.

  Authors:Najin Kim, Yafang Cheng, Nan Ma, Mira L. Pöhlker, Thomas Klimach, Thomas F. Mentel, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 11) Peer-Reviewed

  Nov. 5, 2021440 words Article For understanding and assessing aerosol-cloud interactions and their impact on climate, reliable measurement data on aerosol particle hygroscopicity and cloud condensation nuclei (CCN) activity are required. The CCN...

• Water Supply Risk Analysis Based on Runoff Sequence Simulation with Change Point under Changing Environment

  Authors:Yafang Cheng, Ping Feng, Jianzhu Li, Yuangang Guo, and Peizhen RenFrom:Advances in MeteorologyPeer-Reviewed

  Sept. 30, 20197,837 words Article 1570LThis study investigates the water supply risk of Panjiakou reservoir in the Luanhe River basin of China during 1956-2016 under environmental change. Since the monthly runoff series during 1956-2016 is a time series with...

• Reactive nitrogen around the Arabian Peninsula and in the Mediterranean Sea during the 2017 AQABA ship campaign.

  Authors:Nils Friedrich, Philipp Eger, Justin Shenolikar, Nicolas Sobanski, Jan Schuladen, Dirk Dienhart, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 10) Peer-Reviewed

  May 18, 2021450 words Article We present shipborne measurements of NO.sub.x (â¡ NO + NO.sub.2) and NO.sub.y (â¡ NO.sub.x + gas- and particle-phase organic and inorganic oxides of nitrogen) in summer 2017 as part of the expedition "Air Quality and...

• Soil nitrite as a source of atmospheric HONO and OH radicals

  Authors:Hang Su, Yafang Cheng, Robert Oswald, Thomas Behrendt, Ivonne Trebs, Franz X. Meixner, et al.From:Science (Vol. 333, Issue 6049) Peer-Reviewed

  Sept. 16, 2011119 words Author abstract, Rep...

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• Propagation of blood function errors to the estimates of kinetic parameters with dynamic PET

  Authors:Yafang Cheng and Imam Samil YetikFrom:International Journal of Biomedical ImagingPeer-Reviewed

  Annual 20114,423 words Report 1640LDynamic PET, in contrast to static PET, can identify temporal variations in the radiotracer concentration. Mathematical modeling of the tissue of interest in dynamic PET can be simplified using compartment models as a...

• Influx of African biomass burning aerosol during the Amazonian dry season through layered transatlantic transport of black carbon-rich smoke.

  Authors:Bruna A. Holanda, Mira L. Pöhlker, David Walter, Jorge Saturno, Matthias Sörgel, Jeannine Ditas, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 8) Peer-Reviewed

  Apr. 24, 2020486 words Article Black carbon (BC) aerosols influence the Earth's atmosphere and climate, but their microphysical properties, spatiotemporal distribution, and long-range transport are not well constrained. This study presents airborne...

• 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...

• Aerosol pH and chemical regimes of sulfate formation in aerosol water during winter haze in the North China Plain.

  Authors:Wei Tao, Hang Su, Guangjie Zheng, Jiandong Wang, Chao Wei, Lixia Liu, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 20) Peer-Reviewed

  Oct. 17, 2020509 words Article Understanding the mechanism of haze formation is crucial for the development of deliberate pollution control strategies. Multiphase chemical reactions in aerosol water have been suggested as an important source of...

• Modeling the smoky troposphere of the southeast Atlantic: a comparison to ORACLES airborne observations from September of 2016.

  Authors:Yohei Shinozuka, Pablo E. Saide, Gonzalo A. Ferrada, Sharon P. Burton, Richard Ferrare, Sarah J. Doherty, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 19) Peer-Reviewed

  Oct. 7, 2020526 words Article In the southeast Atlantic, well-defined smoke plumes from Africa advect over marine boundary layer cloud decks; both are most extensive around September, when most of the smoke resides in the free troposphere. A...

• Isotopic constraints on heterogeneous sulfate production in Beijing haze

  Authors:Pengzhen He, Becky Alexander, Lei Geng, Xiyuan Chi, Shidong Fan, Haicong Zhan, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 8) Peer-Reviewed

  Apr. 23, 2018498 words Author abstract, Bri... Discerning mechanisms of sulfate formation during fine-particle pollution (referred to as haze hereafter) in Beijing is important for understanding the rapid evolution of haze and for developing cost-effective air...

• Long-term observations of cloud condensation nuclei in the Amazon rain forest - Part 1: Aerosol size distribution, hygroscopicity, and new model parametrizations for CCN prediction

  Authors:Florian Ditas, Thomas Klimach, Isabella Hrabe de Angelis, Joel Brito, Samara Carbone, Yafang Cheng, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 24) Peer-Reviewed

  Dec. 20, 2016333 words Author abstract, Bri... Size-resolved long-term measurements of atmospheric aerosol and cloud condensation nuclei (CCN) concentrations and hygroscopicity were conducted at the remote Amazon Tall Tower Observatory (ATTO) in the central Amazon...

• Relative importance of gas uptake on aerosol and ground surfaces characterized by equivalent uptake coefficients

  Authors:Meng Li, Hang Su, Guo Li, Nan Ma, and Yafang ChengFrom:Atmospheric Chemistry and Physics (Vol. 19, Issue 16) Peer-Reviewed

  Aug. 29, 2019377 words Author abstract, Bri...

  Quantifying the relative importance of gas uptake on the ground and aerosol surfaces helps to determine which processes should be included in atmospheric chemistry models. Gas uptake by aerosols is often...

• Physicochemical uptake and release of volatile organic compounds by soil in coated-wall flow tube experiments with ambient air

  Authors:Guo Li, Yafang Cheng, Uwe Kuhn, Rongjuan Xu, Yudong Yang, Hannah Meusel, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 4) Peer-Reviewed

  Feb. 20, 2019286 words Author abstract, Bri...

  Volatile organic compounds (VOCs) play a key role in atmospheric chemistry. Emission and deposition on soil have been suggested as important sources and sinks of atmospheric trace gases. The exchange characteristics...

• Long-term observations of cloud condensation nuclei over the Amazon rain forest -- Part 2: Variability and characteristics of biomass burning, long-range transport, and pristine rain forest aerosols

  Authors:Florian Ditas, Jorge Saturno, Thomas Klimach, Joel Brito, Samara Carbone, Yafang Cheng, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 14) Peer-Reviewed

  July 19, 2018638 words Brief article, Repor...

  Size-resolved measurements of atmospheric aerosol and cloud condensation nuclei (CCN) concentrations and hygroscopicity were conducted over a full seasonal cycle at the remote Amazon Tall Tower Observatory (ATTO,...