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    Academic Journals

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• Interpretation of NO.sub.3-N.sub.2O.sub.5 observation via steady state in high-aerosol air mass: the impact of equilibrium coefficient in ambient conditions.

  Authors:Xiaorui Chen, Haichao Wang, and Keding LuFrom:Atmospheric Chemistry and Physics (Vol. 22, Issue 5) Peer-Reviewed

  Mar. 16, 2022241 words Brief article Steady-state approximation for interpreting NO.sub.3 and N.sub.2 O.sub.5 has large uncertainty under complicated ambient conditions and could even produce incorrect results unconsciously. To provide an assessment and...

• Atmospheric measurements at Mt. Tai - Part I: HONO formation and its role in the oxidizing capacity of the upper boundary layer.

  Authors:Chaoyang Xue, Can Ye, Jörg Kleffmann, Chenglong Zhang, Valéry Catoire, Fengxia Bao, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 5) Peer-Reviewed

  Mar. 9, 2022442 words Article A comprehensive field campaign, with measurements of HONO and related parameters, was conducted in summer 2018 at the foot (150 m a.s.l.) and the summit (1534 m a.s.l.) of Mt. Tai (Shandong province, China). At the...

• N.sub.2O.sub.5 uptake onto saline mineral dust: a potential missing source of tropospheric ClNO.sub.2 in inland China.

  Authors:Haichao Wang, Chao Peng, Xuan Wang, Shengrong Lou, Keding Lu, Guicheng Gan, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 3) Peer-Reviewed

  Feb. 8, 2022284 words Brief article Nitryl chloride (ClNO.sub.2 ), an important precursor of Cl atoms, significantly affects atmospheric oxidation capacity and O.sub.3 formation. However, sources of ClNO.sub.2 in inland China have not been fully...

• Atmospheric measurements at Mt. Tai - Part II: HONO budget and radical (RO.sub.x + NO.sub.3) chemistry in the lower boundary layer.

  Authors:Chaoyang Xue, Can Ye, Jörg Kleffmann, Wenjin Zhang, Xiaowei He, Pengfei Liu, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 2) Peer-Reviewed

  Jan. 21, 2022472 words Article In the summer of 2018, a comprehensive field campaign, with measurements on HONO and related parameters, was conducted at the foot (150 m a.s.l.) and the summit of Mt. Tai (1534 m a.s.l.) in the central North China Plain...

• A comprehensive observation-based multiphase chemical model analysis of sulfur dioxide oxidations in both summer and winter.

  Authors:Huan Song, Keding Lu, Can Ye, Huabin Dong, Shule Li, Shiyi Chen, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 17) Peer-Reviewed

  Sept. 14, 2021211 words Brief article Sulfate is one of the main components of haze fine particles, and its formation mechanism remains controversial. A lack of detailed and comprehensive field data hinders the accurate evaluation of relative roles of...

• Thermal dissociation cavity-enhanced absorption spectrometer for measuring NO.sub.2, RO.sub.2NO.sub.2, and RONO.sub.2 in the atmosphere.

  Authors:Chunmeng Li, Haichao Wang, Xiaorui Chen, Tianyu Zhai, Shiyi Chen, Xin Li, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 6) Peer-Reviewed

  June 3, 2021283 words Brief article We developed thermal dissociation cavity-enhanced absorption spectroscopy (TD-CEAS) for the in situ measurement of NO.sub.2, total peroxy nitrates (PNs, RO.sub.2 NO.sub.2 ), and total alkyl nitrates (ANs, RONO.sub.2) in...

• 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...

• Experimental budgets of OH, HO.sub.2, and RO.sub.2 radicals and implications for ozone formation in the Pearl River Delta in China 2014

  Authors:Zhaofeng Tan, Keding Lu, Andreas Hofzumahaus, Hendrik Fuchs, Birger Bohn, Frank Holland, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 10) Peer-Reviewed

  May 29, 2019556 words Author abstract, Bri...

  Hydroxyl (OH) and peroxy radicals (HO.sub.2 and RO.sub.2) were measured in the Pearl River Delta, which is one of the most polluted areas in China, in autumn 2014. The radical observations were complemented by...

• Heterogeneous reactions of mineral dust aerosol: implications for tropospheric oxidation capacity

  Authors:Mingjin Tang, Xin Huang, Keding Lu, Maofa Ge, Yongjie Li, Peng Cheng, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 19) Peer-Reviewed

  Oct. 5, 2017202 words Author abstract, Bri... Heterogeneous reactions of mineral dust aerosol with trace gases in the atmosphere could directly and indirectly affect tropospheric oxidation capacity, in addition to aerosol composition and physicochemical properties....

• Significant concentrations of nitryl chloride sustained in the morning: investigations of the causes and impacts on ozone production in a polluted region of northern China

  Authors:Yee Jun Tham, Zhe Wang, Qinyi Li, Hui Yun, Weihao Wang, Xinfeng Wang, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 23) Peer-Reviewed

  Dec. 5, 2016353 words Brief article Nitryl chloride (ClNO.sub.2) is a dominant source of chlorine radical in polluted environment, and can significantly affect the atmospheric oxidative chemistry. However, the abundance of ClNO.sub.2 and its exact role...

• Impact of aerosol-radiation interaction on new particle formation.

  Authors:Gang Zhao, Yishu Zhu, Zhijun Wu, Taomou Zong, Jingchuan Chen, Tianyi Tan, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 13) Peer-Reviewed

  July 6, 2021285 words Brief article New particle formation (NPF) is thought to contribute half of the global cloud condensation nuclei. A better understanding of the NPF at different altitudes can help assess the impact of NPF on cloud formation and...

• Fast particulate nitrate formation via N.sub.2O.sub.5 uptake aloft in winter in Beijing

  Authors:Haichao Wang, Keding Lu, Xiaorui Chen, Qindan Zhu, Zhijun Wu, Yusheng Wu, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 14) Peer-Reviewed

  July 23, 2018298 words Author abstract, Bri...

  Particulate nitrate (pNO.sub.3 .sup.-) is an important component of secondary aerosols in urban areas. Therefore, it is critical to explore its formation mechanism to assist with the planning of haze abatement...

• Development of an incoherent broadband cavity-enhanced absorption spectrometer for in situ measurements of HONO and NO.sub.2

  Authors:Jun Duan, Min Qin, Bin Ouyang, Wu Fang, Xin Li, Keding Lu, et al.From:Atmospheric Measurement Techniques (Vol. 11, Issue 7) Peer-Reviewed

  July 30, 2018332 words Author abstract, Bri...

  Gaseous nitrous acid (HONO) is an important source of OH radicals in the troposphere. However, its source, especially that during daytime hours remains unclear. We present an instrument for simultaneous unambiguous...

• Daytime atmospheric oxidation capacity in four Chinese megacities during the photochemically polluted season: a case study based on box model simulation

  Authors:Zhaofeng Tan, Keding Lu, Meiqing Jiang, Rong Su, Hongli Wang, Shengrong Lou, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 6) Peer-Reviewed

  Mar. 20, 201964 words Author abstract, Bri... Byline: Zhaofeng Tan, Keding Lu, Meiqing Jiang, Rong Su, Hongli Wang, Shengrong Lou, Qingyan Fu, Chongzhi Zhai, Qinwen Tan, Dingli Yue, Duohong Chen, Zhanshan Wang, Shaodong Xie, Limin Zeng, Yuanhang Zhang To access,...

• Observations of fine particulate nitrated phenols in four sites in northern China: concentrations, source apportionment, and secondary formation

  Authors:Liwei Wang, Xinfeng Wang, Rongrong Gu, Hao Wang, Lan Yao, Liang Wen, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 6) Peer-Reviewed

  Mar. 29, 2018297 words Author abstract, Bri... Filter samples of fine particulate matters were collected at four sites in northern China (urban, rural, and mountain) in summer and winter, and the contents of nine nitrated phenols were quantified in the laboratory...

• How the OH reactivity affects the ozone production efficiency: case studies in Beijing and Heshan, China

  Authors:Yudong Yang, Min Shao, Yue Li, Keding Lu, Sihua Lu, Jonathan Williams, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 11) Peer-Reviewed

  June 15, 2017313 words Author abstract, Bri... Total OH reactivity measurements were conducted on the Peking University campus (Beijing) in August 2013 and in Heshan (Guangdong province) from October to November 2014. The daily median OH reactivity was 20...

• Efficient N.sub.2O.sub.5 uptake and NO.sub.3 oxidation in the outflow of urban Beijing

  Authors:Haichao Wang, Keding Lu, Song Guo, Zhijun Wu, Dongjie Shang, Zhaofeng Tan, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 13) Peer-Reviewed

  July 10, 2018320 words Author abstract, Bri...

  Nocturnal reactive nitrogen compounds play an important role in regional air pollution. Here we present the measurements of dinitrogen pentoxide (N.sub.2 O.sub.5) associated with nitryl chloride (ClNO.sub.2) and...

• Ambient photolysis frequency of NO.sub.2 determined using chemical actinometer and spectroradiometer at an urban site in Beijing

  Authors:Qi Zou, Keding Lu, Yusheng Wu, Yudong Yang, Zhuofei Du, and Min HuFrom:Frontiers of Environmental Science & Engineering in China (Vol. 10, Issue 6) Peer-Reviewed

  Dec. 2016332 words Report

   Abstract Only

• Online gas- and particle-phase measurements of organosulfates, organosulfonates and nitrooxy organosulfates in Beijing utilizing a FIGAERO ToF-CIMS

  Authors:Michael Le Breton, Yujue Wang, Ravi Kant Pathak, Jing Zheng, Yudong Yang, Dongjie Shang, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 14) Peer-Reviewed

  July 19, 2018485 words Author abstract, Bri...

  A time-of-flight chemical ionization mass spectrometer (CIMS) utilizing the Filter Inlet for Gas and Aerosol (FIGAERO) was deployed at a regional site 40 km north-west of Beijing and successfully identified...

• Development of a portable cavity-enhanced absorption spectrometer for the measurement of ambient NO.sub.3 and N.sub.2O.sub.5: experimental setup, lab characterizations, and field applications in a polluted urban environment

  Authors:Haichao Wang, Jun Chen, and Keding LuFrom:Atmospheric Measurement Techniques (Vol. 10, Issue 4) Peer-Reviewed

  Apr. 19, 2017241 words Author abstract, Bri... A small and portable incoherent broadband cavity-enhanced absorption spectrometer (IBBCEAS) for NO.sub.3 and N.sub.2 O.sub.5 measurement has been developed. The instrument features a mechanically aligned non-adjustable...