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Home > People > Faculty

Division of Air Pollution and Its Control

AN Zhaojin
Associate Professor
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Location: School of Environment, Tsinghua University, Beijing 100084, China

Education Background

2012.9 – 2016.6 B.S. in Environmental Engineering, Nanjing University, China

2016.9 – 2022.1 Ph.D. in Environmental Science and Engineering, Tsinghua University, China

Experience

2025.08–Present, Associate Professor, School of Environment, Tsinghua University, China

2023.12–2025.07, Postdoctoral Fellow, School of Engineering and Applied Sciences, Harvard University, USA

2022.01–2025.08, Postdoctoral Fellow, School of Environment, Tsinghua University, China

Area of Research Interest

Development and application of online mass spectrometry for measuring atmospheric pollutants, characterization and environmental effects of atmospheric organic compounds, and chemical synthesis and application of atmospheric organic reference standards.

Academic Acheivements

Selected Publications (#co-first author,*corresponding author)

2025

1. Xuehui He, Ping Zeng, Yanping Zhu, Shan Xu, Haoqian Wang, Yibei Wan, Chunyu Xu, Zongyao Lu, Xiaomeng Guo, Ziwei La, Lele Sa, Rujing Yin, Zhaojin An, Yanqun Liu, Huan Yu, Jingkun Jiang, Xiaoxiao Li*, and Hairong Cheng* (2025). The significant contribution of biomass burning to methanol-soluble nitrogenous organics and its evolution during the highly-humid haze event in urban Wuhan. npj Climate and Atmospheric Science, 8:244.

2. Zhaojin An, Dongbin Wang*, Shuwen Yang, Jianguo Deng, Xue Li, Jingkun Jiang*. Organic fingerprints of condensable particulate matter from ultralow emission stationary sources in China (2025). ACS ES&T Air, 2, 692-699.

3. Yu Wang#, Zhaojin An#, Youhua Zhao, Hao Yu, Guodong Hou, Yuke Cui, Wuyue Luo, Qianhe Dong, Pengtuan Hu, Leicheng Zhao, Zhiguo Cao, Xue Li*, Jingkun Jiang*. PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) in urban Beijing during heating season: hourly variations, sources, and health risks (2025). Atmospheric Environment, 349, 121126.

2024

1. Zhaojin An, Rujing Yin, Xinyan Zhao, Xiaoxiao Li, Yi Yuan, Junchen Guo, Yuyang Li, Xue Li, Dandan Li, Yaowei Li, Dongbin Wang, Chao Yan, Kebin He, Douglas R. Worsnop, Frank N. Keutsch, Jingkun Jiang* (2024). Molecular and seasonal characteristics of organic vapors in urban Beijing: insights from Vocus-PTR measurements. Atmospheric Chemistry and Physics, 24, 13793–13810.

2. Yuyang Li, Runlong Cai, Rujing Yin, Xiaoxiao Li, Yi Yuan, Zhaojin An, Junchen Guo, Dominik Stolzenburg, Markku Kulmala, Jingkun Jiang* (2024). A kinetic partitioning method for simulating the condensation mass flux of organic vapors in a wide volatility range. Journal of Aerosol Science, 180, 106400.

2022

1. Zhaojin An#, Xue Li#, Yi Yuan, Fengkun Duan & Jingkun Jiang* (2022). Large contribution of non-priority PAHs in atmospheric fine particles: insights from time-resolved measurement and nontarget analysis. Environment International, 163, 107193.

2. Xue Li#, Zhaojin An#, Yicheng Shen, Yi Yuan, Fengkun Duan & Jingkun Jiang* (2022). Dynamic variations of phthalate esters in PM2.5 during a pollution episode. Science of the Total Environment, 810, 152269.

3. Dong Chen, Zhaojin An, Qiuyue Zhao, Sijia Xia, Li Li & Miao Guan* (2022). Study of variations in mass absorption efficiency of elemental carbon influenced by different measurement techniques and vehicle emission. Frontiers in Environmental Science, 9, 812039

2021

1. Zhaojin An, Xue Li, Zongbo Shi, Brent J. Williams, Roy M. Harrison & Jingkun Jiang* (2021). Frontier review on comprehensive two-dimensional gas chromatography for measuring organic aerosol. Journal of Hazardous Materials Letters, 2, 100013.

2020

1. Zhaojin An, Haixia Ren, Mo Xue, Xiaosheng Guan & Jingkun Jiang* (2020). Comprehensive two-dimensional gas chromatography mass spectrometry with a solid-state thermal modulator for in-situ speciated measurement of organic aerosols. Journal of Chromatography A, 1625, 461336.

2019

1. Haixia Ren, Mo Xue, Zhaojin An & Jingkun Jiang* (2019). Improving thermal desorption aerosol gas chromatography using a dual-trap design. Journal of Chromatography A, 1599, 247-252.

2. Haixia Ren, Mo Xue, Zhaojin An, Wei Zhou & Jingkun Jiang* (2019). Quartz filter-based thermal desorption gas chromatography mass spectrometry for in-situ molecular level measurement of ambient organic aerosols. Journal of Chromatography A, 1589, 141-148.