Admissions Major

Master's admissions major:

• Master of academic degree: 083000| Environmental science and engineering.

• Master of professional degree: 085700| Resources and environment.

Doctoral admissions major:

• Doctor of academic degree: 083000| Environmental science and engineering.

• Doctor of professional degree: 085700| Resources and environment.

Working experience

• 2015.12 - Present: Professor, South China University of Technology

• 2006.11 - 2015.11: Post Doctor, Associate Researcher, Research Assistant Professor, Hong Kong University of Science and Technology

Educational experience

• 09/2002 – 11/2006: PhD (Atmospheric Environmental Science), Hong Kong University of science and technology

• 09/1998 – 07/2002: Bachelor of Science (Chemistry) from Peking University

Field of research

• In recent years, due to the implementation of a series of emission reduction policies, the fine particulate matter (PM2.5) pollution in the main urban groups in China has been somehow improved. However, ozone pollution is becoming increasingly serious, which has attracted the attention of governments and the public. The experience of foreign countries shows that ozone treatment is more difficult than PM2.5, and it takes a long time. The current PM2.5 oriented control strategy adopted in China can not meet the demand for ozone control. After PM2.5 is up to the standard, the air pollution control of the main urban groups in China will surely shift to the focus of ozone control. Taking the near-surface ozone pollution in typical photochemical active areas such as Yangtze River Delta and Pearl River Delta as the core, Prof.Yuan focuses on the impact of the air oxidation evolution on the near-surface ozone pollution in the following aspects: the emission characteristics of reactive organic matter, the control mechanism of ozone nonlinear change and the influence of the evolution of atmospheric oxidation on the near-surface ozone pollution under the background of climate change.

1. quantification and verification of the source of atmospheric reactive organic matter

• Reactive organic compounds play an important role in the atmospheric chemical process and ozone generation, but their emission characteristics and chemical transformation have not been fully studied.

• For the two undeveloped areas in the current reactive organic source research: active component measurement and chemical transformation process correction, the chemical composition spectrum of the important emission sources of reactive organic matter in Yangtze River Region and Pearl River Region was improved with the help of source emission measurement, emission model and literature research. In particular, the missing key active components such as branched-chain olefins and reactive aldehydes in the existing reactive organic matter source spectrum were supplemented to build a localized database of reactive organic matter emission sources; After 2016, a list of high spatial-temporal resolution reactive organic matter emission sources in eastern China is constructed. For the important emission sources of reactive organic matter, the chemical transformation process of reactive organic matter in the atmosphere from source to receptor point was quantified. The method of verification of reactive component sources based on ground observation, model inversion and satellite remote sensing was established. The emission trend of reactive organic compounds in Yangtze River Region and Pearl River Region in the next 5-10 years is estimated.

2. study on the control mechanism of ozone nonlinear change in photochemical active area

• With the help of observation model, 3D air quality model and satellite remote sensing, the relative contribution of local generation and regional transmission to ozone in different regions of Yangtze River Region and Pearl River Region are quantitatively identified, indicating the nonlinear relationship between ozone and its precursors in different regions and their spatial and temporal changes, and the spatial distribution of VOC sensitive areas and NOx sensitive areas, as well as their transition zone under different meteorological conditions are revealed ; The FNR standard for VOC VOC sensitive areas, NOx sensitive areas and their transition zone in Yangtze River Region and Pearl River Region is clarified by using long-term satellite remote sensing data, and the long-term trend of ozone control mechanism is identified. The pattern of dividing sensitive areas of ozone generation is related with NOx and VOCs reduction. This provides scientific basis for controlling the frequency and intensity of ozone pollution events and formulating the medium and long-term ozone standard planning.

 3. the study on the influence of the evolution of atmospheric oxidation on ozone pollution near the ground under the background of climate change

• Ozone control usually takes decades, and the impact of climate change on ozone pollution on this time scale cannot be ignored. Based on the long-term monitoring results of several stations in Yangtze River Region and Pearl River Region, a conceptual model describing the relationship between ozone, NOx and environmental temperature is established to identify the effect of temperature on the ozone generation efficiency in different regions. The temperature factors are included in the dynamic system of emission source list, and the emission spectrum of some VOCs is sampled and analyzed in different environmental temperature, and the influence of temperature on the emission characteristics of VOCs is clarified; In the localized three-dimensional air quality model, the dynamic emission source list including temperature factors is applied and the environmental temperature is disturbed, the ozone climate compensation effect of the two regions is revealed. The functional relationship between temperature and ozone precursor response is established, which provides scientific basis for the two regions to formulate ozone control strategies under different climate change background.

Recent research projects

• The project 'Research on the impact of atmospheric oxidative evolution in photochemical active areas on near-surface ozone pollution under the background of climate change' from National Natural Science Foundation of China's joint major research program of 'causes, health effects and response mechanisms of atmospheric compound pollution' (91644221), 2.5 million yuan (direct cost), 2017.1-2020.12

• The pilot project 'quantification and verification of atmospheric reactive organic matter sources' from National key R & D plan 'Research on the causes of air pollution and control technology'  (2016yfc002201), 7.3 million yuan, 2016.7-2020.6

• The key project of scientific research plan of Shanghai Municipal Science and Technology Commission, 'study on nonlinear change control mechanism of ozone in Shanghai' (16dz204605), CNY 700000, 2016.7-2018.6

• Research on the estimation method of secondary organic aerosols in the Pearl River Region, a key project of basic scientific research business expenses in Central Universities of South China University of technology, CNY 200000, 2015.7-2017.6

Academic achievements

Recent representative publications:

1. Huang, Z.J., Hu, Y.T., Zheng, J.Y.*, Yuan, Z.B., Russell, A.G.*, Ou, J.M. and Zhong, Z.M. A new combined stepwise-based high-order decoupled direct and reduced-form method to improve uncertainty analysis in PM2.5 simulations, Environmental Science and Technology, 2017, 51, 3852-3859.

2. Zhong, Z.M., Sha, Q.E., Zheng, J.Y.*, Yuan, Z.B., Gao, Z.J., Ou, J.M., Zheng, Z.Y., Li, C. and Huang, Z.J. Sector-based VOCs emission factors and source profiles for the surface coating industry in the Pearl River Delta region of China, Science of the Total Environment, 2017, 583, 19-28.

3. Yin, X.H., Huang, Z.J., Zheng, J.Y.*, Yuan, Z.B., Zhu, W.B., Huang, X.B. and Chen, D.H. Source contributions to PM2.5 in Guangdong province, China by numerical modeling: results and implications, Atmospheric Research, 2017, 186, 63-71.

4. Ou, J.M., Yuan, Z.B.*, Zheng, J.Y.*, Huang, Z.J., Shao, M., Li, Z.K., Huang, X.B., Guo, H. and Louie, P.K.K. Ambient ozone control in a photochemically active region: short-term despiking or long-term attainment?, Environmental Science and Technology, 2016, 50, 5720-5728.

5. Xue, J., Yuan, Z.B., Griffith, M., Yu, X., Lau, A.K.H. and Yu, J.Z.* Sulfate formation enhanced by a cocktail of High NOx, SO2, particulate matter, and droplet pH during haze-fog events in megacities in China: an observation-based modeling investigation, Environmental Science and Technology, 2016, 50, 7325-7334.

6. Li, C., Yuan, Z.B., Ou, J.M., Fan, X.L., Ye, S.Q., Xiao, T., Shi, Y.Q., Huang, Z.J., Ng, S.K.W., Zhong, Z.M. and Zheng, J.Y.* An AIS-based high-resolution ship emission inventory and its uncertainty in the Pearl River Delta region, China, Science of the Total Environment, 2016, 573, 1-10.

7. Lin, C.Q., Li, C.C.*, Lau, A.K.H., Yuan, Z.B., Lu, X.C., Tse, K.T., Fung, J.C.H., Li, Y., Yao, T. and Su, L. Assessment of satellite-based aerosol optical depth using continuous lidar observation, Atmospheric Environment, 2016, 140, 273-282.

8. Yin, S.S., Zheng, J.Y.*, Lu, Q., Yuan, Z.B., Huang, Z.J., Zhong, L.J. and Lin, H. A refined 2010-based VOC emission inventory and its improvement on modeling regional ozone in the Pearl River Delta region, China, Science of the Total Environment, 2015, 154, 426-438.

9. Li, Z.Y., Yuan, Z.B.*, Lau, A.K.H. and Louie, P.K.K. Characterization and source apportionment of health risks from ambient PM10 in Hong Kong over 2000-2011, Atmospheric Environment, 2015, 122, 892-899.

10. Su, L., Yuan, Z.B.*, Fung, J.C.H. and Lau, A.K.H. A comparison of HYSPLIT backward trajectories generated from two GDAS datasets, Science of the Total Environment, 2015, 506-507, 527-537.

11. Lin, C.Q., Li, Y.*, Yuan, Z.B., Lau, A.K.H., Li, C.C. and Fung, J.C.H. Using satellite remote sensing data to estimate the high-resolution distribution of ground-level PM2.5, Remote Sensing of Environment, 2015, 56, 117-128.

12. Huang, Z.J., Wang, S.S., Zheng, J.Y.*, Yuan, Z.B., Ye, S.Q. and Kang, D.W. Modeling inorganic nitrogen deposition in Guangdong province, China, Atmospheric Environment, 2015, 109, 147-160.

13. Yin, S.S., Zheng, J.Y.*, Lu, Q., Yuan, Z.B., Huang, Z.J., Zhong, L.J. and Lin, H. A refined 2010-based VOC emission inventory and its improvement on modeling regional ozone in the Pearl River Delta region, China, Science of the Total Environment, 2015, 154, 426-438.

14. Xue, J., Yuan, Z.B.*, Yu, J.Z. and Lau, A.K.H. An observation-based model for secondary inorganic aerosols, Aerosol and Air Quality Research, 2014, 14, 862-878.

15. Xue, J., Yuan, Z.B., Lau, A.K.H. and Yu, J.Z.* Insights into factors affecting nitrate in PM2.5 in a polluted high NOx environment through hourly observations and size distribution measurements, Journal of Geophysical Research– Atmospheres, 2014, 119, 4888-4902.

16. Yu, X., Yuan, Z.B., Fung, J.C.H., Xue, J., Li, Y., Zheng, J.Y. and Lau, A.K.H.* Ozone changes in response to the heavy-duty diesel truck control in the Pearl River Delta, Atmospheric Environment, 2014, 88, 269-274.

17. Yuan, Z.B., Yadav, V., Turner, J.R., Louie, P.K.K. and Lau, A.K.H.* Long-term trends of ambient particulate matter emission source contributions and the accountability of control strategies in Hong Kong over 1998-2008, Atmospheric Environment, 2013, 76, 21-31.

18. Yuan, Z.B., Zhong, L.J., Lau, A.K.H.*, Yu, J.Z. and Louie, P.K.K. Volatile organic compounds in the Pearl River Delta: Identification of source regions and recommendation for emission-oriented monitoring strategies, Atmospheric Environment, 2013, 76, 162-172.

19. Zhong, L.J., Louie, P.K.K.*, Zheng, J.Y., Wai, K.M., Ho, J.W.K., Yuan, Z.B., Lau, A.K.H., Yue, D.L. and Zhou, Y. The Pearl River Delta regional air quality monitoring network– regional collaborative efforts on joint air quality management, Aerosol and Air Quality Research, 2013, 13, 1582-1597.

20. Deng, X.J.*, Wu, D., Yu, J.Z., Lau, A.K.H., Li, F., Tan, H.B., Yuan, Z.B., Ng, W.M., Deng, T., Wu, C. and Zhou, X.J. Characterization of secondary aerosol and its extinction effects on visibility over the Pearl River Delta Region, China, Journal of Air and Waste Management Association, 2013, 63, 1012-1021.

21. Zhong, L.J., Louie, P.K.K.*, Zheng, J.Y., Yuan, Z.B., Yue, D.L., Ho, J.W.K. and Lau, A.K.H. Science-policy interplay: Air quality management in the Pearl River Delta and Hong Kong, Atmospheric Environment, 2013, 76, 3-10.

22. Lu, Q., Zheng, J.Y.*, Ye, S.Q., Shen, X.L., Yuan, Z.B. and Yin, S.S. Emission trends and source characteristics of SO2, NOx, PM10 and VOCs in the Pearl River Delta region from 2000 to 2009, Atmospheric Environment, 2013, 76, 11-20.

23. Louie, P.K.K.*, Ho, J.W.K., Tsang, R.C.W., Blake, D.R., Lau, A.K.H., Yu, J.Z., Yuan, Z.B., Wang, X.M., Shao, M. and Zhong, L.J. VOCs and OVOCs distribution and control policy implications in Pearl River Delta region, China, Atmospheric Environment, 2013, 76, 125-135.

24. Li, Y.C., Yu, J.Z.*, Ho, S.S.H., Schauer, J.J., Yuan, Z.B., Lau, A.K.H. and Louie, P.K.K. Chemical characteristics and source apportionment of fine particulate organic carbon in Hong Kong during high particulate matter episodes in winter 2003, Atmospheric Research, 2013, 120, 88-98.

25. Li, Y.C., Yu, J.Z.*, Ho, S.S.H., Yuan, Z.B., Lau, A.K.H. and Huang, X.F. Chemical characteristics of PM2.5and organic aerosol source analysis during cold front episodes in Hong Kong, China, Atmospheric Research, 2012, 118, 41-51.

26. Zheng, J.Y.*, He, M., Shen, X.L., Yin, S.S. and Yuan, Z.B. High resolution of black carbon and organic carbon emissions in the Pearl River Delta region, China, Science of the Total Environment, 2012, 438, 189-200.

27. Lau, A.K.H., Yuan, Z.B.*, Yu, J.Z. and Louie, P.K.K. Source apportionment of ambient volatile organic compounds in Hong Kong, Science of the Total Environment, 2010, 408, 4138-4149

28. Yuan, Z.B., Lau, A.K.H.*, Shao,M., Louie, P.K.K., Liu, S.C. and Zhu, T. Source analysis of volatile organic compounds by positive matrix factorization in urban and rural environments in Beijing, Journal of Geophysical Research, 2009, 114,doi:10.1029/2008JD011190

29. Huang, X.F., Yu, J.Z.*, Yuan, Z.B., Lau, A.K.H. and Louie, P.K.K. Source analysis of high particulate matter days in Hong Kong, Atmospheric Environment, 2009, 43, 1196-1203.

30. Yuan, Z.B., Lau, A.K.H.*, Zhang, H.Y., Yu, J.Z., Louie, P.K.K. and Fung, J.C.H. Identification and spatiotemporal variation of dominant PM10sources over Hong Kong, Atmospheric Environment, 2006, 40, 1803-1815

31. Yuan, Z.B., Yu, J.Z.*, Lau, A.K.H., Louie, P.K.K. and Fung, J.C.H. Application of positive matrix factorization in estimating aerosol secondary organic carbon in Hong Kong and its relationship with secondary sulfate, Atmospheric Chemistry and Physics, 2006, 6, 25-34

32. Huang, X.F., Yu, J.Z.*, He, L.Y. and Yuan, Z.B. Water-soluble organic carbon and oxalate in aerosols at a coastal urban site in China: Size distribution characteristics, sources and formation mechanisms, Journal of Geophysical Research, 2006, 111,doi:10.1029/2006JD007408

33. Lo, J.C.F., Lau, A.K.H.*, Yuan, Z.B., Chen, F. and Fung, J.C.H. A physical modeling approach for identification of source regions of air pollutants, Atmospheric Chemistry and Physics Discussions, 2006, 6, 6467-6496

34. 34．Li, C.C., Mao, J.T.*, Lau, A.K.H., Yuan, Z.B., Wang, M.H. and Liu, X.Y. Application of MODIS satellite products to the air pollution research in Beijing, Science in China Series D– Earch Sciences, 2005, 48, Suppl. 2, 209-219

35. Li, C.C., Mao, J.T.*, Lau, A.K.H., Chen, J.C., Yuan, Z.B., Liu, X.Y., Zhu, A.H. and Liu, G.Q. Characteristics of distribution and seasonal variation of aerosol optical depth in eastern China with MODIS products, Chinese Science Bulletin, 2003, 48, 2488-2495

36. Fung, J.C.H.*, Lau, A.K.H., Lam, J.S.L. and Yuan, Z.B. Observational and modeling analysis of a severe air pollution episode in western Hong Kong. Journal of Geophysical Research, 2003, 110,doi: 10.1029/2004JD005105