Fundamental studies of ‘new’ nitrogen chemistry

Reactive nitrogen compounds play important roles in atmospheric chemistry and biogeochemical cycle. They impact air quality including NO2 pollution at roadside and urban center and ozone and haze on a regional scale. In the past decades, research has revealed key knowledge gaps sources/processes of nitrous acid (HONO) and uptake of dinitrogen peroxide (N2O5) and their impact on the atmospheric oxidative capacity and production of secondary pollutants. Since 2010, our team has systemically studied sources/processes and impact of these compounds using integrative approaches.

Related References:

1. Wang, Z. *, W. H. Wang, Y. J. Tham, Q. Y. Li, H. Wang, L. Wen, X. F. Wang, and T. Wang. "Fast Heterogeneous N2o5 Uptake and Clno2 Production in Power Plant and Industrial Plumes Observed in the Nocturnal Residual Layer over the North China Plain." Atmospheric Chemistry and Physics 17, no. 20 (Oct 2017): 12361-78.
   http://dx.doi.org/10.5194/acp-17-12361-2017.
   
   
2. Yun, H., Z. Wang, Q. Z. Zha, W. H. Wang, L. K. Xue, L. Zhang, Q. Y. Li, L. Cui, S. C. Lee, S. C. N. Poon, and T. Wang*. "Nitrous Acid in a Street Canyon Environment: Sources and Contributions to Local Oxidation Capacity." Atmospheric Environment 167 (Oct 2017): 223-34. http://dx.doi.org/10.1016/j.atmosenv.2017.08.018.
   
   
3. Zhang, L., Q. Y. Li, T. Wang*, R. Ahmadov, Q. Zhang, M. Li, and M. Y. Lv. "Combined Impacts of Nitrous Acid and Nitryl Chloride on Lower-Tropospheric Ozone: New Module Development in Wrf-Chem and Application to China." Atmospheric Chemistry and Physics 17, no. 16 (Aug 2017): 9733-50. http://dx.doi.org/10.5194/acp-17-9733-2017.
   
   
4. Ma, Q. X., T. Wang*, C. Liu, H. He, Z. Wang, W. H. Wang, and Y. T. Liang. "So2 Initiates the Efficient Conversion of No2 to Hono on Mgo Surface." Environmental Science & Technology 51, no. 7 (Apr 2017): 3767-75. http://dx.doi.org/10.1021/acs.est.6b05724.
   
   
5. Liang, Y. T., Q. Z. Zha, W. H. Wang, L. Cui, K. H. Lui, K. F. Ho, Z. Wang, S. C. Lee, and T. Wang*. "Revisiting Nitrous Acid (Hono) Emission from on-Road Vehicles: A Tunnel Study with a Mixed Fleet." Journal of the Air & Waste Management Association 67, no. 7 (2017): 797-805. http://dx.doi.org/10.1080/10962247.2017.1293573.
6. Tham, Y. J., Z. Wang, Q. Y. Li, H. Yun, W. H. Wang, X. F. Wang, L. K. Xue, K. D. Lu, N. Ma, B. Bohn, X. Li, S. Kecorius, J. Gross, M. Shao, A. Wiedensohler, Y. H. Zhang, and T. Wang*. "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." Atmospheric Chemistry and Physics 16, no. 23 (Dec 2016): 14959-77. http://dx.doi.org/10.5194/acp-16-14959-2016.
   
   
7. Li, Q. Y., L. Zhang, T. Wang*, Y. J. Tham, R. Ahmadov, L. K. Xue, Q. Zhang, and J. Y. Zheng. "Impacts of Heterogeneous Uptake of Dinitrogen Pentoxide and Chlorine Activation on Ozone and Reactive Nitrogen Partitioning: Improvement and Application of the Wrf-Chem Model in Southern China." Atmospheric Chemistry and Physics 16, no. 23 (Dec 2016): 14875-90. http://dx.doi.org/10.5194/acp-16-14875-2016.
   
   
8. Zhang, L., T. Wang*, Q. Zhang, J. Y. Zheng, Z. Xu, and M. Y. Lv. "Potential Sources of Nitrous Acid (Hono) and Their Impacts on Ozone: A Wrf-Chem Study in a Polluted Subtropical Region." Journal of Geophysical Research-Atmospheres 121, no. 7 (Apr 2016): 3645-62. http://dx.doi.org/10.1002/2015jd024468.
   
   
9. Brown, S. S. *, W. P. Dube, Y. J. Tham, Q. Z. Zha, L. K. Xue, S. Poon, Z. Wang, D. R. Blake, W. Tsui, D. D. Parrish, and T. Wang. "Nighttime Chemistry at a High Altitude Site above Hong Kong." Journal of Geophysical Research-Atmospheres 121, no. 5 (Mar 2016): 2457-75. http://dx.doi.org/10.1002/2015jd024566.
   
   
10. Wang, T. *, Y. J. Tham, L. K. Xue, Q. Y. Li, Q. Z. Zha, Z. Wang, S. C. N. Poon, W. P. Dube, D. R. Blake, P. K. K. Louie, C. W. Y. Luk, W. Tsui, and S. S. Brown. "Observations of Nitryl Chloride and Modeling Its Source and Effect on Ozone in the Planetary Boundary Layer of Southern China." Journal of Geophysical Research-Atmospheres 121, no. 5 (Mar 2016): 2476-89. http://dx.doi.org/10.1002/2015jd024556.
    
    
11. Xu, Z., T. Wang*, J. Q. Wu, L. K. Xue, J. Chan, Q. Z. Zha, S. Z. Zhou, P. K. K. Louie, and C. W. Y. Luk. "Nitrous Acid (Hono) in a Polluted Subtropical Atmosphere: Seasonal Variability, Direct Vehicle Emissions and Heterogeneous Production at Ground Surface." Atmospheric Environment 106 (Apr 2015): 100-09. http://dx.doi.org/10.1016/j.atmosenv.2015.01.061.
    
    
12. Zha, Q. Z., L. K. Xue, T. Wang*, Z. Xu, C. P. Yeung, P. K. K. Louie, and C. W. Y. Luk. "Large Conversion Rates of No2 to Hno2 Observed in Air Masses from the South China Sea: Evidence of Strong Production at Sea Surface?" Geophysical Research Letters 41, no. 21 (Nov 2014): 7710-15.
    http://dx.doi.org/10.1002/2014gl061429.
    
    
13. Tham, Y. J., C. Yan, L. K. Xue, Q. Z. Zha, X. F. Wang, and T. Wang*. "Presence of High Nitryl Chloride in Asian Coastal Environment and Its Impact on Atmospheric Photochemistry." Chinese Science Bulletin 59, no. 4 (Feb 2014): 356-59. http://dx.doi.org/10.1007/s11434-013-0063-y.
    
    
14. Wang, X., T. Wang*, C. Yan, Y. J. Tham, L. Xue, Z. Xu, and Q. Zha. "Large Daytime Signals of N2o5 and No3 Inferred at 62 Amu in a Td-Cims: Chemical Interference or a Real Atmospheric Phenomenon?" Atmospheric Measurement Techniques 7, no. 1 (2014): 1-12. http://dx.doi.org/10.5194/amt-7-1-2014.