Articles | Volume 19, issue 17
https://doi.org/10.5194/acp-19-11267-2019
https://doi.org/10.5194/acp-19-11267-2019
Research article
 | 
06 Sep 2019
Research article |  | 06 Sep 2019

Ozone enhancement due to the photodissociation of nitrous acid in eastern China

Xuexi Tie, Xin Long, Guohui Li, Shuyu Zhao, Junji Cao, and Jianming Xu

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Cited articles

Bian, H., Han, S. Q., Tie, X., Shun, M. L., and Liu, A. X.: Evidence of Impact of Aerosols on Surface Ozone Concentration: A Case Study in Tianjin, China, Atmos. Environ., 41, 4672–4681, 2007. 
Deng, X. J, Tie, X., Wu, D., Zhou, X. J., Tan, H. B., Li, F., and Jiang, C.: Long-term trend of visibility and its characterizations in the Pearl River Delta Region (PRD), China, Atmos. Environ., 42, 1424–1435, 2008. 
Geng, F. H., Zhao, C. S., Tang, X., Lu, G. L., and Tie, X.: Analysis of ozone and VOCs measured in Shanghai: A case study, Atmos. Environ., 41, 989–1001, 2007. 
Geng, F. H., Cai, C. G., Tie, X., Yu, Q., An, J. L., Peng, L., Zhou, G. Q., and Xu, J. M.: Analysis of VOC emissions using PCA/APCS receptor model at city of Shanghai, China, J. Atmos. Chem., 62, 229–247, https://doi.org/10.1007/s10874-010-9150-5, 2010. 
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This study shows that there were often co-occurrences of high PM2.5 and O3 concentrations, which were related to high HONO, in eastern China. This result suggests that high daytime HONO can be photodissociated to OH radicals, enhancing the chemical production of O3 and suggesting that under high aerosol conditions, the chemical oxidizing process for O3 production can occur in eastern China.
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