Articles | Volume 20, issue 9
Research article
11 May 2020
Research article |  | 11 May 2020

Contribution of nitrous acid to the atmospheric oxidation capacity in an industrial zone in the Yangtze River Delta region of China

Jun Zheng, Xiaowen Shi, Yan Ma, Xinrong Ren, Halim Jabbour, Yiwei Diao, Weiwei Wang, Yifeng Ge, Yuchan Zhang, and Wenhui Zhu


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Short summary
A high level of nitrous acid (HONO) is formed from NOx emitted by industrial activities; this HONO then promotes secondary air pollutant (e.g., aerosol and O3) formation within these plumes by contributing to free-radical production. Heterogeneous reactions on aerosol surfaces are found to be one of the major formation routes of HONO. Therefore, HONO plays a synergic role in haze formation in heavily industrialized areas.
Final-revised paper