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Iodine oxoacids and their roles in sub-3 nm particle growth in polluted urban environments
Ying Zhang*, Duzitian Li*, Xu-Cheng He#, Wei Nie#, Chenjuan Deng, Runlong Cai, Yuliang Liu, Yishuo Guo, Chong Liu, Yiran Li, Liangduo Chen, Yuanyuan Li, Chenjie Hua, Tingyu Liu, Zongcheng Wang, Jiali Xie, Lei Wang, Tuukka Petäjä, Federico Bianchi, Ximeng Qi, Xuguang Chi, Pauli Paasonen, Yongchun Liu, Chao Yan, Jingkun Jiang, Aijun Ding, and Markku Kulmala in Atmospheric Chemsitry and Physics, 2024.
Our work for the first time reports long-term observations of iodine oxoacids at two urban sites, revealing their ubiquitous presence in inland regions with peak concentrations (up to 0.1 pptv) in summer. Moreover, Iodic acid is identified as a notable contributor to sub-3 nm particle growth and particle survival probability.
Field Evidence of Nocturnal Multiphase Production of Iodic Acid
Duzitian Li, Wei Nie#, Yuliang Liu, Chao Yan, Dafeng Ge, Qiaozhi Zha, Chong Liu, Jinbo Wang, Jiaping Wang, Lei Wang, Tengyu Liu, Xuguang Chi and Aijun Ding in Environmental Science & Technology Letters, 2024.
Our work reports continuous nocturnal production of iodic acid (HIO3) in urban air. The production of HIO3 also implies reactive iodine cycling without photo-activation of precursors via iodine partitioning between gas- and particle-phase.
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