Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Reducing Soil-Emitted Nitrous Acid as a Feasible Strategy for Tackling Ozone Pollution

Chaoyang Xue, Can Ye, Keding Lu, Pengfei Liu, Chenglong Zhang, Hang Su, Fengxia Bao, Yafang Cheng, Wenjie Wang, Yuhan Liu, Valéry Catoire, Zhuobiao Ma, Xiaoxi Zhao, Yifei Song, Xuefei Ma, Max R. McGillen, Abdelwahid Mellouki, Yujing Mu, Yuanhang Zhang

Environmental Science & Technology · 2024

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Summary

Severe ozone (O<sub>3</sub>) pollution has been a major air quality issue and affects environmental sustainability in China. Conventional mitigation strategies focusing on reducing volatile organic compounds and nitrogen oxides (NO<sub><i>x</i></sub>) remain complex and challenging. Here, through field flux measurements and laboratory simulations, we observe substantial nitrous acid (HONO) emissions (<i>F</i><sub>HONO</sub>) enhanced by nitrogen fertilizer application at an agricultural site. The observed <i>F</i><sub>HONO</sub> significantly improves model performance in predicting atmospheric HONO and leads to regional O<sub>3</sub> increases by 37%. We also demonstrate the significant potential of nitrification inhibitors in reducing emissions of reactive nitrogen, including HONO and NO

Source type
Peer-reviewed study
DOI
10.1021/acs.est.4c01070
Catalogue ID
SNmoht1xk5-2lobrl
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