Underestimated benefits of NO_(x) control in reducing SNA and O_(3) based on missing heterogeneous HONO sources

作     者：Shuping Zhang Haotian Zheng Jun Liu Yao Shi Tianzeng Chen Chaoyang Xue Fenfen Zhang Yueqi Jiang Xiangping Zhang Shovan Kumar Sahu Biwu Chu Jia Xing Shuping Zhang;Haotian Zheng;Jun Liu;Yao Shi;Tianzeng Chen;Chaoyang Xue;Fenfen Zhang;Yueqi Jiang;Xiangping Zhang;Shovan Kumar Sahu;Biwu Chu;Jia Xing

作者机构：State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China China Academy of Civil Aviation Science and TechnologyBeijing 100028China State Key Joint Laboratory of Environment Simulation and Pollution ControlResearch Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Yellow River Institute of Hydraulic ResearchZhengzhou 450003China Centre for Climate Research SingaporeMeteorological Service SingaporeSingapore 537054Singapore 

出 版 物：《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿（英文）)

年 卷 期：2024年第18卷第3期

页      面：57-67页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：supported by the Innovation Platform for Academicians of Hainan Province(No.YSPTZX202205) the National Key Research and Development Program of China(No.2022YFC3703404) the National Natural Science Foundation of China(No.22276205) the Excellent Young Talents Project of Yellow River Conservancy Commission(No.HQK-202313) the Research and Development Project of Yellow River Institute of Hydraulic Research(No.HKY-YF-2022-02) 

主　　题：Heterogeneous HONO NO_(x) reduction PM_(2.5) O_(3) 

摘      要：Substantial NO_(x) emission mitigation is crucial for the synergistic reduction of particulate matter and ozone(O_(3))pollution in *** traditional air quality model does not consider heterogeneous HONO chemistry,leading to uncertainties in estimating the benefits of NO_(x) *** studies have shown that the parameterization of heterogeneous HONO formation increases both the simulated value of sulfate–nitrate–ammonium(SNA)and that of O_(3),thus adding the heterogeneous reactions of HONO into air quality models inevitably leads to changes in the estimated benefits of NO_(x) *** we investigated the changes in SNA and O_(3)concentrations from NO_(x) emission reduction before and after adding heterogeneous HONO reactions in the Community Multi-Scale Air Quality(CMAQ)*** heterogeneous HONO reactions in the simulation improved the benefits of NO_(x) reduction in terms of SNA control in *** 80%NO_(x) reduction,the reduction in SNA increased from 36.9%without considering heterogeneous HONO reactions to 42.8%with heterogeneous HONO *** reduction in the maximum daily 8h average(MDA8)O_(3)in summer caused by NO_(x) reduction increased slightly from 4.7%to 5.2%after adding heterogeneous HONO *** results in this study highlight the enhanced effectiveness of NO_(x) controls for the reduction of SNA and O_(3)after considering heterogeneous HONO formation in a complex chemical ambient,demonstrating the importance of NO_(x) controls in reducing PM2.5 and O_(3)pollution in China.