Observation-Based Diagnostics of Reactive Nitrogen Recycling through HONO Heterogenous Production: Divergent Implications for Ozone Production and Emission Control DOI Creative Commons
Kezhen Chong, Yuhang Wang, Mingming Zheng

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(26), С. 11554 - 11567

Опубликована: Июнь 17, 2024

Understanding of nitrous acid (HONO) production is crucial to photochemical studies, especially in polluted environments like eastern China. In-situ measurements gaseous and particulate compositions were conducted at a rural coastal site during the 2018 spring Ozone Photochemistry Export from China Experiment (OPECE). This data set was applied investigate recycling reactive nitrogen through daytime heterogeneous HONO production. Although levels increase agricultural burning, analysis observation does not indicate more efficient by burning aerosols than other anthropogenic aerosols. Box 1-D modeling analyses reveal intrinsic relationships between dioxide (NO

Язык: Английский

The potentials of uncertainty analysis and Bayesian optimization in HONO source modeling diagnosis and improvement DOI
Jinlong Zhang,

Wending Wang,

Keyu Zhu

и другие.

Environmental Research, Год журнала: 2025, Номер unknown, С. 121494 - 121494

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Concentration and source changes of nitrous acid (HONO) during the COVID-19 lockdown in Beijing DOI Creative Commons
Yusheng Zhang,

Feixue Zheng,

Zemin Feng

и другие.

Atmospheric chemistry and physics, Год журнала: 2024, Номер 24(15), С. 8569 - 8587

Опубликована: Авг. 2, 2024

Abstract. Nitrous acid (HONO) is an important precursor of OH radicals which affects not only the sinks primary air pollutants but also formation secondary pollutants, its source closure in atmosphere still controversial due to a lack experiment validation. In this study, HONO budget Beijing has been analyzed and validated through coronavirus disease (COVID-19) lockdown event, resulted significant reduction pollutant emissions, providing rare opportunity understand atmosphere. We measured related from 1 January 6 March 2020, covered Chinese New Year (CNY) COVID-19 lockdown. The average concentration decreased 0.97 ± 0.74 ppb before CNY 0.53 0.44 during lockdown, accompanied by sharp drop NOx greatest NO (around 87 %). analysis suggests that vehicle emissions were most nighttime (53 17 %) CNY, well supported decline their contribution found heterogeneous conversion NO2 on ground surfaces was (31 5 %), while aerosol minor (2 Nitrate photolysis became daytime compared with resulting combined effect increase nitrate decrease NO. Our results indicate reducing should be effective measure for alleviating Beijing.

Язык: Английский

Процитировано

3
Observation-Based Diagnostics of Reactive Nitrogen Recycling through HONO Heterogenous Production: Divergent Implications for Ozone Production and Emission Control DOI Creative Commons
Kezhen Chong, Yuhang Wang, Mingming Zheng

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(26), С. 11554 - 11567

Опубликована: Июнь 17, 2024

Understanding of nitrous acid (HONO) production is crucial to photochemical studies, especially in polluted environments like eastern China. In-situ measurements gaseous and particulate compositions were conducted at a rural coastal site during the 2018 spring Ozone Photochemistry Export from China Experiment (OPECE). This data set was applied investigate recycling reactive nitrogen through daytime heterogeneous HONO production. Although levels increase agricultural burning, analysis observation does not indicate more efficient by burning aerosols than other anthropogenic aerosols. Box 1-D modeling analyses reveal intrinsic relationships between dioxide (NO

Язык: Английский

Процитировано

0