The impact of chlorine chemistry combined with heterogeneous N<sub>2</sub>O<sub>5</sub> reactions on air quality in China

Abstract N 2 O 5 N 2 O 5 + Cl chemistry) plays a key role in chlorine activation, NO x O 3 PM 2.5 N 2 O 5 + Cl chemistry (i.e., the uptake coefficient of N 2 O 5 γ N 2 O 5 ClNO 2 φ ClNO 2)) to investigate the impacts of chlorine chemistry on air quality in China, the role of the heterogeneous N 2 O 5 + Cl chemistry, and the sensitivity of air pollution formation to chlorine emissions and parameterizations for γ N 2 O 5 φ ClNO 2 N 2 O 5 ClNO 2 N 2 O 5 + Cl chemistry relative to the default model. The simulations show that total tropospheric chlorine chemistry could increase annual mean maximum daily 8 h average (MDA8) O 3 ppbv but decrease PM 2.5 µ g m - 3 in China, 83 % and 90 % of which could be attributed to the effect of the heterogeneous N 2 O 5 + Cl chemistry. The heterogeneous uptake of N 2 O 5 N 2 O 5 O 3 N 2 O 5 + Cl chemistry. With the additional chlorine emissions, the simulations show that annual MDA8 O 3 ppbv. The corresponding effect on PM 2.5 µ g m - 3 in the North China Plain but a decrease of up to 3.7 µ g m - 3 in the Sichuan Basin. On the other hand, even with the same chlorine emissions, the effects on MDA8 O 3 PM 2.5 in China could differ by 48 % and 27 %, respectively, between different parameterizations.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
The impact of chlorine chemistry combined with heterogeneous N2O5 reactions on air quality in China ; volume:22 ; number:6 ; year:2022 ; pages:3743-3762 ; extent:20
Atmospheric chemistry and physics ; 22, Heft 6 (2022), 3743-3762 (gesamt 20)

Urheber
Yang, Xiajie
Wang, Qiaoqiao
Ma, Nan
Hu, Weiwei
Gao, Yang
Huang, Zhijiong
Zheng, Junyu
Yuan, Bin
Yang, Ning
Tao, Jiangchuan
Hong, Juan
Cheng, Yafang
Su, Hang

DOI
10.5194/acp-22-3743-2022
URN
urn:nbn:de:101:1-2022032404265864748949
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:20 MESZ

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Beteiligte

  • Yang, Xiajie
  • Wang, Qiaoqiao
  • Ma, Nan
  • Hu, Weiwei
  • Gao, Yang
  • Huang, Zhijiong
  • Zheng, Junyu
  • Yuan, Bin
  • Yang, Ning
  • Tao, Jiangchuan
  • Hong, Juan
  • Cheng, Yafang
  • Su, Hang

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