Impact and pathway of halogens on atmospheric oxidants in coastal city clusters in the Yangtze River Delta region in China.

ABSTRACT: Halogens (chlorine, bromine, and iodine) are known to profoundly influence atmospheric oxidants (hydroxyl radical (OH), hydroperoxyl radical (HO₂), ozone (O₃), and nitrate radical (NO₃)) in the troposphere and subsequently affecting air quality. However, their impact on atmospheric oxidation and air pollution in coastal areas in China is poorly characterized. In this study, we use the WRF-CMAQ (Weather Research and Forecasting-Community Multiscale Air Quality) model with full halogen chemistry and process analysis to assess the influences and pathways of halogens on atmospheric oxidants in the Yangtze River Delta (YRD) region, a typical coastal city cluster in China. Halogens cause the annual OH radical increase by up to 16.4% and NO₃ decrease by

SUBMITTER: Chen H 

PROVIDER: S-EPMC11254322 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature