Adjoint analysis of PM_2.5 and O₃ episodes in priority control zones in China.

ABSTRACT: Understanding and mitigating PM2.5 and ozone (O3) pollution remains challenging due to the nonlinear atmospheric chemistry and spatially heterogeneous nature of pollutant emissions. Traditional forward modeling approaches suffer from high computational cost and limited diagnostic resolution to precisely attribute emissions sources at fine spatial, temporal, and chemical scales. Adjoint modeling has emerged as an efficient alternative, enabling high-resolution, multi-pollutant source attribution in a single integrated framework; however, its application to simultaneous PM2.5-O3 pollution episodes is limited, particularly in densely populated regions experiencing complex co-pollutant interactions. Here we apply a newly developed multiphase adjoint of the Community Multiscale Air Quality (CMA

SUBMITTER: Zhang R 

PROVIDER: S-EPMC12362701 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature