Anthropogenic emissions shape long-term changes in PM_2.5 concentrations and health risks in China.

ABSTRACT: China has experienced an initial increase and a subsequent decrease in fine particulate matter (PM_2.5) concentrations since the early 21st century, with substantial heterogeneity across different source contributions. This study developed a source-oriented CMAQ model to construct a source-resolved PM_2.5 concentration database for China during 2000-2020. Subsequently, source-specific health risks and the contributions of key driving factors were systematically evaluated using the piling-up decomposition method. The results indicate that anthropogenic emissions, particularly from industrial sources, were the primary drivers of both the increase in PM_2.5 from 2000 to 2012 (51.8%) and the subsequent decrease from 2012 to 2020 (47.6%). Currently, industrial sour

SUBMITTER: Wang Y 

PROVIDER: S-EPMC12664979 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature