Trends in the sizes and carbonaceous fractions of primary emitted particulate matter in China from 1960 to 2019.

ABSTRACT: The health impacts of particulate matter (PM) depend on its concentration, size and composition. Herein, we quantified the changes in the emissions of primary PM_2.5, PM_2.5-10 and PM_>10 with aerodynamic diameters of <2.5 μm, 2.5-10 μm and >10 μm, respectively, black carbon (BC), and organic carbon (OC) to address the changes and driving factors. The temporal trends of PM emissions follow Kuznets curves, with 1995 as the peak year when the gross domestic product per capita was only US$1023, showing a late-mover advantage. The fractions of PM_2.5 : PM_2.5-10 : PM_>10 and BC : OC : non-carbonaceous-PM_2.5 from various sectors varied following different trajectories. The mass fractions of PM_2.5 : PM_2.5-10</

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC11831801 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature