Temporal variations in health risk indices and combustion-derived components of PM_1.0: Focus on terephthalate and levoglucosan.

ABSTRACT: This study evaluated the health risks and chemical composition of PM_1.0 and PM_2.5 in Incheon, South Korea, emphasizing the critical role of particle size in public health impacts. The average concentrations were 10.89 μg/m³ for PM_2.5 and 8.11 μg/m³ for PM_1.0. PM_1.0 displayed higher proportions of carbonaceous components and water-soluble ions, predominantly formed through photochemical reactions and atmospheric chemistry processes. Health risk assessments, using the Benzo [a]pyrene toxic equivalency factor, mutagenic and carcinogenic potential, risk index, and oxidative potential (DTT-OP), indicated that PM_1.0 poses significantly higher health risks per unit mass compared to PM_2.5. Key components in PM_1.0

SUBMITTER: Song M 

PROVIDER: S-EPMC11600074 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature