Combustion-related isoprene contributes substantially to the formation of wintertime secondary organic aerosols.

ABSTRACT: Isoprene is a key reactive organic gas involved in organic aerosol formation. While biogenic isoprene from terrestrial plants has been extensively studied and is recognized as a major contributor to secondary organic aerosol (SOA), high levels of observed SOA, especially in winter, cannot be fully explained by biogenic isoprene alone. In this study, we developed a comprehensive bottom-up emission inventory for isoprene, incorporating both biogenic and combustion sources and modeling their contributions to SOA in China from 2000 to 2016. Combustion-related isoprene emissions from open biomass burning and residential fuel combustion were estimated at 52.0 (39.1-65.7) Gg in 2000, declining to 14.8 (10.6-19.0) Gg by 2016. Open biomass burning contributes ∼40% of combustion-related isoprene emi

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC11827594 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature