Fossil and non-fossil sources of the carbonaceous component of PM_2.5 in forest and urban areas.

ABSTRACT: Atmospheric particulate matter (PM_2.5) can damage human health. Biogenic organic compounds emitted from trees may increase the concentration of PM_2.5 via formation of secondary aerosols. Therefore, the role of biogenic emissions in PM_2.5 formation and the sources of PM_2.5 need to be investigated. Dual carbon isotope and levoglucosan analyses are powerful tools to track the sources of total carbon (TC) in PM_2.5. We collected a total of 47 PM_2.5 samples from 2019 to 2020 inside a pine forest and in urban areas in South Korea. The average δ¹³C and Δ¹⁴C of TC in PM_2.5 at the Taehwa Research Forest (TRF) were - 25.7 and - 380.7‰, respectively, which were not significantly different from those coll

SUBMITTER: Cha JY 

PROVIDER: S-EPMC10073123 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature