Articles | Volume 20, issue 4
Atmos. Chem. Phys., 20, 2513–2532, 2020
https://doi.org/10.5194/acp-20-2513-2020
Atmos. Chem. Phys., 20, 2513–2532, 2020
https://doi.org/10.5194/acp-20-2513-2020

Research article 02 Mar 2020

Research article | 02 Mar 2020

Molecular compositions and optical properties of dissolved brown carbon in biomass burning, coal combustion, and vehicle emission aerosols illuminated by excitation–emission matrix spectroscopy and Fourier transform ion cyclotron resonance mass spectrometry analysis

Jiao Tang et al.

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Latest update: 20 Jan 2022
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Short summary
We investigated the light absorption, fluorescence, and molecular composition of dissolved organic carbon from the simulated combustion of biomass and coal and vehicle emissions with UV–vis spectra, EEM-PARAFAC, and FT-ICR MS. We observed high light absorption capacity from source emissions, and fluorescence spectra and molecular structures varied by source. We concluded that an EEM- and molecular-composition-based methodology could be helpful in the source apportionment of atmospheric aerosols.
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