Articles | Volume 21, issue 19
Atmos. Chem. Phys., 21, 14789–14814, 2021
https://doi.org/10.5194/acp-21-14789-2021
Atmos. Chem. Phys., 21, 14789–14814, 2021
https://doi.org/10.5194/acp-21-14789-2021
Research article
06 Oct 2021
Research article | 06 Oct 2021

Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NOx in eastern China

Yuliang Liu et al.

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Latest update: 26 Jan 2023
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Short summary
Oxygenated organic molecules (OOMs) are crucial intermediates linking volatile organic compounds to secondary organic aerosols. Using nitrate time-of-flight chemical ionization mass spectrometry in eastern China, we performed positive matrix factorization (PMF) on binned OOM mass spectra. We reconstructed over 1000 molecules from 14 derived PMF factors and identified about 72  % of the observed OOMs as organic nitrates, highlighting the decisive role of NOx in OOM formation in populated areas.
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