Articles | Volume 20, issue 9
Atmos. Chem. Phys., 20, 5425–5436, 2020
https://doi.org/10.5194/acp-20-5425-2020
Atmos. Chem. Phys., 20, 5425–5436, 2020
https://doi.org/10.5194/acp-20-5425-2020

Research article 08 May 2020

Research article | 08 May 2020

Origin and transformation of ambient volatile organic compounds during a dust-to-haze episode in northwest China

Yonggang Xue et al.

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Latest update: 27 Sep 2021
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Short summary
Particulate active metallic oxides in dust were proposed to influence the photochemical reactions of ambient volatile organic compounds (VOCs). A case study investigated the origin and transformation of VOCs during a windblown dust-to-haze pollution episode. In the dust event, a sharp decrease in VOC loading and aging of their components was observed. An increase in Ti and Fe and a fast decrease in trans-/cis-2-butene ratios demonstrated that dust can accelerate the oxidation of ambient VOCs.
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