Articles | Volume 21, issue 6
Atmos. Chem. Phys., 21, 4939–4958, 2021
https://doi.org/10.5194/acp-21-4939-2021
Atmos. Chem. Phys., 21, 4939–4958, 2021
https://doi.org/10.5194/acp-21-4939-2021

Research article 30 Mar 2021

Research article | 30 Mar 2021

Spatiotemporal variation, sources, and secondary transformation potential of volatile organic compounds in Xi'an, China

Mengdi Song et al.

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Latest update: 06 Dec 2021
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Short summary
Due to their lower diffusion capacities and higher conversion capacities, urban areas in Xi’an experienced severe ozone pollution in the summer. In this study, a campaign of comprehensive field observations and VOC grid sampling was conducted in Xi’an from 20 June to 20 July 2019. We found that Xi'an has a strong local emission source of VOCs, and vehicle exhaust was the primary VOC source. In addition, alkenes, aromatics, and oxygenated VOCs played a dominant role in secondary transformations.
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