Temperature effects on optical properties and chemical  composition of secondary organic aerosol derived from <i>n</i>-dodecane

Li, Junling; Wang, Weigang; Li, Kun; Zhang, Wenyu; Peng, Chao; Zhou, Li; Shi, Bo; Chen, Yan; Liu, Mingyuan; Li, Hong; Ge, Maofa

doi:https://doi.org/10.5194/acp-20-8123-2020

Articles | Volume 20, issue 13

https://doi.org/10.5194/acp-20-8123-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-8123-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 13

Research article

|

13 Jul 2020

Research article |

| 13 Jul 2020

Temperature effects on optical properties and chemical composition of secondary organic aerosol derived from n-dodecane

Junling Li, Weigang Wang, Kun Li, Wenyu Zhang, Chao Peng, Li Zhou, Bo Shi, Yan Chen, Mingyuan Liu, Hong Li, and Maofa Ge

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Final revised paper (published on 13 Jul 2020)
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Preprint (discussion started on 13 Feb 2020)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Review of Li et al.', Anonymous Referee #1, 08 Mar 2020
- AC1: 'Reply to Referee #1', Weigang Wang, 07 May 2020
RC2: 'review comments on acp-2019-1218', Anonymous Referee #2, 14 Mar 2020
- AC2: 'Reply to Referee #2', Weigang Wang, 07 May 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Weigang Wang on behalf of the Authors (07 May 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (14 May 2020) by Alex Lee

RR by Anonymous Referee #2 (29 May 2020)

RR by Anonymous Referee #1 (29 May 2020)

ED: Publish subject to minor revisions (review by editor) (06 Jun 2020) by Alex Lee

AR by Weigang Wang on behalf of the Authors (14 Jun 2020) Author's response Manuscript

ED: Publish as is (19 Jun 2020) by Alex Lee

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Short summary

Long-chain alkanes (a large fraction of diesel fuel and its exhaust) are important potential contributors of SOA. Through the analysis of the components of formed SOA, we found that low-temperature conditions promote the oligomerization of n-dodecane, and the degree of oligomerization can reach tetramerization. The presence of the oligomers enhances the light extinction of the particles. UV-scattering particles in the boundary layer can accelerate photochemical reactions and haze production.