Measurement report: dual-carbon isotopic characterization of carbonaceous aerosol reveals different primary and secondary sources in Beijing and Xi'an during severe haze events

Ni, Haiyan; Huang, Ru-Jin; Cosijn, Max M.; Yang, Lu; Guo, Jie; Cao, Junji; Dusek, Ulrike

doi:https://doi.org/10.5194/acp-20-16041-2020

Articles | Volume 20, issue 24

https://doi.org/10.5194/acp-20-16041-2020

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

https://doi.org/10.5194/acp-20-16041-2020

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

Articles | Volume 20, issue 24

Measurement report

|

22 Dec 2020

Measurement report |

| 22 Dec 2020

Measurement report: dual-carbon isotopic characterization of carbonaceous aerosol reveals different primary and secondary sources in Beijing and Xi'an during severe haze events

Haiyan Ni, Ru-Jin Huang, Max M. Cosijn, Lu Yang, Jie Guo, Junji Cao, and Ulrike Dusek

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Final revised paper (published on 22 Dec 2020)
Supplement to the final revised paper
Preprint (discussion started on 22 Jun 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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RC1: 'Review of the manuscript', Anonymous Referee #2, 20 Jul 2020
RC2: 'Review of Ni et al.', Anonymous Referee #1, 03 Sep 2020
AC1: 'Response to reviewers', Haiyan Ni, 02 Oct 2020

Peer-review completion

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

AR by Haiyan Ni on behalf of the Authors (03 Oct 2020) Author's response Manuscript

ED: Publish subject to minor revisions (review by editor) (21 Oct 2020) by Willy Maenhaut

The authors have reasonably well addressed the comments of the two anonymous referees and they have modified their manuscript accordingly. However, several alterations and corrections are needed for the Main text and Supplement before the manuscript can be published in ACP.

For the Main text:
Line 2: Replace "reveal" by "reveals".
Line 49: Replace "quantification" by "quantifying".
Line 52: Replace "provide" by "provides".
Line 93: Replace "IMPROVE_A" by "The IMPROVE_A".
Line 94: Replace "measurements" by "measurement".
Line 116: Replace "is smaller" by "are smaller".
Line 158: Replace "equal to" by "are equal to".
Line 163: Abbreviations and acronyms, here "PDFs", should be defined (written full-out) when first used. Since "PDFs" seems to stand for "probability density functions" and is not used elsewhere in the Main text, it should simply be replaced here by "probability density functions".
Line 177: Replace "is resulted from" by "results from the".
Line 210: Replace "vary spatially" by "varies spatially".
Line 230: Replace "sources," by "sources;".
Line 254: Replace "e.g.," by "i.e.,".
Line 265: Replace ", in contrast to" by "; in contrast".
Line 269: Replace ", mainly" by "; this mainly".
Line 318: Abbreviations and acronyms, here "SOA", should be defined (written full-out) when first used. Since "SOA" stands for "secondary organic aerosol" and is not used elsewhere in the Main text, it should simply be replaced here by "secondary organic aerosol".
Line 327: Replace "governs the" by "govern the".
Line 339: Replace "dominate fossil" by "dominating fossil".
Line 496: Replace "201613401" by "114, E1054-E1061, https://10.1073/pnas.16130114".
Lines 555-557: Several of the abbreviations in the abscissa of the Figure are only defined in Table S1. Therefore, the Figure caption should be extended and reference should be made in it to Table S1,

For the Supplement:
Page S1, line 3: Replace "reveal" by "reveals".
Page S2, line 2: Replace "associate" by "associated".
Page S2, line 6: Replace "agrees each" by "agree with each".
Page S2, line 5 from bottom: Abbreviations and acronyms, here "PDFs", should be defined (written full-out) when first used. "PDFs" is only defined on page S3.
Page S15, line 3: The abbreviated journal name should be in regular font instead of in italic.

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AR by Haiyan Ni on behalf of the Authors (22 Oct 2020) Author's response Manuscript

ED: Publish as is (08 Nov 2020) by Willy Maenhaut

AR by Haiyan Ni on behalf of the Authors (10 Nov 2020) Manuscript

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Short summary

We investigated sources of carbonaceous aerosols in Beijing and Xi'an during severe winter haze. Elemental carbon (EC) was dominated by vehicle emissions in Xi’an and coal burning in Beijing. Organic carbon (OC) increment during haze days was driven by the increase in primary and secondary OC (SOC). SOC was more from fossil sources in Beijing than Xi’an, especially during haze days. In Xi’an, no strong day–night differences in EC or OC sources suggest a large accumulation of particles.