Contributions of biomass-burning, urban, and biogenic emissions to the concentrations and light-absorbing properties of particulate matter in central Amazonia during the dry season

de Sá, Suzane S.; Rizzo, Luciana V.; Palm, Brett B.; Campuzano-Jost, Pedro; Day, Douglas A.; Yee, Lindsay D.; Wernis, Rebecca; Isaacman-VanWertz, Gabriel; Brito, Joel; Carbone, Samara; Liu, Yingjun J.; Sedlacek, Arthur; Springston, Stephen; Goldstein, Allen H.; Barbosa, Henrique M. J.; Alexander, M. Lizabeth; Artaxo, Paulo; Jimenez, Jose L.; Martin, Scot T.

doi:https://doi.org/10.5194/acp-19-7973-2019

Articles | Volume 19, issue 12

https://doi.org/10.5194/acp-19-7973-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Observations and Modeling of the Green Ocean Amazon (GoAmazon2014/5)...

https://doi.org/10.5194/acp-19-7973-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 12

Research article

|

18 Jun 2019

Research article |

| 18 Jun 2019

Contributions of biomass-burning, urban, and biogenic emissions to the concentrations and light-absorbing properties of particulate matter in central Amazonia during the dry season

Suzane S. de Sá, Luciana V. Rizzo, Brett B. Palm, Pedro Campuzano-Jost, Douglas A. Day, Lindsay D. Yee, Rebecca Wernis, Gabriel Isaacman-VanWertz, Joel Brito, Samara Carbone, Yingjun J. Liu, Arthur Sedlacek, Stephen Springston, Allen H. Goldstein, Henrique M. J. Barbosa, M. Lizabeth Alexander, Paulo Artaxo, Jose L. Jimenez, and Scot T. Martin

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Interactive discussion

Status: closed

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

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SC1: 'comments to acp-2018-1309 by Marco Pandolfi', Marco Pandolfi, 15 Jan 2019
RC1: 'Observations and analysis of submicron PM1 concentration, composition, and optical properties in central Amazonia during the dry season.', Anonymous Referee #1, 05 Feb 2019
RC2: 'Review of de Sá et al.', Anonymous Referee #2, 19 Feb 2019
AC1: 'Response to RCs and SC', Suzane de Sá, 14 Apr 2019

Peer-review completion

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

AR by Suzane de Sá on behalf of the Authors (21 Apr 2019) Author's response Manuscript

ED: Publish subject to minor revisions (review by editor) (26 Apr 2019) by Thomas Karl

AR by Suzane de Sá on behalf of the Authors (05 May 2019) Author's response Manuscript

ED: Publish as is (06 May 2019) by Thomas Karl

AR by Suzane de Sá on behalf of the Authors (12 May 2019) Author's response Manuscript

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Short summary

This study investigates the impacts of urban and fire emissions on the concentration, composition, and optical properties of submicron particulate matter (PM₁) in central Amazonia during the dry season. Biomass-burning and urban emissions appeared to contribute at least 80 % of brown carbon absorption while accounting for 30 % to 40 % of the organic PM₁ mass concentration. Only a fraction of the 9-fold increase in mass concentration relative to the wet season was due to biomass burning.