Source apportionment of ambient particle number concentrations in central  Los Angeles using positive matrix factorization (PMF)

Sowlat, Mohammad Hossein; Hasheminassab, Sina; Sioutas, Constantinos

doi:https://doi.org/10.5194/acp-16-4849-2016

Articles | Volume 16, issue 8

https://doi.org/10.5194/acp-16-4849-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-4849-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 8

Research article

|

20 Apr 2016

Research article |

| 20 Apr 2016

Source apportionment of ambient particle number concentrations in central Los Angeles using positive matrix factorization (PMF)

Mohammad Hossein Sowlat, Sina Hasheminassab, and Constantinos Sioutas

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Final revised paper (published on 20 Apr 2016)
Supplement to the final revised paper
Preprint (discussion started on 03 Feb 2016)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Source apportionment of ambient particle number concentrations in central Los Angeles using positive matrix factorization (PMF)', Anonymous Referee #1, 01 Mar 2016
- AC1: 'Response to Reviewer #1 comments', Mohammad Hossein Sowlat, 11 Mar 2016
RC2: 'Comments to "Source apportionment of ambient particle number concentrations in central Los Angeles using positive matrix factorization (PMF)"', Anonymous Referee #2, 02 Mar 2016
- AC2: 'Response to Reviewer #2 comments', Mohammad Hossein Sowlat, 11 Mar 2016

Peer-review completion

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

AR by Mohammad Hossein Sowlat on behalf of the Authors (31 Mar 2016) Author's response Manuscript

ED: Publish as is (01 Apr 2016) by Xavier Querol

AR by Mohammad Hossein Sowlat on behalf of the Authors (03 Apr 2016)

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Short summary

In this study, the positive matrix factorization (PMF) receptor model was used to identify and quantify major sources contributing to particulate matter (PM) number concentrations, using number size distributions measured in central Los Angeles, CA. The sources of particle number concentrations were identified as traffic, nucleation, urban background aerosol, secondary aerosol, and soil/road dust, with traffic and nucleation having the largest contributions to the total number concentrations.