Articles | Volume 18, issue 22
Atmos. Chem. Phys., 18, 16325–16344, 2018
https://doi.org/10.5194/acp-18-16325-2018
Atmos. Chem. Phys., 18, 16325–16344, 2018
https://doi.org/10.5194/acp-18-16325-2018

Research article 16 Nov 2018

Research article | 16 Nov 2018

High-spatial-resolution mapping and source apportionment of aerosol composition in Oakland, California, using mobile aerosol mass spectrometry

Rishabh U. Shah et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Rishabh Urvesh Shah on behalf of the Authors (02 Oct 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (18 Oct 2018) by Rupert Holzinger
RR by Anonymous Referee #2 (25 Oct 2018)
ED: Publish as is (06 Nov 2018) by Rupert Holzinger
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Short summary
We measured spatial differences in airborne particulate matter (PM) in Oakland, CA, with repeated mobile measurements on all city streets. In addition to primary, we also find higher secondary organic PM downtown, which suggests stronger photochemical PM production in areas of high emissions and poor air ventilation (i.e., urban street canyons). This finding is original because while other modeling studies have predicted higher photochemistry in street canyons, we confirm this observationally.
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