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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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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