Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 14, issue 22
Articles | Volume 14, issue 22
https://doi.org/10.5194/acp-14-12085-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-14-12085-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 14, issue 22
Research article
 | 
18 Nov 2014
Research article |  | 18 Nov 2014

Spatial and temporal variability of sources of ambient fine particulate matter (PM2.5) in California

S. Hasheminassab, N. Daher, A. Saffari, D. Wang, B. D. Ostro, and C. Sioutas

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Short summary
Ambient PM2.5 in California originates from a large number of diverse sources. These sources show distinct spatial and temporal variability throughout the state. Secondary aerosols are generally the most abundant contributor to ambient PM2.5 mass, while vehicular emissions and biomass burning are the main primary sources of ambient PM2.5 in California.
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