Articles | Volume 19, issue 23
https://doi.org/10.5194/acp-19-14677-2019
https://doi.org/10.5194/acp-19-14677-2019
Research article
 | 
05 Dec 2019
Research article |  | 05 Dec 2019

Regional sources of airborne ultrafine particle number and mass concentrations in California

Xin Yu, Melissa Venecek, Anikender Kumar, Jianlin Hu, Saffet Tanrikulu, Su-Tzai Soon, Cuong Tran, David Fairley, and Michael J. Kleeman

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Cited articles

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Bhangar, S., Mullen, N. A., Hering, S. V., Kreisberg, N. M., and Nazaroff, W. W.: Ultrafine particle concentrations and exposures in seven residences in northern California, Indoor Air, 21, 132–144, https://doi.org/10.1111/j.1600-0668.2010.00689.x, 2011. 
Boylan, J. W. and Russell, A. G.: PM and light extinction model performance metrics, goals, and criteria for three-dimensional air quality models, Atmos. Environ., 40, 4946–4959, https://doi.org/10.1016/j.atmosenv.2005.09.087, 2006. 
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Chen, J. J., Ying, Q., and Kleeman, M. J.: Source apportionment of wintertime secondary organic aerosol during the California regional PM10/PM2.5 air quality study, Atmos. Environ., 44, 1331–1340, 2010. 
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Short summary
Predictions and measurements of ultrafine particle number and mass concentrations were in overall good agreement at 14 sites across California in the years 2012, 2015, and 2016. On-road vehicles, food cooking, and aircraft were important sources of ultrafine particles as expected, but natural gas combustion was also a significant source at all locations across California. These results can be used to study the health effects of ultrafine particles.
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