Formation of secondary organic aerosol coating on black carbon particles near vehicular emissions

Lee, Alex K. Y.; Chen, Chia-Li; Liu, Jun; Price, Derek J.; Betha, Raghu; Russell, Lynn M.; Zhang, Xiaolu; Cappa, Christopher D.

doi:https://doi.org/10.5194/acp-17-15055-2017

Articles | Volume 17, issue 24

https://doi.org/10.5194/acp-17-15055-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-17-15055-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 24

Research article

|

20 Dec 2017

Research article |

| 20 Dec 2017

Formation of secondary organic aerosol coating on black carbon particles near vehicular emissions

Alex K. Y. Lee, Chia-Li Chen, Jun Liu, Derek J. Price, Raghu Betha, Lynn M. Russell, Xiaolu Zhang, and Christopher D. Cappa

Supplement

https://doi.org/10.5194/acp-17-15055-2017-supplement

Data sets

Aerosol Composition and Size Measurements at Fresno and Fontana. UC San Diego Library Digital Collections. L. M. Russell, R. Betha, K. J. Sanchez, J. Liu, D. J. Price, C.-L. Chen, and A. K. Y. Lee https://doi.org/10.6075/J0VX0DF9

Download

Article (9778 KB)
Full-text XML

Short summary

Understanding the mixing state of ambient black carbon (BC) and the chemical characteristics of its associated coatings is important to evaluate BC fate and environmental impacts. This study reports fresh secondary organic aerosol (SOA) formation near traffic emissions during daytime. Our observations suggest that BC was unlikely the major condensation sink of SOA, and a portion of SOA condensed on BC surface was chemically different from other SOA particles that were externally mixed with BC.