Articles | Volume 19, issue 1
https://doi.org/10.5194/amt-19-307-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-307-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Jan 2026
Research article |
| 15 Jan 2026
| 15 Jan 2026
Findings of the African Combustion Aerosol Collaborative Intercomparison Analysis (ACACIA) Pilot Project to Understand the Optical Properties of Biomass Burning Smoke
Marc N. Fiddler
Department of Chemistry, North Carolina A&T State University, Greensboro, NC, 27411, USA
Vaios Moschos
Department of Physics, North Carolina A&T State University, Greensboro, NC, 27411, USA
Megan M. McRee
Department of Applied Sciences and Technology, North Carolina A&T State University, Greensboro, NC, 27411, USA
Abu Sayeed Md Shawon
Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
Kyle Gorkowski
Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
James E. Lee
Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
Nevil A. Franco
Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
Katherine B. Benedict
Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
Samir Kattel
Department of Applied Sciences and Technology, North Carolina A&T State University, Greensboro, NC, 27411, USA
Chelia Thompson
Department of Applied Sciences and Technology, North Carolina A&T State University, Greensboro, NC, 27411, USA
Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA
Department of Physics, North Carolina A&T State University, Greensboro, NC, 27411, USA
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Vaios Moschos, Martin Gysel-Beer, Robin L. Modini, Joel C. Corbin, Dario Massabò, Camilla Costa, Silvia G. Danelli, Athanasia Vlachou, Kaspar R. Daellenbach, Sönke Szidat, Paolo Prati, André S. H. Prévôt, Urs Baltensperger, and Imad El Haddad
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Siqi Hou, Di Liu, Jingsha Xu, Tuan V. Vu, Xuefang Wu, Deepchandra Srivastava, Pingqing Fu, Linjie Li, Yele Sun, Athanasia Vlachou, Vaios Moschos, Gary Salazar, Sönke Szidat, André S. H. Prévôt, Roy M. Harrison, and Zongbo Shi
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This study provides a newly developed method which combines radiocarbon (14C) with organic tracers to enable source apportionment of primary and secondary fossil vs. non-fossil sources of carbonaceous aerosols at an urban and a rural site of Beijing. The source apportionment results were compared with those by chemical mass balance and AMS/ACSM-PMF methods. Correlations of WINSOC and WSOC with different sources of OC were also performed to elucidate the formation mechanisms of SOC.
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Short summary
The study used a photoacoustic spectrometer as a reference instrument to determine the multiple-scattering correction factor Cλ for an AE33 aethalometer at three wavelengths, which we believe is critical for aerosol absorption measurements using aethalometer. This is an important parametrization of Cλ specifically geared towards BB aerosol from African fuels under different aging states, and is of particular importance for future field work in that continent which is at present least studied.
The study used a photoacoustic spectrometer as a reference instrument to determine the...
