Articles | Volume 23, issue 4
https://doi.org/10.5194/acp-23-2747-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-2747-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Feb 2023
Research article |
| 28 Feb 2023
| 28 Feb 2023
Intensive aerosol properties of boreal and regional biomass burning aerosol at Mt. Bachelor Observatory: larger and black carbon (BC)-dominant particles transported from Siberian wildfires
Nathaniel W. May
School of Science, Technology, Engineering, and Mathematics,
University of Washington, Bothell, WA 98011, USA
Noah Bernays
School of Science, Technology, Engineering, and Mathematics,
University of Washington, Bothell, WA 98011, USA
Ryan Farley
Department of Environmental Toxicology, University of California,
Davis, CA 95616, USA
Department of Environmental Toxicology, University of California,
Davis, CA 95616, USA
School of Science, Technology, Engineering, and Mathematics,
University of Washington, Bothell, WA 98011, USA
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Junfeng Wang, Jianhuai Ye, Dantong Liu, Yangzhou Wu, Jian Zhao, Weiqi Xu, Conghui Xie, Fuzhen Shen, Jie Zhang, Paul E. Ohno, Yiming Qin, Xiuyong Zhao, Scot T. Martin, Alex K. Y. Lee, Pingqing Fu, Daniel J. Jacob, Qi Zhang, Yele Sun, Mindong Chen, and Xinlei Ge
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We compared the organics in total submicron matter and those coated on BC cores during summertime in Beijing and found large differences between them. Traffic-related OA was associated significantly with BC, while cooking-related OA did not coat BC. In addition, a factor likely originated from primary biomass burning OA was only identified in BC-containing particles. Such a unique BBOA requires further field and laboratory studies to verify its presence and elucidate its properties and impacts.
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Hwajin Kim, Qi Zhang, and Yele Sun
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Short summary
In summer 2019 at Mt. Bachelor Observatory, we observed smoke from wildfires with transport times ranging from less than a day up to 2 weeks. Aerosol absorption of multi-day transported smoke was dominated by black carbon, while smoke with shorter transport times had greater brown carbon absorption. Notably, Siberian smoke exhibited aerosol scattering and physical properties indicative of contributions from larger particles than typically observed in smoke.
In summer 2019 at Mt. Bachelor Observatory, we observed smoke from wildfires with transport...
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