Characterization of submicron organic particles in Beijing during summertime: comparison between SP-AMS and HR-AMS
<p>Black carbon (BC) particles in Beijing summer haze play an important role in the regional radiation balance and related environmental processes. Understanding the factors that lead to variability of the impacts of BC remains limited. Here, we present observations by a soot-particle aerosol...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2020-11-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/20/14091/2020/acp-20-14091-2020.pdf |
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| author | J. Wang J. Wang J. Ye D. Liu Y. Wu J. Zhao W. Xu C. Xie F. Shen J. Zhang P. E. Ohno Y. Qin X. Zhao S. T. Martin A. K. Y. Lee P. Fu D. J. Jacob Q. Zhang Y. Sun M. Chen X. Ge |
| author_facet | J. Wang J. Wang J. Ye D. Liu Y. Wu J. Zhao W. Xu C. Xie F. Shen J. Zhang P. E. Ohno Y. Qin X. Zhao S. T. Martin A. K. Y. Lee P. Fu D. J. Jacob Q. Zhang Y. Sun M. Chen X. Ge |
| author_sort | J. Wang |
| collection | DOAJ |
| description | <p>Black carbon (BC) particles in Beijing summer haze play an important role in the regional radiation balance and related environmental processes.
Understanding the factors that lead to variability of the impacts of BC remains limited. Here, we present observations by a soot-particle aerosol
mass spectrometer (SP-AMS) of BC-containing submicron particulate matter (<span class="inline-formula">BC−PM<sub>1</sub></span>) in Beijing, China, during summer 2017. These observations were
compared to concurrently measured total non-refractory submicron particulate matter (<span class="inline-formula">NR−PM<sub>1</sub></span>) by a high-resolution aerosol mass
spectrometer (HR-AMS). Distinct properties were observed between <span class="inline-formula">NR−PM<sub>1</sub></span> and <span class="inline-formula">BC−PM<sub>1</sub></span> relevant to organic aerosol (OA)
composition. Hydrocarbon-like OA (HOA) in <span class="inline-formula">BC−PM<sub>1</sub></span> was found to be up to 2-fold higher than that in <span class="inline-formula">NR−PM<sub>1</sub></span> in fresh vehicle
emissions, suggesting that a part of HOA in <span class="inline-formula">BC−PM<sub>1</sub></span> may be overestimated, likely due to the change of collection efficiency of
SP-AMS. Cooking-related OA was only identified in <span class="inline-formula">NR−PM<sub>1</sub></span>, whereas aged biomass burning OA (A-BBOA) was a unique factor only identified
in <span class="inline-formula">BC−PM<sub>1</sub></span>. The A-BBOA was linked to heavily coated BC, which may lead to enhancement of the light absorption ability of BC by a factor
of 2 via the “lensing effect”. More-oxidized oxygenated OA identified in BC-containing particles was found to be slightly different from that
observed by HR-AMS, mainly due to the influence of A-BBOA. Overall, these findings highlight that BC in urban Beijing is partially of agricultural
fire origin and that a unique biomass-burning-related OA associated with BC may be ubiquitous in aged <span class="inline-formula">BC−PM<sub>1</sub></span>, and this OA may play a role in
affecting air quality and climate that has not previously been fully considered.</p> |
| first_indexed | 2024-12-23T10:29:49Z |
| format | Article |
| id | doaj.art-0c1aa4e1a51f4489a03a01859d731fd7 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-23T10:29:49Z |
| publishDate | 2020-11-01 |
| publisher | Copernicus Publications |
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| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-0c1aa4e1a51f4489a03a01859d731fd72022-12-21T17:50:28ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242020-11-0120140911410210.5194/acp-20-14091-2020Characterization of submicron organic particles in Beijing during summertime: comparison between SP-AMS and HR-AMSJ. Wang0J. Wang1J. Ye2D. Liu3Y. Wu4J. Zhao5W. Xu6C. Xie7F. Shen8J. Zhang9P. E. Ohno10Y. Qin11X. Zhao12S. T. Martin13A. K. Y. Lee14P. Fu15D. J. Jacob16Q. Zhang17Y. Sun18M. Chen19X. Ge20Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, ChinaSchool of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USASchool of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USADepartment of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, ChinaDepartment of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaJiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, ChinaDepartment of Atmospheric Science, Colorado State University, Fort Collins, CO, USASchool of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USASchool of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USAState Environmental Protection Key Laboratory of Atmospheric Physical Modeling and Pollution Control, State Power Environmental Protection Research Institute, Nanjing, ChinaSchool of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USADepartment of Civil and Environmental Engineering, National University of Singapore, SingaporeInstitute of Surface-Earth System Science, Tianjin University, Tianjin, ChinaSchool of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USADepartment of Environmental Toxicology, University of California Davis, Davis, CA, USAState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaJiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, ChinaJiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, China<p>Black carbon (BC) particles in Beijing summer haze play an important role in the regional radiation balance and related environmental processes. Understanding the factors that lead to variability of the impacts of BC remains limited. Here, we present observations by a soot-particle aerosol mass spectrometer (SP-AMS) of BC-containing submicron particulate matter (<span class="inline-formula">BC−PM<sub>1</sub></span>) in Beijing, China, during summer 2017. These observations were compared to concurrently measured total non-refractory submicron particulate matter (<span class="inline-formula">NR−PM<sub>1</sub></span>) by a high-resolution aerosol mass spectrometer (HR-AMS). Distinct properties were observed between <span class="inline-formula">NR−PM<sub>1</sub></span> and <span class="inline-formula">BC−PM<sub>1</sub></span> relevant to organic aerosol (OA) composition. Hydrocarbon-like OA (HOA) in <span class="inline-formula">BC−PM<sub>1</sub></span> was found to be up to 2-fold higher than that in <span class="inline-formula">NR−PM<sub>1</sub></span> in fresh vehicle emissions, suggesting that a part of HOA in <span class="inline-formula">BC−PM<sub>1</sub></span> may be overestimated, likely due to the change of collection efficiency of SP-AMS. Cooking-related OA was only identified in <span class="inline-formula">NR−PM<sub>1</sub></span>, whereas aged biomass burning OA (A-BBOA) was a unique factor only identified in <span class="inline-formula">BC−PM<sub>1</sub></span>. The A-BBOA was linked to heavily coated BC, which may lead to enhancement of the light absorption ability of BC by a factor of 2 via the “lensing effect”. More-oxidized oxygenated OA identified in BC-containing particles was found to be slightly different from that observed by HR-AMS, mainly due to the influence of A-BBOA. Overall, these findings highlight that BC in urban Beijing is partially of agricultural fire origin and that a unique biomass-burning-related OA associated with BC may be ubiquitous in aged <span class="inline-formula">BC−PM<sub>1</sub></span>, and this OA may play a role in affecting air quality and climate that has not previously been fully considered.</p>https://acp.copernicus.org/articles/20/14091/2020/acp-20-14091-2020.pdf |
| spellingShingle | J. Wang J. Wang J. Ye D. Liu Y. Wu J. Zhao W. Xu C. Xie F. Shen J. Zhang P. E. Ohno Y. Qin X. Zhao S. T. Martin A. K. Y. Lee P. Fu D. J. Jacob Q. Zhang Y. Sun M. Chen X. Ge Characterization of submicron organic particles in Beijing during summertime: comparison between SP-AMS and HR-AMS Atmospheric Chemistry and Physics |
| title | Characterization of submicron organic particles in Beijing during summertime: comparison between SP-AMS and HR-AMS |
| title_full | Characterization of submicron organic particles in Beijing during summertime: comparison between SP-AMS and HR-AMS |
| title_fullStr | Characterization of submicron organic particles in Beijing during summertime: comparison between SP-AMS and HR-AMS |
| title_full_unstemmed | Characterization of submicron organic particles in Beijing during summertime: comparison between SP-AMS and HR-AMS |
| title_short | Characterization of submicron organic particles in Beijing during summertime: comparison between SP-AMS and HR-AMS |
| title_sort | characterization of submicron organic particles in beijing during summertime comparison between sp ams and hr ams |
| url | https://acp.copernicus.org/articles/20/14091/2020/acp-20-14091-2020.pdf |
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