The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)

<p>To investigate the sources and formation mechanism of oxidized organic nitrogen (OON), field measurements of OON were conducted using an iodide-adduct chemical ionization mass spectrometer equipped with a Filter Inlet for Gases and AEROsols (FIGAERO-CIMS) during fall of 2018 in the megacity...

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Main Authors:	Y. Cai, C. Ye, W. Chen, W. Hu, W. Song, Y. Peng, S. Huang, J. Qi, S. Wang, C. Wang, C. Wu, Z. Wang, B. Wang, X. Huang, L. He, S. Gligorovski, B. Yuan, M. Shao, X. Wang
Format:	Article
Language:	English
Published:	Copernicus Publications 2023-08-01
Series:	Atmospheric Chemistry and Physics
Online Access:	https://acp.copernicus.org/articles/23/8855/2023/acp-23-8855-2023.pdf

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author	Y. Cai Y. Cai Y. Cai Y. Cai Y. Cai C. Ye W. Chen W. Chen W. Chen W. Chen W. Chen W. Hu W. Hu W. Hu W. Hu W. Song W. Song W. Song W. Song Y. Peng Y. Peng S. Huang S. Huang J. Qi J. Qi S. Wang S. Wang C. Wang C. Wang C. Wu C. Wu Z. Wang Z. Wang B. Wang X. Huang L. He S. Gligorovski S. Gligorovski S. Gligorovski S. Gligorovski B. Yuan B. Yuan M. Shao M. Shao X. Wang X. Wang X. Wang X. Wang
author_facet	Y. Cai Y. Cai Y. Cai Y. Cai Y. Cai C. Ye W. Chen W. Chen W. Chen W. Chen W. Chen W. Hu W. Hu W. Hu W. Hu W. Song W. Song W. Song W. Song Y. Peng Y. Peng S. Huang S. Huang J. Qi J. Qi S. Wang S. Wang C. Wang C. Wang C. Wu C. Wu Z. Wang Z. Wang B. Wang X. Huang L. He S. Gligorovski S. Gligorovski S. Gligorovski S. Gligorovski B. Yuan B. Yuan M. Shao M. Shao X. Wang X. Wang X. Wang X. Wang
author_sort	Y. Cai
collection	DOAJ
description	<p>To investigate the sources and formation mechanism of oxidized organic nitrogen (OON), field measurements of OON were conducted using an iodide-adduct chemical ionization mass spectrometer equipped with a Filter Inlet for Gases and AEROsols (FIGAERO-CIMS) during fall of 2018 in the megacity of Guangzhou, China. Using levoglucosan as a tracer of biomass burning emissions, the results show that biomass burning (<span class="inline-formula">49±23</span> %) and secondary formation (<span class="inline-formula">51±23</span> %) accounted for comparable fractions to the total particle-phase OON (pOON) but <span class="inline-formula">24±25</span> % and <span class="inline-formula">76±25</span> % to the gas-phase OON (gOON), respectively, signifying the important contribution of biomass burning to pOON and secondary formation to gOON in this urban area. Calculations of production rates of gOON indicated that hydroxyl radical (42 %) and nitrate radical (NO<span class="inline-formula"><sub>3</sub></span>) (49 %) oxidation pathways potentially dominated the secondary formation of gOON. A high concentration of NO<span class="inline-formula"><sub>3</sub></span> radicals during the afternoon was observed, demonstrating that the daytime NO<span class="inline-formula"><sub>3</sub></span> oxidation might be more important than the previous recognition. Monoterpenes, found to be major precursors of secondary gOON, were mainly from anthropogenic emissions in this urban area. The ratio of secondary pOON to O<span class="inline-formula"><sub><i>x</i></sub></span> ([O<span class="inline-formula"><sub><i>x</i></sub></span>] <span class="inline-formula">=</span> [O<span class="inline-formula"><sub>3</sub></span>] <span class="inline-formula">+</span> [NO<span class="inline-formula"><sub>2</sub></span>]) increased as a function of relative humidity and aerosol surface area, indicating that heterogeneous reaction might be<span id="page8856"/> an important formation pathway for secondary pOON. Finally, the highly oxidized gOON and pOON with 6 to 11 oxygen atoms were observed, highlighting the complex secondary reaction processes of OON in the ambient air. Overall, our results improve the understanding of the sources and dynamic variation of OON in the urban atmosphere.</p>
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id	doaj.art-10acd5eac0124fee8699440b333258a7
institution	Directory Open Access Journal
issn	1680-7316 1680-7324
language	English
last_indexed	2024-03-12T16:13:07Z
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spelling	doaj.art-10acd5eac0124fee8699440b333258a72023-08-09T10:05:57ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242023-08-01238855887710.5194/acp-23-8855-2023The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)Y. Cai0Y. Cai1Y. Cai2Y. Cai3Y. Cai4C. Ye5W. Chen6W. Chen7W. Chen8W. Chen9W. Chen10W. Hu11W. Hu12W. Hu13W. Hu14W. Song15W. Song16W. Song17W. Song18Y. Peng19Y. Peng20S. Huang21S. Huang22J. Qi23J. Qi24S. Wang25S. Wang26C. Wang27C. Wang28C. Wu29C. Wu30Z. Wang31Z. Wang32B. Wang33X. Huang34L. He35S. Gligorovski36S. Gligorovski37S. Gligorovski38S. Gligorovski39B. Yuan40B. Yuan41M. Shao42M. Shao43X. Wang44X. Wang45X. Wang46X. Wang47State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou 510640, ChinaGuangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Chinese Academy of Science, Guangzhou 510640, ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, ChinaJoint Lab for Atmospheric Photochemistry, Guangdong Provincial Academy of Environmental Science, Guangzhou 510045, ChinaState Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou 510640, ChinaGuangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Chinese Academy of Science, Guangzhou 510640, ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou 510640, ChinaGuangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Chinese Academy of Science, Guangzhou 510640, ChinaState Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou 510640, ChinaGuangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Chinese Academy of Science, Guangzhou 510640, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaSchool of Environmental Science and Engineering, Qilu University of Technology, Jinan 250353, ChinaKey Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, ChinaKey Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, ChinaState Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou 510640, ChinaGuangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Chinese Academy of Science, Guangzhou 510640, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaInstitute for Environmental and Climate Research, Jinan University, Guangzhou 511443, ChinaGuangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, ChinaState Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou 510640, ChinaGuangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, ChinaGuangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Chinese Academy of Science, Guangzhou 510640, China<p>To investigate the sources and formation mechanism of oxidized organic nitrogen (OON), field measurements of OON were conducted using an iodide-adduct chemical ionization mass spectrometer equipped with a Filter Inlet for Gases and AEROsols (FIGAERO-CIMS) during fall of 2018 in the megacity of Guangzhou, China. Using levoglucosan as a tracer of biomass burning emissions, the results show that biomass burning (<span class="inline-formula">49±23</span> %) and secondary formation (<span class="inline-formula">51±23</span> %) accounted for comparable fractions to the total particle-phase OON (pOON) but <span class="inline-formula">24±25</span> % and <span class="inline-formula">76±25</span> % to the gas-phase OON (gOON), respectively, signifying the important contribution of biomass burning to pOON and secondary formation to gOON in this urban area. Calculations of production rates of gOON indicated that hydroxyl radical (42 %) and nitrate radical (NO<span class="inline-formula"><sub>3</sub></span>) (49 %) oxidation pathways potentially dominated the secondary formation of gOON. A high concentration of NO<span class="inline-formula"><sub>3</sub></span> radicals during the afternoon was observed, demonstrating that the daytime NO<span class="inline-formula"><sub>3</sub></span> oxidation might be more important than the previous recognition. Monoterpenes, found to be major precursors of secondary gOON, were mainly from anthropogenic emissions in this urban area. The ratio of secondary pOON to O<span class="inline-formula"><sub><i>x</i></sub></span> ([O<span class="inline-formula"><sub><i>x</i></sub></span>] <span class="inline-formula">=</span> [O<span class="inline-formula"><sub>3</sub></span>] <span class="inline-formula">+</span> [NO<span class="inline-formula"><sub>2</sub></span>]) increased as a function of relative humidity and aerosol surface area, indicating that heterogeneous reaction might be<span id="page8856"/> an important formation pathway for secondary pOON. Finally, the highly oxidized gOON and pOON with 6 to 11 oxygen atoms were observed, highlighting the complex secondary reaction processes of OON in the ambient air. Overall, our results improve the understanding of the sources and dynamic variation of OON in the urban atmosphere.</p>https://acp.copernicus.org/articles/23/8855/2023/acp-23-8855-2023.pdf
spellingShingle	Y. Cai Y. Cai Y. Cai Y. Cai Y. Cai C. Ye W. Chen W. Chen W. Chen W. Chen W. Chen W. Hu W. Hu W. Hu W. Hu W. Song W. Song W. Song W. Song Y. Peng Y. Peng S. Huang S. Huang J. Qi J. Qi S. Wang S. Wang C. Wang C. Wang C. Wu C. Wu Z. Wang Z. Wang B. Wang X. Huang L. He S. Gligorovski S. Gligorovski S. Gligorovski S. Gligorovski B. Yuan B. Yuan M. Shao M. Shao X. Wang X. Wang X. Wang X. Wang The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS) Atmospheric Chemistry and Physics
title	The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)
title_full	The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)
title_fullStr	The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)
title_full_unstemmed	The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)
title_short	The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)
title_sort	important contribution of secondary formation and biomass burning to oxidized organic nitrogen oon in a polluted urban area insights from in situ measurements of a chemical ionization mass spectrometer cims
url	https://acp.copernicus.org/articles/23/8855/2023/acp-23-8855-2023.pdf
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importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT cwang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT cwu importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT cwu importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT zwang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT zwang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT bwang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT xhuang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT lhe importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT sgligorovski importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT sgligorovski importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT sgligorovski importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT sgligorovski importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT byuan importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT byuan importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT mshao importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT mshao importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT xwang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT xwang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT xwang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims AT xwang importantcontributionofsecondaryformationandbiomassburningtooxidizedorganicnitrogenooninapollutedurbanareainsightsfrominsitumeasurementsofachemicalionizationmassspectrometercims

The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)

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