Enhanced formation of nitrogenous organic aerosols and brown carbon after aging in the planetary boundary layer

Enhanced formation of nitrogenous organic aerosols and brown carbon after aging in the planetary boundary layer | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Enhanced formation of nitrogenous organic aerosols and brown carbon after aging in the planetary boundary layer Dantong Liu, Yangzhou Wu, Quan Liu, Ping Tian, Weiqi Xu, Junfeng Wang, and 8 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4124397/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 9 You are reading this latest preprint version Abstract Particulate organic nitrates (pON) significantly contribute to the mass of organic aerosol and influence the NOX cycle in the atmosphere, but their evolution and lifetime remain uncertain. This study performed simultaneous measurements on the anthropogenically affected surface site and the mountain site on top of the polluted planetary boundary layer (PBL). After aging in the PBL, organic nitrate was converted from primary sources (decreased from 8.7 % to 4.3 %) to secondary sources (increased from 6.3 % to 36.1 %), spanning from the surface to the mountain. The evaporation of more volatile inorganic nitrate and the production of secondary organic nitrate during aging in the PBL contributed to the enhanced pON fraction over the top of PBL. The contribution of light absorption by brown carbon increased by 43 % at the top of PBL compared to the surface, consistent with the higher fraction of nitrogenous organic aerosols over the mountain. The results provide field evidence that the nitrogenous OA may be preserved by adding into secondary OA and significantly contribute to the enhanced importance of brown carbon after aging the vertical transport in the PBL. Biological sciences/Ecology Full Text Additional Declarations (Not answered) Supplementary Files WYZONSI1.pdf Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: revise 28 May, 2024 Review # 2 received at journal 26 May, 2024 Review # 1 received at journal 30 Apr, 2024 Reviewer # 2 agreed at journal 29 Apr, 2024 Reviewer # 1 agreed at journal 14 Apr, 2024 Reviewers invited by journal 11 Apr, 2024 Editor assigned by journal 20 Mar, 2024 Submission checks completed at journal 20 Mar, 2024 First submitted to journal 18 Mar, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4124397","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":290119398,"identity":"2f95b4a2-5234-4e34-ba37-4a50edfd6975","order_by":0,"name":"Dantong 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