Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid

Abstract Formic and acetic acids are ubiquitous in the troposphere, playing an important role in the atmospheric chemistry. Recent model studies ended up with substantial low bias on their tropospheric budgets presumably due to a large missing biogenic source derived most likely from photochemical o...

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Autores principales:	Xinqing Lee, Daikuan Huang, Qi Liu, Xueyan Liu, Hui Zhou, Qian Wang, Yuena Ma
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/12daf7b3cc474112bd2bafc7078ef5de
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spelling	oai:doaj.org-article:12daf7b3cc474112bd2bafc7078ef5de2021-12-02T13:26:25ZUnderrated primary biogenic origin and lifetime of atmospheric formic and acetic acid10.1038/s41598-021-86542-22045-2322https://doaj.org/article/12daf7b3cc474112bd2bafc7078ef5de2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86542-2https://doaj.org/toc/2045-2322Abstract Formic and acetic acids are ubiquitous in the troposphere, playing an important role in the atmospheric chemistry. Recent model studies ended up with substantial low bias on their tropospheric budgets presumably due to a large missing biogenic source derived most likely from photochemical oxidation of long-lived volatile organic compound(s), i.e., a secondary biogenic emission. Here, by studying the stable carbon isotope composition of formic and acetic acid in couple in the troposphere and relevant sources, we find the gap relates to primary biogenic emission and atmospheric lifetime of the acids. We show the primary biogenic emission is only second to the secondary biogenic emission as a strong source. Marine emission is the least one yet present in all the tropospheric environments except some local air. Long-distance transport of this origin indicates the lifetime over 5 days for both acids. Our results indicate that recent simulations underrated both primary biogenic emission and the lifetime. These underestimations would inevitably bias low the modeled results, especially in the low and free troposphere where primary biogenic emission and lifetime has the most pronounced influence, respectively.Xinqing LeeDaikuan HuangQi LiuXueyan LiuHui ZhouQian WangYuena MaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xinqing Lee Daikuan Huang Qi Liu Xueyan Liu Hui Zhou Qian Wang Yuena Ma Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid
description	Abstract Formic and acetic acids are ubiquitous in the troposphere, playing an important role in the atmospheric chemistry. Recent model studies ended up with substantial low bias on their tropospheric budgets presumably due to a large missing biogenic source derived most likely from photochemical oxidation of long-lived volatile organic compound(s), i.e., a secondary biogenic emission. Here, by studying the stable carbon isotope composition of formic and acetic acid in couple in the troposphere and relevant sources, we find the gap relates to primary biogenic emission and atmospheric lifetime of the acids. We show the primary biogenic emission is only second to the secondary biogenic emission as a strong source. Marine emission is the least one yet present in all the tropospheric environments except some local air. Long-distance transport of this origin indicates the lifetime over 5 days for both acids. Our results indicate that recent simulations underrated both primary biogenic emission and the lifetime. These underestimations would inevitably bias low the modeled results, especially in the low and free troposphere where primary biogenic emission and lifetime has the most pronounced influence, respectively.
format	article
author	Xinqing Lee Daikuan Huang Qi Liu Xueyan Liu Hui Zhou Qian Wang Yuena Ma
author_facet	Xinqing Lee Daikuan Huang Qi Liu Xueyan Liu Hui Zhou Qian Wang Yuena Ma
author_sort	Xinqing Lee
title	Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid
title_short	Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid
title_full	Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid
title_fullStr	Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid
title_full_unstemmed	Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid
title_sort	underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/12daf7b3cc474112bd2bafc7078ef5de
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_version_	1718393015152672768

Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid

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