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

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...

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Autores principales: Lee, Xinqing, Huang, Daikuan, Liu, Qi, Liu, Xueyan, Zhou, Hui, Wang, Qian, Ma, Yuena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8009910/
https://www.ncbi.nlm.nih.gov/pubmed/33785820
http://dx.doi.org/10.1038/s41598-021-86542-2
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author Lee, Xinqing
Huang, Daikuan
Liu, Qi
Liu, Xueyan
Zhou, Hui
Wang, Qian
Ma, Yuena
author_facet Lee, Xinqing
Huang, Daikuan
Liu, Qi
Liu, Xueyan
Zhou, Hui
Wang, Qian
Ma, Yuena
author_sort Lee, Xinqing
collection PubMed
description 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.
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spelling pubmed-80099102021-04-01 Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid Lee, Xinqing Huang, Daikuan Liu, Qi Liu, Xueyan Zhou, Hui Wang, Qian Ma, Yuena Sci Rep Article 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. Nature Publishing Group UK 2021-03-30 /pmc/articles/PMC8009910/ /pubmed/33785820 http://dx.doi.org/10.1038/s41598-021-86542-2 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Lee, Xinqing
Huang, Daikuan
Liu, Qi
Liu, Xueyan
Zhou, Hui
Wang, Qian
Ma, Yuena
Underrated primary biogenic origin and lifetime of atmospheric formic and acetic acid
title 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_short 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
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8009910/
https://www.ncbi.nlm.nih.gov/pubmed/33785820
http://dx.doi.org/10.1038/s41598-021-86542-2
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