Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons

Yee, Lindsay D.; Isaacman-VanWertz, Gabriel A.; Wernis, Rebecca A.; Meng, Meng; Rivera, Ventura; Kreisberg, Nathan M.; Hering, Susanne V.; Bering, Mads S.; Glasius, Marianne; Upshur, Mary Alice; Gray Bé, Ariana; Thomson, Regan J.; Geiger, Franz M.; Offenberg, John H.; Lewandowski, Michael; Kourtchev, Ivan N.; Kalberer, Markus; Sá, Suzane S. de; Martin, Scot T.; Alexander, Michael Lizabeth; Palm, Brett B.; Hu, Weiwei; Campuzano-Jost, Pedro; Day, Douglas A.; Ji?enez, José Luis; Liu, Yingjun; McKinney, Karena A.; Artaxo, Paulo; Viegas, Juarez; Manzi, Antônio Ocimar; Oliveira, Maria B.L.; Souza, Rodrigo Augusto Ferreira de; Machado, Luiz Augusto Toledo; Longo, Karla Maria; Goldstein, Allen H.

Artigo

Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons

Biogenic volatile organic compounds (BVOCs) from the Amazon forest region represent the largest source of organic carbon emissions to the atmosphere globally. These BVOC emissions dominantly consist of volatile and intermediate-volatility terpenoid compounds that undergo chemical transformations...

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Autor principal:	Yee, Lindsay D.
Outros Autores:	Isaacman-VanWertz, Gabriel A., Wernis, Rebecca A., Meng, Meng, Rivera, Ventura, Kreisberg, Nathan M., Hering, Susanne V., Bering, Mads S., Glasius, Marianne, Upshur, Mary Alice, Gray Bé, Ariana, Thomson, Regan J., Geiger, Franz M., Offenberg, John H., Lewandowski, Michael, Kourtchev, Ivan N., Kalberer, Markus, Sá, Suzane S. de, Martin, Scot T., Alexander, Michael Lizabeth, Palm, Brett B., Hu, Weiwei, Campuzano-Jost, Pedro, Day, Douglas A., Ji?enez, José Luis, Liu, Yingjun, McKinney, Karena A., Artaxo, Paulo, Viegas, Juarez, Manzi, Antônio Ocimar, Oliveira, Maria B.L., Souza, Rodrigo Augusto Ferreira de, Machado, Luiz Augusto Toledo, Longo, Karla Maria, Goldstein, Allen H.
Grau:	Artigo
Idioma:	English
Publicado em:	Atmospheric Chemistry and Physics 2020
Assuntos:	Aerosol Dry Season Oxidation Source Apportionment Volatile Organic Compound Wet Season Amazonas Brasil Manaus
Acesso em linha:	https://repositorio.inpa.gov.br/handle/1/15616

id	oai:repositorio:1-15616
recordtype	dspace
spelling	oai:repositorio:1-15616 Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons Yee, Lindsay D. Isaacman-VanWertz, Gabriel A. Wernis, Rebecca A. Meng, Meng Rivera, Ventura Kreisberg, Nathan M. Hering, Susanne V. Bering, Mads S. Glasius, Marianne Upshur, Mary Alice Gray Bé, Ariana Thomson, Regan J. Geiger, Franz M. Offenberg, John H. Lewandowski, Michael Kourtchev, Ivan N. Kalberer, Markus Sá, Suzane S. de Martin, Scot T. Alexander, Michael Lizabeth Palm, Brett B. Hu, Weiwei Campuzano-Jost, Pedro Day, Douglas A. Ji?enez, José Luis Liu, Yingjun McKinney, Karena A. Artaxo, Paulo Viegas, Juarez Manzi, Antônio Ocimar Oliveira, Maria B.L. Souza, Rodrigo Augusto Ferreira de Machado, Luiz Augusto Toledo Longo, Karla Maria Goldstein, Allen H. Aerosol Dry Season Oxidation Source Apportionment Volatile Organic Compound Wet Season Amazonas Brasil Manaus <p>Biogenic volatile organic compounds (BVOCs) from the Amazon forest region represent the largest source of organic carbon emissions to the atmosphere globally. These BVOC emissions dominantly consist of volatile and intermediate-volatility terpenoid compounds that undergo chemical transformations in the atmosphere to form oxygenated condensable gases and secondary organic aerosol (SOA). We collected quartz filter samples with 12 h time resolution and performed hourly in situ measurements with a semi-volatile thermal desorption aerosol gas chromatograph (SV-TAG) at a rural site (<q>T3</q>) located to the west of the urban center of Manaus, Brazil as part of the Green Ocean Amazon (GoAmazon2014/5) field campaign to measure intermediate-volatility and semi-volatile BVOCs and their oxidation products during the wet and dry seasons. We speciated and quantified 30 sesquiterpenes and 4 diterpenes with mean concentrations in the range 0.01-6.04 ng mĝ'3 (1-670 ppqv). We estimate that sesquiterpenes contribute approximately 14 and 12 % to the total reactive loss of O3 via reaction with isoprene or terpenes during the wet and dry seasons, respectively. This is reduced from ĝ1/4 50-70 % for within-canopy reactive O3 loss attributed to the ozonolysis of highly reactive sesquiterpenes (e.g., <i>β</i>-caryophyllene) that are reacted away before reaching our measurement site. We further identify a suite of their oxidation products in the gas and particle phases and explore their role in biogenic SOA formation in the central Amazon region. Synthesized authentic standards were also used to quantify gas- and particle-phase oxidation products derived from <i>β</i>-caryophyllene. Using tracer-based scaling methods for these products, we roughly estimate that sesquiterpene oxidation contributes at least 0.4-5 % (median 1 %) of total submicron OA mass. However, this is likely a low-end estimate, as evidence for additional unaccounted sesquiterpenes and their oxidation products clearly exists. By comparing our field data to laboratory-based sesquiterpene oxidation experiments we confirm that more than 40 additional observed compounds produced through sesquiterpene oxidation are present in Amazonian SOA, warranting further efforts towards more complete quantification. © 2018 Author(s). 2020-05-15T14:59:46Z 2020-05-15T14:59:46Z 2018 Artigo https://repositorio.inpa.gov.br/handle/1/15616 10.5194/acp-18-10433-2018 en Volume 18, Número 14, Pags. 10433-10457 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Atmospheric Chemistry and Physics
institution	Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection	INPA-RI
language	English
topic	Aerosol Dry Season Oxidation Source Apportionment Volatile Organic Compound Wet Season Amazonas Brasil Manaus
spellingShingle	Aerosol Dry Season Oxidation Source Apportionment Volatile Organic Compound Wet Season Amazonas Brasil Manaus Yee, Lindsay D. Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons
topic_facet	Aerosol Dry Season Oxidation Source Apportionment Volatile Organic Compound Wet Season Amazonas Brasil Manaus
description	<p>Biogenic volatile organic compounds (BVOCs) from the Amazon forest region represent the largest source of organic carbon emissions to the atmosphere globally. These BVOC emissions dominantly consist of volatile and intermediate-volatility terpenoid compounds that undergo chemical transformations in the atmosphere to form oxygenated condensable gases and secondary organic aerosol (SOA). We collected quartz filter samples with 12 h time resolution and performed hourly in situ measurements with a semi-volatile thermal desorption aerosol gas chromatograph (SV-TAG) at a rural site (<q>T3</q>) located to the west of the urban center of Manaus, Brazil as part of the Green Ocean Amazon (GoAmazon2014/5) field campaign to measure intermediate-volatility and semi-volatile BVOCs and their oxidation products during the wet and dry seasons. We speciated and quantified 30 sesquiterpenes and 4 diterpenes with mean concentrations in the range 0.01-6.04 ng mĝ'3 (1-670 ppqv). We estimate that sesquiterpenes contribute approximately 14 and 12 % to the total reactive loss of O3 via reaction with isoprene or terpenes during the wet and dry seasons, respectively. This is reduced from ĝ1/4 50-70 % for within-canopy reactive O3 loss attributed to the ozonolysis of highly reactive sesquiterpenes (e.g., <i>β</i>-caryophyllene) that are reacted away before reaching our measurement site. We further identify a suite of their oxidation products in the gas and particle phases and explore their role in biogenic SOA formation in the central Amazon region. Synthesized authentic standards were also used to quantify gas- and particle-phase oxidation products derived from <i>β</i>-caryophyllene. Using tracer-based scaling methods for these products, we roughly estimate that sesquiterpene oxidation contributes at least 0.4-5 % (median 1 %) of total submicron OA mass. However, this is likely a low-end estimate, as evidence for additional unaccounted sesquiterpenes and their oxidation products clearly exists. By comparing our field data to laboratory-based sesquiterpene oxidation experiments we confirm that more than 40 additional observed compounds produced through sesquiterpene oxidation are present in Amazonian SOA, warranting further efforts towards more complete quantification. © 2018 Author(s).
format	Artigo
author	Yee, Lindsay D.
author2	Isaacman-VanWertz, Gabriel A. Wernis, Rebecca A. Meng, Meng Rivera, Ventura Kreisberg, Nathan M. Hering, Susanne V. Bering, Mads S. Glasius, Marianne Upshur, Mary Alice Gray Bé, Ariana Thomson, Regan J. Geiger, Franz M. Offenberg, John H. Lewandowski, Michael Kourtchev, Ivan N. Kalberer, Markus Sá, Suzane S. de Martin, Scot T. Alexander, Michael Lizabeth Palm, Brett B. Hu, Weiwei Campuzano-Jost, Pedro Day, Douglas A. Ji?enez, José Luis Liu, Yingjun McKinney, Karena A. Artaxo, Paulo Viegas, Juarez Manzi, Antônio Ocimar Oliveira, Maria B.L. Souza, Rodrigo Augusto Ferreira de Machado, Luiz Augusto Toledo Longo, Karla Maria Goldstein, Allen H.
author2Str	Isaacman-VanWertz, Gabriel A. Wernis, Rebecca A. Meng, Meng Rivera, Ventura Kreisberg, Nathan M. Hering, Susanne V. Bering, Mads S. Glasius, Marianne Upshur, Mary Alice Gray Bé, Ariana Thomson, Regan J. Geiger, Franz M. Offenberg, John H. Lewandowski, Michael Kourtchev, Ivan N. Kalberer, Markus Sá, Suzane S. de Martin, Scot T. Alexander, Michael Lizabeth Palm, Brett B. Hu, Weiwei Campuzano-Jost, Pedro Day, Douglas A. Ji?enez, José Luis Liu, Yingjun McKinney, Karena A. Artaxo, Paulo Viegas, Juarez Manzi, Antônio Ocimar Oliveira, Maria B.L. Souza, Rodrigo Augusto Ferreira de Machado, Luiz Augusto Toledo Longo, Karla Maria Goldstein, Allen H.
title	Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons
title_short	Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons
title_full	Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons
title_fullStr	Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons
title_full_unstemmed	Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons
title_sort	observations of sesquiterpenes and their oxidation products in central amazonia during the wet and dry seasons
publisher	Atmospheric Chemistry and Physics
publishDate	2020
url	https://repositorio.inpa.gov.br/handle/1/15616
_version_	1787142090158768128
score	11.755432

Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons

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