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Selimovic V, Ketcherside D, Chaliyakunnel S, Wielgasz C, Permar W, Angot H, Millet DB, Fried A, Helmig D, Hu L. Atmospheric biogenic volatile organic compounds in the Alaskan Arctic tundra: constraints from measurements at Toolik Field Station. ATMOSPHERIC CHEMISTRY AND PHYSICS 2022; 22:14037-14058. [PMID: 37476609 PMCID: PMC10358744 DOI: 10.5194/acp-22-14037-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
The Arctic is a climatically sensitive region that has experienced warming at almost 3 times the global average rate in recent decades, leading to an increase in Arctic greenness and a greater abundance of plants that emit biogenic volatile organic compounds (BVOCs). These changes in atmospheric emissions are expected to significantly modify the overall oxidative chemistry of the region and lead to changes in VOC composition and abundance, with implications for atmospheric processes. Nonetheless, observations needed to constrain our current understanding of these issues in this critical environment are sparse. This work presents novel atmospheric in situ proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF-MS) measurements of VOCs at Toolik Field Station (TFS; 68°38' N, 149°36' W), in the Alaskan Arctic tundra during May-June 2019. We employ a custom nested grid version of the GEOS-Chem chemical transport model (CTM), driven with MEGANv2.1 (Model of Emissions of Gases and Aerosols from Nature version 2.1) biogenic emissions for Alaska at 0.25° × 0.3125° resolution, to interpret the observations in terms of their constraints on BVOC emissions, total reactive organic carbon (ROC) composition, and calculated OH reactivity (OHr) in this environment. We find total ambient mole fraction of 78 identified VOCs to be 6.3 ± 0.4 ppbv (10.8 ± 0.5 ppbC), with overwhelming (> 80 %) contributions are from short-chain oxygenated VOCs (OVOCs) including methanol, acetone and formaldehyde. Isoprene was the most abundant terpene identified. GEOS-Chem captures the observed isoprene (and its oxidation products), acetone and acetaldehyde abundances within the combined model and observation uncertainties (±25 %), but underestimates other OVOCs including methanol, formaldehyde, formic acid and acetic acid by a factor of 3 to 12. The negative model bias for methanol is attributed to underestimated biogenic methanol emissions for the Alaskan tundra in MEGANv2.1. Observed formaldehyde mole fractions increase exponentially with air temperature, likely reflecting its biogenic precursors and pointing to a systematic model underprediction of its secondary production. The median campaign-calculated OHr from VOCs measured at TFS was 0.7 s-1, roughly 5 % of the values typically reported in lower-latitude forested ecosystems. Ten species account for over 80 % of the calculated VOC OHr, with formaldehyde, isoprene and acetaldehyde together accounting for nearly half of the total. Simulated OHr based on median-modeled VOCs included in GEOS-Chem averages 0.5 s-1 and is dominated by isoprene (30 %) and monoterpenes (17 %). The data presented here serve as a critical evaluation of our knowledge of BVOCs and ROC budgets in high-latitude environments and represent a foundation for investigating and interpreting future warming-driven changes in VOC emissions in the Alaskan Arctic tundra.
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Affiliation(s)
- Vanessa Selimovic
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | - Damien Ketcherside
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | | | - Catherine Wielgasz
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | - Wade Permar
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
| | - Hélène Angot
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, USA
| | - Dylan B. Millet
- Department of Soil, Water, and Climate, University of Minnesota Twin Cities, St Paul, MN, USA
| | - Alan Fried
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, USA
| | | | - Lu Hu
- Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, USA
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2
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Mermet K, Perraudin E, Dusanter S, Sauvage S, Léonardis T, Flaud PM, Bsaibes S, Kammer J, Michoud V, Gratien A, Cirtog M, Al Ajami M, Truong F, Batut S, Hecquet C, Doussin JF, Schoemaecker C, Gros V, Locoge N, Villenave E. Atmospheric reactivity of biogenic volatile organic compounds in a maritime pine forest during the LANDEX episode 1 field campaign. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:144129. [PMID: 33310213 DOI: 10.1016/j.scitotenv.2020.144129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 11/18/2020] [Accepted: 11/21/2020] [Indexed: 06/12/2023]
Abstract
Trace gas measurements were performed during the LANDEX (the LANDes EXperiment) Episode 1 field campaign in the summer 2017, in one of the largest European maritime pine forests (> 95% Pinus pinaster) located in southwestern France. Efforts have been focused on obtaining a good speciation of 20 major biogenic volatile organic compounds (BVOCs, including pinenes, carenes, terpinenes, linalool, camphene, etc.). This was made possible by the development of a new and specific chromatographic method. In order to assess the role of BVOCs in the local gas phase chemistry budget, their reactivity with the main atmospheric oxidants (hydroxyl radicals (OH), ozone (O3) and nitrate radicals (NO3)) and the corresponding consumption rates were determined. When considering the OH reactivity with BVOCs, isoprene and linalool accounted for 10-47% of the OH depletion during daytime, and monoterpenes for 50-65%, whereas monoterpenes were the main contributors during the night (70-85%). Sesquiterpenes and monoterpenes were the main contributors to the ozone reactivity, especially β-caryophyllene (30-70%), with a maximum contribution during nighttime. Nighttime nitrate reactivity was predominantly due to monoterpenes (i.e. 90-95%). Five specific groups have been proposed to classify the 19 BVOCs measured in the forest, according to their reactivity with atmospheric oxidants and their concentrations. The total amount of BVOCs consumed under and above the forest canopy was evaluated for 7 BVOCs (i.e. isoprene, α-pinene, β-pinene, myrcene, limonene + cis-ocimene and Δ3-carene). The reactivity of atmospheric oxidants and BVOCs at a local level are discussed in order to highlight the compounds (BVOCs, other VOCs), the atmospheric oxidants and the main associated reactive processes observed under the canopy of a maritime pine forest.
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Affiliation(s)
- Kenneth Mermet
- Univ. Bordeaux, CNRS, EPOC, EPHE, UMR 5805, F-33600 Pessac, France; IMT Lille Douai, Univ. Lille - SAGE, Département Sciences de l'Atmosphère et Génie de l'Environnement, 59000 Lille, France
| | - Emilie Perraudin
- Univ. Bordeaux, CNRS, EPOC, EPHE, UMR 5805, F-33600 Pessac, France
| | - Sébastien Dusanter
- IMT Lille Douai, Univ. Lille - SAGE, Département Sciences de l'Atmosphère et Génie de l'Environnement, 59000 Lille, France
| | - Stéphane Sauvage
- IMT Lille Douai, Univ. Lille - SAGE, Département Sciences de l'Atmosphère et Génie de l'Environnement, 59000 Lille, France
| | - Thierry Léonardis
- IMT Lille Douai, Univ. Lille - SAGE, Département Sciences de l'Atmosphère et Génie de l'Environnement, 59000 Lille, France
| | | | - Sandy Bsaibes
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE, UMR CNRS-CEA-UVSQ, 91191 Gif-sur-Yvette, France
| | - Julien Kammer
- Univ. Bordeaux, CNRS, EPOC, EPHE, UMR 5805, F-33600 Pessac, France; Laboratoire des Sciences du Climat et de l'Environnement, LSCE, UMR CNRS-CEA-UVSQ, 91191 Gif-sur-Yvette, France
| | - Vincent Michoud
- LISA, UMR CNRS 7583, Université Paris-Est Créteil, Université de Paris, Institut Pierre Simon Laplace (IPSL), Créteil, France
| | - Aline Gratien
- LISA, UMR CNRS 7583, Université Paris-Est Créteil, Université de Paris, Institut Pierre Simon Laplace (IPSL), Créteil, France
| | - Manuela Cirtog
- LISA, UMR CNRS 7583, Université Paris-Est Créteil, Université de Paris, Institut Pierre Simon Laplace (IPSL), Créteil, France
| | - Mohamad Al Ajami
- Laboratoire Physico Chimie des Processus de Combustion et de l'Atmosphère, PC2A, UMR 8522, 59655 Villeneuve d'Ascq, France
| | - François Truong
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE, UMR CNRS-CEA-UVSQ, 91191 Gif-sur-Yvette, France
| | - Sébastien Batut
- Laboratoire Physico Chimie des Processus de Combustion et de l'Atmosphère, PC2A, UMR 8522, 59655 Villeneuve d'Ascq, France
| | - Christophe Hecquet
- Laboratoire Physico Chimie des Processus de Combustion et de l'Atmosphère, PC2A, UMR 8522, 59655 Villeneuve d'Ascq, France
| | - Jean-Francois Doussin
- LISA, UMR CNRS 7583, Université Paris-Est Créteil, Université de Paris, Institut Pierre Simon Laplace (IPSL), Créteil, France
| | - Coralie Schoemaecker
- Laboratoire Physico Chimie des Processus de Combustion et de l'Atmosphère, PC2A, UMR 8522, 59655 Villeneuve d'Ascq, France
| | - Valérie Gros
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE, UMR CNRS-CEA-UVSQ, 91191 Gif-sur-Yvette, France
| | - Nadine Locoge
- IMT Lille Douai, Univ. Lille - SAGE, Département Sciences de l'Atmosphère et Génie de l'Environnement, 59000 Lille, France
| | - Eric Villenave
- Univ. Bordeaux, CNRS, EPOC, EPHE, UMR 5805, F-33600 Pessac, France.
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3
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Travis KR, Heald CL, Allen HM, Apel EC, Arnold SR, Blake DR, Brune WH, Chen X, Commane R, Crounse JD, Daube BC, Diskin GS, Elkins JW, Evans MJ, Hall SR, Hintsa EJ, Hornbrook RS, Kasibhatla PS, Kim MJ, Luo G, McKain K, Millet DB, Moore FL, Peischl J, Ryerson TB, Sherwen T, Thames AB, Ullmann K, Wang X, Wennberg PO, Wolfe GM, Yu F. Constraining remote oxidation capacity with ATom observations. ATMOSPHERIC CHEMISTRY AND PHYSICS 2020; 20:7753-7781. [PMID: 33688335 PMCID: PMC7939060 DOI: 10.5194/acp-20-7753-2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The global oxidation capacity, defined as the tropospheric mean concentration of the hydroxyl radical (OH), controls the lifetime of reactive trace gases in the atmosphere such as methane and carbon monoxide (CO). Models tend to underestimate the methane lifetime and CO concentrations throughout the troposphere, which is consistent with excessive OH. Approximately half of the oxidation of methane and non-methane volatile organic compounds (VOCs) is thought to occur over the oceans where oxidant chemistry has received little validation due to a lack of observational constraints. We use observations from the first two deployments of the NASA ATom aircraft campaign during July-August 2016 and January-February 2017 to evaluate the oxidation capacity over the remote oceans and its representation by the GEOS-Chem chemical transport model. The model successfully simulates the magnitude and vertical profile of remote OH within the measurement uncertainties. Comparisons against the drivers of OH production (water vapor, ozone, and NO y concentrations, ozone photolysis frequencies) also show minimal bias, with the exception of wintertime NO y . The severe model overestimate of NO y during this period may indicate insufficient wet scavenging and/or missing loss on sea-salt aerosols. Large uncertainties in these processes require further study to improve simulated NO y partitioning and removal in the troposphere, but preliminary tests suggest that their overall impact could marginally reduce the model bias in tropospheric OH. During the ATom-1 deployment, OH reactivity (OHR) below 3 km is significantly enhanced, and this is not captured by the sum of its measured components (cOHRobs) or by the model (cOHRmod). This enhancement could suggest missing reactive VOCs but cannot be explained by a comprehensive simulation of both biotic and abiotic ocean sources of VOCs. Additional sources of VOC reactivity in this region are difficult to reconcile with the full suite of ATom measurement constraints. The model generally reproduces the magnitude and seasonality of cOHRobs but underestimates the contribution of oxygenated VOCs, mainly acetaldehyde, which is severely underestimated throughout the troposphere despite its calculated lifetime of less than a day. Missing model acetaldehyde in previous studies was attributed to measurement uncertainties that have been largely resolved. Observations of peroxyacetic acid (PAA) provide new support for remote levels of acetaldehyde. The underestimate in both model acetaldehyde and PAA is present throughout the year in both hemispheres and peaks during Northern Hemisphere summer. The addition of ocean sources of VOCs in the model increases cOHRmod by 3% to 9% and improves model-measurement agreement for acetaldehyde, particularly in winter, but cannot resolve the model summertime bias. Doing so would require 100 Tg yr-1 of a long-lived unknown precursor throughout the year with significant additional emissions in the Northern Hemisphere summer. Improving the model bias for remote acetaldehyde and PAA is unlikely to fully resolve previously reported model global biases in OH and methane lifetime, suggesting that future work should examine the sources and sinks of OH over land.
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Affiliation(s)
- Katherine R. Travis
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Colette L. Heald
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Hannah M. Allen
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Eric C. Apel
- Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
| | - Stephen R. Arnold
- Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, UK
| | - Donald R. Blake
- Department of Chemistry, University of California Irvine, Irvine, CA, USA
| | - William H. Brune
- Department of Meteorology, Pennsylvania State University, University Park, PA, USA
| | - Xin Chen
- University of Minnesota, Department of Soil, Water and Climate, St. Paul, MN, USA
| | - Róisín Commane
- Dept. of Earth & Environmental Sciences of Lamont-Doherty Earth Observatory and Columbia University, Palisades, NY, USA
| | - John D. Crounse
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA
| | - Bruce C. Daube
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | | | - James W. Elkins
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
| | - Mathew J. Evans
- Wolfson Atmospheric Chemistry Laboratories (WACL), Department of Chemistry, University of York, York, UK
- National Centre for Atmospheric Science (NCAS), University of York, York, UK
| | - Samuel R. Hall
- Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
| | - Eric J. Hintsa
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
- Cooperative Institute for Research in Environmental Science, University of Colorado, CO, USA
| | - Rebecca S. Hornbrook
- Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
| | | | - Michelle J. Kim
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA
| | - Gan Luo
- Atmospheric Sciences Research Center, University of Albany, Albany, NY, USA
| | - Kathryn McKain
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
- Cooperative Institute for Research in Environmental Science, University of Colorado, CO, USA
| | - Dylan B. Millet
- University of Minnesota, Department of Soil, Water and Climate, St. Paul, MN, USA
| | - Fred L. Moore
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
- Cooperative Institute for Research in Environmental Science, University of Colorado, CO, USA
| | - Jeffrey Peischl
- Cooperative Institute for Research in Environmental Science, University of Colorado, CO, USA
- Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
| | - Thomas B. Ryerson
- Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
| | - Tomás Sherwen
- Wolfson Atmospheric Chemistry Laboratories (WACL), Department of Chemistry, University of York, York, UK
- National Centre for Atmospheric Science (NCAS), University of York, York, UK
| | - Alexander B. Thames
- Department of Meteorology, Pennsylvania State University, University Park, PA, USA
| | - Kirk Ullmann
- Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
| | - Xuan Wang
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- School of Energy and Environment, City University of Hong Kong, Hong Kong, China
| | - Paul O. Wennberg
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA
| | - Glenn M. Wolfe
- Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA
| | - Fangqun Yu
- Atmospheric Sciences Research Center, University of Albany, Albany, NY, USA
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4
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Kim S, Sanchez D, Wang M, Seco R, Jeong D, Hughes S, Barletta B, Blake DR, Jung J, Kim D, Lee G, Lee M, Ahn J, Lee SD, Cho G, Sung MY, Lee YH, Kim DB, Kim Y, Woo JH, Jo D, Park R, Park JH, Hong YD, Hong JH. OH reactivity in urban and suburban regions in Seoul, South Korea - an East Asian megacity in a rapid transition. Faraday Discuss 2017; 189:231-51. [PMID: 27138104 DOI: 10.1039/c5fd00230c] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
South Korea has recently achieved developed country status with the second largest megacity in the world, the Seoul Metropolitan Area (SMA). This study provides insights into future changes in air quality for rapidly emerging megacities in the East Asian region. We present total OH reactivity observations in the SMA conducted at an urban Seoul site (May-June, 2015) and a suburban forest site (Sep, 2015). The total OH reactivity in an urban site during the daytime was observed at similar levels (∼15 s(-1)) to those previously reported from other East Asian megacity studies. Trace gas observations indicate that OH reactivity is largely accounted for by NOX (∼50%) followed by volatile organic compounds (VOCs) (∼35%). Isoprene accounts for a substantial fraction of OH reactivity among the comprehensive VOC observational dataset (25-47%). In general, observed total OH reactivity can be accounted for by the observed trace gas dataset. However, observed total OH reactivity in the suburban forest area cannot be largely accounted for (∼70%) by the trace gas measurements. The importance of biogenic VOC (BVOCs) emissions and oxidations used to evaluate the impacts of East Asian megacity outflows for the regional air quality and climate contexts are highlighted in this study.
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Affiliation(s)
- Saewung Kim
- Department of Earth System Science, University of California, Irvine, Irvine CA 92697, USA.
| | - Dianne Sanchez
- Department of Earth System Science, University of California, Irvine, Irvine CA 92697, USA.
| | - Mark Wang
- Department of Earth System Science, University of California, Irvine, Irvine CA 92697, USA.
| | - Roger Seco
- Department of Earth System Science, University of California, Irvine, Irvine CA 92697, USA.
| | - Daun Jeong
- Department of Earth System Science, University of California, Irvine, Irvine CA 92697, USA.
| | - Stacey Hughes
- Department of Chemistry, University of California, Irvine, Irvine CA 92697, USA
| | - Barbara Barletta
- Department of Chemistry, University of California, Irvine, Irvine CA 92697, USA
| | - Donald R Blake
- Department of Chemistry, University of California, Irvine, Irvine CA 92697, USA
| | - Jinsang Jung
- The Division of Metrology for Quality of Life, Korea Research Institute of Standards and Science, Daejeon, South Korea 34113
| | - Deugsoo Kim
- Department of Environmental Engineering, Kunsan National University, Kunsan, South Korea 573-701
| | - Gangwoong Lee
- Department of Environmental Sciences, Hankuk University of Foreign Studies, Yongin, South Korea 449-791
| | - Meehye Lee
- Department of Earth and Environmental Sciences, Korea University, Seoul, South Korea 02841
| | - Joonyoung Ahn
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
| | - Sang-Deok Lee
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
| | - Gangnam Cho
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
| | - Min-Young Sung
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
| | - Yong-Hwan Lee
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
| | - Dan Bi Kim
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
| | - Younha Kim
- Division of Interdisciplinary Studies, Konkuk University, Seoul, South Korea 05025
| | - Jung-Hun Woo
- Division of Interdisciplinary Studies, Konkuk University, Seoul, South Korea 05025
| | - Duseong Jo
- School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea 08826
| | - Rokjin Park
- School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea 08826
| | - Jeong-Hoo Park
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
| | - You-Deog Hong
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
| | - Ji-Hyung Hong
- Department of Climate and Air Quality, National Institute of Environmental Research, Incheon, South Korea 22689
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5
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Yuan B, Koss AR, Warneke C, Coggon M, Sekimoto K, de Gouw JA. Proton-Transfer-Reaction Mass Spectrometry: Applications in Atmospheric Sciences. Chem Rev 2017; 117:13187-13229. [DOI: 10.1021/acs.chemrev.7b00325] [Citation(s) in RCA: 191] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Bin Yuan
- Institute
for Environment and Climate Research, Jinan University, Guangzhou 510632, China
- Chemical
Sciences Division, NOAA Earth System Research Laboratory (ESRL), Boulder, Colorado 80305, United States
- Cooperative
Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado 80309, United States
- Laboratory
of Atmospheric Chemistry, Paul Scherrer Institute, Villigen 5232, Switzerland
| | - Abigail R. Koss
- Chemical
Sciences Division, NOAA Earth System Research Laboratory (ESRL), Boulder, Colorado 80305, United States
- Cooperative
Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado 80309, United States
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Carsten Warneke
- Chemical
Sciences Division, NOAA Earth System Research Laboratory (ESRL), Boulder, Colorado 80305, United States
- Cooperative
Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado 80309, United States
| | - Matthew Coggon
- Chemical
Sciences Division, NOAA Earth System Research Laboratory (ESRL), Boulder, Colorado 80305, United States
- Cooperative
Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado 80309, United States
| | - Kanako Sekimoto
- Chemical
Sciences Division, NOAA Earth System Research Laboratory (ESRL), Boulder, Colorado 80305, United States
- Graduate
School of Nanobioscience, Yokohama City University, Yokohama 236-0027, Japan
| | - Joost A. de Gouw
- Cooperative
Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado 80309, United States
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
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6
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Nölscher AC, Yañez-Serrano AM, Wolff S, de Araujo AC, Lavrič JV, Kesselmeier J, Williams J. Unexpected seasonality in quantity and composition of Amazon rainforest air reactivity. Nat Commun 2016; 7:10383. [PMID: 26797390 PMCID: PMC4735797 DOI: 10.1038/ncomms10383] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 12/04/2015] [Indexed: 11/16/2022] Open
Abstract
The hydroxyl radical (OH) removes most atmospheric pollutants from air. The loss frequency of OH radicals due to the combined effect of all gas-phase OH reactive species is a measureable quantity termed total OH reactivity. Here we present total OH reactivity observations in pristine Amazon rainforest air, as a function of season, time-of-day and height (0–80 m). Total OH reactivity is low during wet (10 s−1) and high during dry season (62 s−1). Comparison to individually measured trace gases reveals strong variation in unaccounted for OH reactivity, from 5 to 15% missing in wet-season afternoons to mostly unknown (average 79%) during dry season. During dry-season afternoons isoprene, considered the dominant reagent with OH in rainforests, only accounts for ∼20% of the total OH reactivity. Vertical profiles of OH reactivity are shaped by biogenic emissions, photochemistry and turbulent mixing. The rainforest floor was identified as a significant but poorly characterized source of OH reactivity. The degree to which biogenic volatile organic compounds released by the Amazon canopy impact oxidation capacity remains uncertain. Here, the authors evaluate the vertical distribution of total hydroxyl radical reactivity and individual trace gases in the Amazon rainforest, and determine seasonal variations.
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Affiliation(s)
- A C Nölscher
- Air Chemistry and Biogeochemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany
| | - A M Yañez-Serrano
- Air Chemistry and Biogeochemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany.,Clima e Ambiente (CLIAMB), Instituto Nacional de Pesquisas da Amazônia (INPA), Avenue André Araújo 2936, Manaus, Amazonas CEP 69083-000, Brazil
| | - S Wolff
- Air Chemistry and Biogeochemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany.,Clima e Ambiente (CLIAMB), Instituto Nacional de Pesquisas da Amazônia (INPA), Avenue André Araújo 2936, Manaus, Amazonas CEP 69083-000, Brazil
| | - A Carioca de Araujo
- Embrapa Amazônia Oriental, Empresa Brasileira de Pesquisa Agropecuaria, Belem, Pará CEP 66095-100, Brazil
| | - J V Lavrič
- Biogeochemical Systems Department, Max Planck Institute for Biogeochemistry, Jena 07745, Germany
| | - J Kesselmeier
- Air Chemistry and Biogeochemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany
| | - J Williams
- Air Chemistry and Biogeochemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany
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7
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Pöschl U, Shiraiwa M. Multiphase chemistry at the atmosphere-biosphere interface influencing climate and public health in the anthropocene. Chem Rev 2015; 115:4440-75. [PMID: 25856774 DOI: 10.1021/cr500487s] [Citation(s) in RCA: 232] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ulrich Pöschl
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
| | - Manabu Shiraiwa
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
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8
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Madronich S, Shao M, Wilson SR, Solomon KR, Longstreth JD, Tang XY. Changes in air quality and tropospheric composition due to depletion of stratospheric ozone and interactions with changing climate: implications for human and environmental health. Photochem Photobiol Sci 2015; 14:149-69. [DOI: 10.1039/c4pp90037e] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
UV radiation is an essential driver for the formation of photochemical smog, which includes ground-level ozone and particulate matter (PM).
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Affiliation(s)
- S. Madronich
- Atmospheric Chemistry Division
- National Center for Atmospheric Research
- Boulder
- USA
| | - M. Shao
- Peking University
- College of Environmental Science and Engineering
- Beijing 100871
- China
| | - S. R. Wilson
- School of Chemistry
- University of Wollongong
- NSW
- Australia
| | - K. R. Solomon
- Centre for Toxicology and School of Environmental Sciences
- University of Guelph
- ON
- Canada
| | | | - X. Y. Tang
- Peking University
- College of Environmental Science and Engineering
- Beijing 100871
- China
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9
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Perring AE, Pusede SE, Cohen RC. An Observational Perspective on the Atmospheric Impacts of Alkyl and Multifunctional Nitrates on Ozone and Secondary Organic Aerosol. Chem Rev 2013; 113:5848-70. [DOI: 10.1021/cr300520x] [Citation(s) in RCA: 150] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. E. Perring
- Department
of Chemistry, and ‡Department of Earth and Planetary Sciences, University of California Berkeley, Berkeley, California
94720, United States
| | - S. E. Pusede
- Department
of Chemistry, and ‡Department of Earth and Planetary Sciences, University of California Berkeley, Berkeley, California
94720, United States
| | - R. C. Cohen
- Department
of Chemistry, and ‡Department of Earth and Planetary Sciences, University of California Berkeley, Berkeley, California
94720, United States
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10
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Iinuma Y, Kahnt A, Mutzel A, Böge O, Herrmann H. Ozone-driven secondary organic aerosol production chain. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:3639-3647. [PMID: 23488636 DOI: 10.1021/es305156z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Acidic sulfate particles are known to enhance secondary organic aerosol (SOA) mass in the oxidation of biogenic volatile organic compounds (BVOCs) through accretion reactions and organosulfate formation. Enhanced phase transfer of epoxides, which form during the BVOC oxidation, into the acidified sulfate particles is shown to explain the latter process. We report here a newly identified ozone-driven SOA production chain that increases SOA formation dramatically. In this process, the epoxides interact with acidic sulfate particles, forming a new generation of highly reactive VOCs through isomerization. These VOCs partition back into the gas phase and undergo a new round of SOA forming oxidation reactions. Depending on the nature of the isomerized VOCs, their next generation oxidation forms highly oxygenated terpenoic acids or organosulfates. Atmospheric evidence is presented for the existence of marker compounds originating from this chain. The identified process partly explains the enhanced SOA formation in the presence of acidic particles on a molecular basis and could be an important source of missing SOA precursor VOCs that are currently not included in atmospheric models.
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Affiliation(s)
- Yoshiteru Iinuma
- Leibniz-Institut für Troposphärenforschung (TROPOS), Permoserstr. 15, D-04318, Leipzig, Germany
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11
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Matsunaga SN, Chatani S, Nakatsuka S, Kusumoto D, Kubota K, Utsumi Y, Enoki T, Tani A, Hiura T. Determination and potential importance of diterpene (kaur-16-ene) emitted from dominant coniferous trees in Japan. CHEMOSPHERE 2012; 87:886-893. [PMID: 22342335 DOI: 10.1016/j.chemosphere.2012.01.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 01/19/2012] [Accepted: 01/20/2012] [Indexed: 05/31/2023]
Abstract
Reactive volatile organic compounds (VOCs) are known to affect atmospheric chemistry. Biogenic VOCs (BVOCs) have a significant impact on regional air quality due to their large emission rates and high reactivities. Diterpenes (most particularly, kaur-16-ene) were detected in all of the 205 enclosure air samples collected over multiple seasons at two different sites from Cryptomeria japonica and Chamaecyparis obtusa trees, the dominant coniferous trees in Japan,. The emission rate of kaur-16-ene, was determined to be from 0.01 to 7.1 μg dwg(-1) h(-1) (average: 0.61 μg dwg(-1) h(-1)) employing branch enclosure measurements using adsorbent sampling followed by solid phase-liquid extraction techniques. The emission rate was comparable to that of monoterpenes, which is known major BVOC emissions, collected from the same branches. In addition, total emission of kaur-16-ene at 30°C was estimated to exceed that of total anthropogenic VOC emissions.
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Affiliation(s)
- Sou N Matsunaga
- Auto Oil and New Fuels Department, Japan Petroleum Energy Center, 4-3-9 Toranomon, Minato-Ku, Tokyo 105-0001, Japan.
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12
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Stone D, Whalley LK, Heard DE. Tropospheric OH and HO2 radicals: field measurements and model comparisons. Chem Soc Rev 2012; 41:6348-404. [DOI: 10.1039/c2cs35140d] [Citation(s) in RCA: 332] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Whalley L, Stone D, Heard D. New Insights into the Tropospheric Oxidation of Isoprene: Combining Field Measurements, Laboratory Studies, Chemical Modelling and Quantum Theory. Top Curr Chem (Cham) 2012; 339:55-95. [DOI: 10.1007/128_2012_359] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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14
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Bracho-Nunez A, Welter S, Staudt M, Kesselmeier J. Plant-specific volatile organic compound emission rates from young and mature leaves of Mediterranean vegetation. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd015521] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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Ruuskanen TM, Müller M, Schnitzhofer R, Karl T, Graus M, Bamberger I, Hörtnagl L, Brilli F, Wohlfahrt G, Hansel A. Eddy covariance VOC emission and deposition fluxes above grassland using PTR-TOF. ATMOSPHERIC CHEMISTRY AND PHYSICS 2011; 11:10.5194/acp-11-611-2011. [PMID: 24348524 PMCID: PMC3859318 DOI: 10.5194/acp-11-611-2011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Eddy covariance (EC) is the preferable technique for flux measurements since it is the only direct flux determination method. It requires a continuum of high time resolution measurements (e.g. 5-20 Hz). For volatile organic compounds (VOC) soft ionization via proton transfer reaction has proven to be a quantitative method for real time mass spectrometry; here we use a proton transfer reaction time of flight mass spectrometer (PTR-TOF) for 10 Hz EC measurements of full mass spectra up to m/z 315. The mass resolution of the PTR-TOF enabled the identification of chemical formulas and separation of oxygenated and hydrocarbon species exhibiting the same nominal mass. We determined 481 ion mass peaks from ambient air concentration above a managed, temperate mountain grassland in Neustift, Stubai Valley, Austria. During harvesting we found significant fluxes of 18 compounds distributed over 43 ions, including protonated parent compounds, as well as their isotopes and fragments and VOC-H+ - water clusters. The dominant BVOC fluxes were methanol, acetaldehyde, ethanol, hexenal and other C6 leaf wound compounds, acetone, acetic acid, monoterpenes and sequiterpenes. The smallest reliable fluxes we determined were less than 0.1 nmol m-2 s-1, as in the case of sesquiterpene emissions from freshly cut grass. Terpenoids, including mono- and sesquiterpenes, were also deposited to the grassland before and after the harvesting. During cutting, total VOC emission fluxes up to 200 nmolC m-2 s-1 were measured. Methanol emissions accounted for half of the emissions of oxygenated VOCs and a third of the carbon of all measured VOC emissions during harvesting.
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Affiliation(s)
- T. M. Ruuskanen
- Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
| | - M. Müller
- Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
- Ionicon Analytik, Innsbruck, Austria
| | - R. Schnitzhofer
- Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
- Ionicon Analytik, Innsbruck, Austria
| | - T. Karl
- Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
- Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO 80307, USA
| | - M. Graus
- Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
| | - I. Bamberger
- Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
| | - L. Hörtnagl
- Institute of Ecology, University of Innsbruck, Innsbruck, Austria
| | - F. Brilli
- Ionicon Analytik, Innsbruck, Austria
| | - G. Wohlfahrt
- Institute of Ecology, University of Innsbruck, Innsbruck, Austria
| | - A. Hansel
- Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
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