Articles | Volume 21, issue 8
https://doi.org/10.5194/acp-21-6231-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-21-6231-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Apr 2021
Research article |
| 26 Apr 2021
| 26 Apr 2021
Total OH reactivity over the Amazon rainforest: variability with temperature, wind, rain, altitude, time of day, season, and an overall budget closure
Eva Y. Pfannerstill
CORRESPONDING AUTHOR
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
now at: Department of Environmental Science, Policy, and Management,
University of California, Berkeley, CA 94720, USA
Nina G. Reijrink
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Département Sciences de l'Atmosphère et Génie de
l'Environnement (SAGE), IMT Lille Douai, 59508 Douai, France
Achim Edtbauer
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Akima Ringsdorf
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Nora Zannoni
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Alessandro Araújo
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) Amazonia
Oriental, CEP 66095-100, Belém, Brazil
Florian Ditas
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
now at: Hessisches Landesamt für Naturschutz, Umwelt und
Geologie, 65203 Wiesbaden, Germany
Bruna A. Holanda
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Marta O. Sá
Instituto Nacional de Pesquisas da Amazônia (INPA), CEP 69067-375,
Manaus, Brazil
Anywhere Tsokankunku
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
David Walter
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Stefan Wolff
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Jošt V. Lavrič
Biogeochemical Processes Department, Max Planck Institute for
Biogeochemistry, 07745 Jena, Germany
Christopher Pöhlker
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Matthias Sörgel
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Jonathan Williams
Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck
Institute for Chemistry, 55128 Mainz, Germany
Energy, Environment and Water Research Center, The Cyprus Institute,
1645 Nicosia, Cyprus
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Cited
29 citations as recorded by crossref.
- Vertically resolved aerosol variability at the Amazon Tall Tower Observatory under wet-season conditions M. Franco et al. 10.5194/acp-24-8751-2024
- Turbulent transport and reactions of plant-emitted hydrocarbons in an Amazonian rain forest J. Fuentes et al. 10.1016/j.atmosenv.2022.119094
- Role of space station instruments for improving tropical carbon flux estimates using atmospheric data P. Palmer et al. 10.1038/s41526-022-00231-6
- Intra- and interannual changes in isoprene emission from central Amazonia E. Gomes Alves et al. 10.5194/acp-23-8149-2023
- Temperature-dependent emissions dominate aerosol and ozone formation in Los Angeles E. Pfannerstill et al. 10.1126/science.adg8204
- Seasonal variations in photooxidant formation and light absorption in aqueous extracts of ambient particles L. Ma et al. 10.5194/acp-24-1-2024
- Investigating carbonyl compounds above the Amazon rainforest using a proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS) with NO+ chemical ionization A. Ringsdorf et al. 10.5194/acp-24-11883-2024
- Seasonal investigation of ultrafine-particle organic composition in an eastern Amazonian rainforest A. Thomas et al. 10.5194/acp-25-959-2025
- An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity T. Carter et al. 10.5194/acp-22-12093-2022
- Upgrading Emission Standards Inadvertently Increased OH Reactivity from Light-Duty Diesel Truck Exhaust in China: Evidence from Direct LP-LIF Measurement Q. Sha et al. 10.1021/acs.est.2c02944
- Reassessing the missing OH reactivity based on organic molecular formulas: Comparison between urban and regional environments J. Qi et al. 10.1016/j.atmosenv.2025.121240
- Advancing green analytical solutions: A review of proton transfer reaction mass spectrometry in atmospheric aerosol research Y. Li 10.1016/j.greeac.2024.100175
- Volatile organic compound fluxes in the agricultural San Joaquin Valley – spatial distribution, source attribution, and inventory comparison E. Pfannerstill et al. 10.5194/acp-23-12753-2023
- Climate and Tropospheric Oxidizing Capacity A. Fiore et al. 10.1146/annurev-earth-032320-090307
- How rainfall events modify trace gas mixing ratios in central Amazonia L. Machado et al. 10.5194/acp-24-8893-2024
- Daytime isoprene nitrates under changing NOx and O3 A. Mayhew et al. 10.5194/acp-23-8473-2023
- A Review of the Direct Measurement of Total OH Reactivity: Ambient Air and Vehicular Emission X. Yang 10.3390/su152316246
- How weather events modify aerosol particle size distributions in the Amazon boundary layer L. Machado et al. 10.5194/acp-21-18065-2021
- Cryptogamic organisms are a substantial source and sink for volatile organic compounds in the Amazon region A. Edtbauer et al. 10.1038/s43247-021-00328-y
- Inferring the diurnal variability of OH radical concentrations over the Amazon from BVOC measurements A. Ringsdorf et al. 10.1038/s41598-023-41748-4
- Constraining the budget of NOx and volatile organic compounds at a remote tropical island using multi-platform observations and WRF-Chem model simulations C. Poraicu et al. 10.5194/acp-25-6903-2025
- A review on atmospheric aerosols and dusts in different tropical forest ecosystems and policy recommendations toward climate resilience A. Bridhikitti et al. 10.1016/j.atmosenv.2025.121215
- Aging of Volatile Organic Compounds in October 2017 Northern California Wildfire Plumes Y. Liang et al. 10.1021/acs.est.1c05684
- NO3 reactivity during a summer period in a temperate forest below and above the canopy P. Dewald et al. 10.5194/acp-24-8983-2024
- Elucidating key factors in regulating budgets of ozone and its precursors in atmospheric boundary layer X. Song et al. 10.1038/s41612-024-00818-8
- Investigation of OH-reactivity budget in the isoprene, α-pinene and m-xylene oxidation with OH under high NOx conditions Y. Sakamoto et al. 10.1016/j.atmosenv.2021.118916
- Measurements of absolute line strength of the ν1 fundamental transitions of OH radical and rate coefficient of the reaction OH + H2O2 with mid-infrared two-color time-resolved dual-comb spectroscopy C. Chang et al. 10.1063/5.0176311
- Carbonyl Compounds Regulate Atmospheric Oxidation Capacity and Particulate Sulfur Chemistry in the Coastal Atmosphere M. Zhao et al. 10.1021/acs.est.4c03947
- The improved comparative reactivity method (ICRM): measurements of OH reactivity under high-NOx conditions in ambient air W. Wang et al. 10.5194/amt-14-2285-2021
28 citations as recorded by crossref.
- Vertically resolved aerosol variability at the Amazon Tall Tower Observatory under wet-season conditions M. Franco et al. 10.5194/acp-24-8751-2024
- Turbulent transport and reactions of plant-emitted hydrocarbons in an Amazonian rain forest J. Fuentes et al. 10.1016/j.atmosenv.2022.119094
- Role of space station instruments for improving tropical carbon flux estimates using atmospheric data P. Palmer et al. 10.1038/s41526-022-00231-6
- Intra- and interannual changes in isoprene emission from central Amazonia E. Gomes Alves et al. 10.5194/acp-23-8149-2023
- Temperature-dependent emissions dominate aerosol and ozone formation in Los Angeles E. Pfannerstill et al. 10.1126/science.adg8204
- Seasonal variations in photooxidant formation and light absorption in aqueous extracts of ambient particles L. Ma et al. 10.5194/acp-24-1-2024
- Investigating carbonyl compounds above the Amazon rainforest using a proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS) with NO+ chemical ionization A. Ringsdorf et al. 10.5194/acp-24-11883-2024
- Seasonal investigation of ultrafine-particle organic composition in an eastern Amazonian rainforest A. Thomas et al. 10.5194/acp-25-959-2025
- An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity T. Carter et al. 10.5194/acp-22-12093-2022
- Upgrading Emission Standards Inadvertently Increased OH Reactivity from Light-Duty Diesel Truck Exhaust in China: Evidence from Direct LP-LIF Measurement Q. Sha et al. 10.1021/acs.est.2c02944
- Reassessing the missing OH reactivity based on organic molecular formulas: Comparison between urban and regional environments J. Qi et al. 10.1016/j.atmosenv.2025.121240
- Advancing green analytical solutions: A review of proton transfer reaction mass spectrometry in atmospheric aerosol research Y. Li 10.1016/j.greeac.2024.100175
- Volatile organic compound fluxes in the agricultural San Joaquin Valley – spatial distribution, source attribution, and inventory comparison E. Pfannerstill et al. 10.5194/acp-23-12753-2023
- Climate and Tropospheric Oxidizing Capacity A. Fiore et al. 10.1146/annurev-earth-032320-090307
- How rainfall events modify trace gas mixing ratios in central Amazonia L. Machado et al. 10.5194/acp-24-8893-2024
- Daytime isoprene nitrates under changing NOx and O3 A. Mayhew et al. 10.5194/acp-23-8473-2023
- A Review of the Direct Measurement of Total OH Reactivity: Ambient Air and Vehicular Emission X. Yang 10.3390/su152316246
- How weather events modify aerosol particle size distributions in the Amazon boundary layer L. Machado et al. 10.5194/acp-21-18065-2021
- Cryptogamic organisms are a substantial source and sink for volatile organic compounds in the Amazon region A. Edtbauer et al. 10.1038/s43247-021-00328-y
- Inferring the diurnal variability of OH radical concentrations over the Amazon from BVOC measurements A. Ringsdorf et al. 10.1038/s41598-023-41748-4
- Constraining the budget of NOx and volatile organic compounds at a remote tropical island using multi-platform observations and WRF-Chem model simulations C. Poraicu et al. 10.5194/acp-25-6903-2025
- A review on atmospheric aerosols and dusts in different tropical forest ecosystems and policy recommendations toward climate resilience A. Bridhikitti et al. 10.1016/j.atmosenv.2025.121215
- Aging of Volatile Organic Compounds in October 2017 Northern California Wildfire Plumes Y. Liang et al. 10.1021/acs.est.1c05684
- NO3 reactivity during a summer period in a temperate forest below and above the canopy P. Dewald et al. 10.5194/acp-24-8983-2024
- Elucidating key factors in regulating budgets of ozone and its precursors in atmospheric boundary layer X. Song et al. 10.1038/s41612-024-00818-8
- Investigation of OH-reactivity budget in the isoprene, α-pinene and m-xylene oxidation with OH under high NOx conditions Y. Sakamoto et al. 10.1016/j.atmosenv.2021.118916
- Measurements of absolute line strength of the ν1 fundamental transitions of OH radical and rate coefficient of the reaction OH + H2O2 with mid-infrared two-color time-resolved dual-comb spectroscopy C. Chang et al. 10.1063/5.0176311
- Carbonyl Compounds Regulate Atmospheric Oxidation Capacity and Particulate Sulfur Chemistry in the Coastal Atmosphere M. Zhao et al. 10.1021/acs.est.4c03947
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Short summary
Tropical forests are globally significant for atmospheric chemistry. However, the mixture of reactive organic gases emitted by these ecosystems is poorly understood. By comprehensive observations at an Amazon forest site, we show that oxygenated species were previously underestimated in their contribution to the tropical-forest reactant mix. Our results show rain and temperature effects and have implications for models and the understanding of ozone and particle formation above tropical forests.
Tropical forests are globally significant for atmospheric chemistry. However, the mixture of...
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