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KAWAMURA K. Geochemical studies of low molecular weight organic acids in the atmosphere: sources, formation pathways, and gas/particle partitioning. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2023; 99:1-28. [PMID: 36631074 PMCID: PMC9851960 DOI: 10.2183/pjab.99.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 11/08/2022] [Indexed: 06/17/2023]
Abstract
Low molecular weight monocarboxylic acids (LMW monoacids, C1-C10) are the most abundant gaseous organic compound class in the atmosphere. Formic or acetic acid is the dominant volatile organic compound (VOC) in Earth's atmosphere. They can largely contribute to rainwater acidity, especially in the tropical forest, and react with alkaline metals, ammonia, and amines, contributing to new particle formation and secondary organic aerosol production. Gaseous and particulate LMW monoacids were abundantly reported in China. They can be directly emitted from fossil fuel combustion and biomass burring; however, the secondary formation is more important than primary emissions via the photochemical oxidation of anthropogenic and biogenic VOCs. In this paper, we review the distributions of LMW monoacids from urban, mountain, and marine sites as well as from rainwater and alpine snow samples and discuss their sources and formation mechanisms in the atmosphere. We also discuss their importance as cloud condensation nuclei (CCN) and provide future perspectives of LMW monoacids study in the warming world.
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Affiliation(s)
- Kimitaka KAWAMURA
- Chubu Institute for Advanced Studies, Chubu University, Kasugai, Japan
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Abstract
Both inorganic and organic complexation of metal cations in clouds or rainwater is essential to describe the global biogeochemical cycles of metals, because complexation can increase metal solubility and stabilize some of their oxidation states. Within a Project of the National Research Program in the Antarctica, atmospheric depositions were collected during the Antarctic summer 2017–2018 in eight sampling sites. The main ionic components occurring in water extracts of these atmospheric depositions were quantified, and a chemical model was applied, in order to identify the main species occurring in the samples. The speciation study showed that most cations were present as aquoions, except for Fe, which occurred predominantly in hydrolytic forms. The model allowed us to foresee the effect of an increase in the concentration levels of all the solution components, by simulating what could happen when the original particles act as cloud condensation nuclei. The role of inorganic anions as complexing agents becomes important when increasing total concentrations of all the solutes by a factor >100 compared to the water extracts, while the presence of organic acids acquires significance for samples having organic acid concentration higher than 10−5 mol L−1. Moreover, it was possible to pinpoint the formation constants that mostly affect the chemical system, and to gain insight into the behavior of metals in wet depositions, which is fundamental knowledge in atmospheric photochemistry studies and in the modeling of the biogeochemical cycles of metal cations.
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Rinaldi M, Paglione M, Decesari S, Harrison RM, Beddows DCS, Ovadnevaite J, Ceburnis D, O'Dowd CD, Simó R, Dall'Osto M. Contribution of Water-Soluble Organic Matter from Multiple Marine Geographic Eco-Regions to Aerosols around Antarctica. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:7807-7817. [PMID: 32501707 DOI: 10.1021/acs.est.0c00695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We present shipborne measurements of size-resolved concentrations of aerosol components across ocean waters next to the Antarctic Peninsula, South Orkney Islands, and South Georgia Island, evidencing aerosol features associated with distinct eco-regions. Nonmethanesulfonic acid Water-Soluble Organic Matter (WSOM) represented 6-8% and 11-22% of the aerosol PM1 mass originated in open ocean (OO) and sea ice (SI) regions, respectively. Other major components included sea salt (86-88% OO, 24-27% SI), non sea salt sulfate (3-4% OO, 35-40% SI), and MSA (1-2% OO, 11-12% SI). The chemical composition of WSOM encompasses secondary organic components with diverse behaviors: while alkylamine concentrations were higher in SI air masses, oxalic acid showed higher concentrations in the open ocean air. Our online single-particle mass spectrometry data exclude a widespread source from sea bird colonies, while the secondary production of oxalic acid and sulfur-containing organic species via cloud processing is suggested. We claim that the potential impact of the sympagic planktonic ecosystem on aerosol composition has been overlooked in past studies, and multiple eco-regions act as distinct aerosol sources around Antarctica.
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Affiliation(s)
- Matteo Rinaldi
- Institute of Atmospheric Sciences and Climate, National Research Council, Bologna 40129, Italy
| | - Marco Paglione
- Institute of Atmospheric Sciences and Climate, National Research Council, Bologna 40129, Italy
| | - Stefano Decesari
- Institute of Atmospheric Sciences and Climate, National Research Council, Bologna 40129, Italy
| | - Roy M Harrison
- National Centre for Atmospheric Science, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - David C S Beddows
- National Centre for Atmospheric Science, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Jurgita Ovadnevaite
- School of Physics and Centre for Climate and Air Pollution Studies, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland
| | - Darius Ceburnis
- School of Physics and Centre for Climate and Air Pollution Studies, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland
| | - Colin D O'Dowd
- School of Physics and Centre for Climate and Air Pollution Studies, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland
| | - Rafel Simó
- Institute of Marine Sciences, Passeig Marítim de la Barceloneta, 37-49, Barcelona E-08003, Spain
| | - Manuel Dall'Osto
- Institute of Marine Sciences, Passeig Marítim de la Barceloneta, 37-49, Barcelona E-08003, Spain
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Barbaro E, Padoan S, Kirchgeorg T, Zangrando R, Toscano G, Barbante C, Gambaro A. Particle size distribution of inorganic and organic ions in coastal and inland Antarctic aerosol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:2724-2733. [PMID: 27834051 DOI: 10.1007/s11356-016-8042-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/02/2016] [Indexed: 06/06/2023]
Abstract
The concentration and particle-size distribution of ionic species in Antarctic aerosol samples were determined to investigate their potential sources, chemical evolution, and transport. We analyzed aerosol samples collected at two different Antarctic sites: a coastal site near Victoria Land close to the Italian Research Base "Mario Zucchelli", and another site located on the Antarctic plateau, close to Italian-French Concordia Research Station. We investigated anionic compounds using ion-chromatography coupled to mass spectrometry, and cationic species through capillary ion chromatography with conductometry. Aerosol collected close to the coast was mainly characterized by sea salt species such as Na+, Mg2+, and SO42-. These species represented a percentage of 88% of the total sum of all detected ionic species in the aerosol samples from the coastal site. These species were mainly distributed in the coarse fraction, confirming the presence of primary aerosol near the ocean source. Aerosol collected over the Antarctic plateau was characterized by high acidity, with nss-SO42-, NO3-, and methanesulfonic acid as the most abundant species. These species were mainly distributed in the <0.49 μm fraction, and they had a behavior of a typical secondary aerosol, where several chemical and physical processes occurred.
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Affiliation(s)
- Elena Barbaro
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice-Mestre, Italy.
- Institute for the Dynamics of Environmental Processes CNR, Via Torino 155, 30172, Venice-Mestre, Italy.
| | - Sara Padoan
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice-Mestre, Italy
| | - Torben Kirchgeorg
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice-Mestre, Italy
| | - Roberta Zangrando
- Institute for the Dynamics of Environmental Processes CNR, Via Torino 155, 30172, Venice-Mestre, Italy
| | - Giuseppa Toscano
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice-Mestre, Italy
- Institute for the Dynamics of Environmental Processes CNR, Via Torino 155, 30172, Venice-Mestre, Italy
| | - Carlo Barbante
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice-Mestre, Italy
- Institute for the Dynamics of Environmental Processes CNR, Via Torino 155, 30172, Venice-Mestre, Italy
| | - Andrea Gambaro
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30172, Venice-Mestre, Italy
- Institute for the Dynamics of Environmental Processes CNR, Via Torino 155, 30172, Venice-Mestre, Italy
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Contribution of Arctic seabird-colony ammonia to atmospheric particles and cloud-albedo radiative effect. Nat Commun 2016; 7:13444. [PMID: 27845764 PMCID: PMC5116067 DOI: 10.1038/ncomms13444] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 10/04/2016] [Indexed: 11/23/2022] Open
Abstract
The Arctic region is vulnerable to climate change and able to affect global climate. The summertime Arctic atmosphere is pristine and strongly influenced by natural regional emissions, which have poorly understood climate impacts related to atmospheric particles and clouds. Here we show that ammonia from seabird-colony guano is a key factor contributing to bursts of newly formed particles, which are observed every summer in the near-surface atmosphere at Alert, Nunavut, Canada. Our chemical-transport model simulations indicate that the pan-Arctic seabird-influenced particles can grow by sulfuric acid and organic vapour condensation to diameters sufficiently large to promote pan-Arctic cloud-droplet formation in the clean Arctic summertime. We calculate that the resultant cooling tendencies could be large (about −0.5 W m−2 pan-Arctic-mean cooling), exceeding −1 W m−2 near the largest seabird colonies due to the effects of seabird-influenced particles on cloud albedo. These coupled ecological–chemical processes may be susceptible to Arctic warming and industrialization. The climatic impact of ammonia emissions from Arctic seabird-colony guano is poorly understood. Here, using observations and a chemical transport model, Croft et al. illustrate that guano-associated particles promote cloud-droplet formation, resulting in a pan-Arctic cooling tendency of approximately −0.5 W m−2.
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Hou S, Tong S, Zhang Y, Tan F, Guo Y, Ge M. Heterogeneous Uptake of Gas-Phase Acetic Acid on the Surface of α-Al 2 O 3 Particles: Temperature Effects. Chem Asian J 2016; 11:2749-2755. [PMID: 27251942 DOI: 10.1002/asia.201600402] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Indexed: 11/09/2022]
Abstract
Heterogeneous reactions are thought to play a significant role in the formation of haze, especially in wintertime, which suggests that temperature may affect the heterogeneous formation of organic aerosols. As the most-abundant carboxylic acid in the Earth's atmosphere, we chose acetic acid to study the effect of temperature on its heterogeneous reaction with α-Al2 O3 between 248 and 298 K. The products were characterized by in situ DRIFTS, which indicated that lowering the temperature slowed the formation of acetate, but promoted the formation of crystalline acetic acid. Moreover, low temperatures promoted a different reaction mechanism to that at room temperature. Owing to the formation of chain structures at low temperatures, crystalline acetic acid molecules covered the surface active sites on α-Al2 O3 , thereby inhibiting the formation of acetate. However, crystalline acetic acid reacted with α-Al2 O3 itself in a sequential manner. Furthermore, the reactive uptake coefficients, active energies, and acetic acid lifetimes at different temperatures were investigated.
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Affiliation(s)
- Siqi Hou
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shengrui Tong
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Ying Zhang
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Fang Tan
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yucong Guo
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Maofa Ge
- State Key Laboratory for Structural Chemistry of Unstable and Stable, Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
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Preunkert S, Ancellet G, Legrand M, Kukui A, Kerbrat M, Sarda-Estève R, Gros V, Jourdain B. Oxidant Production over Antarctic Land and its Export (OPALE) project: An overview of the 2010-2011 summer campaign. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd017145] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kukui A, Legrand M, Ancellet G, Gros V, Bekki S, Sarda-Estève R, Loisil R, Preunkert S. Measurements of OH and RO2radicals at the coastal Antarctic site of Dumont d'Urville (East Antarctica) in summer 2010-2011. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012jd017614] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Kerbrat M, Legrand M, Preunkert S, Gallée H, Kleffmann J. Nitrous acid at Concordia (inland site) and Dumont d'Urville (coastal site), East Antarctica. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd017149] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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