Dicarboxylic acids, ketocarboxylic acids and glyoxal in the marine aerosols collected during a round-the-world cruise

Fu, Pingqing; Kawamura, Kimitaka; Usukura, Kouichi; Miura, Kazuhiko

doi:10.1016/j.marchem.2012.11.002

Cited by 133 publications

(126 citation statements)

References 81 publications

(100 reference statements)

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“…A recent study of marine aerosol from around the globe found that DCA contribute on average ∼ 15 % to total marine organic aerosol (OA) mass (Fu et al, 2013;Myriokefalitakis et al, 2011). DCA are commonly associated with aqueous processing of water soluble organics Tan et al, 2010) and hence readily affect aerosol-water interactions.…”

Section: Introductionmentioning

confidence: 99%

“…Oxalic acid (OxA) is typically the dominant DCA found in aerosol (Neusüss et al, 2000). It was shown to contribute more than 50 % on average of the total mass of marine DCA, and mineral dust is often enriched in OxA (Sullivan et al, 2009;Fu et al, 2013). High oxidation states and the ability to strongly interact with inorganic compounds (especially crustal/marine salts) make the effects of DCA on aerosol composition and physical properties unique and complex.…”

Section: Introductionmentioning

confidence: 99%

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Inorganic salts interact with oxalic acid in submicron particles to form material with low hygroscopicity and volatility

et al. 2014

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Abstract. Volatility and hygroscopicity are two key properties of organic aerosol components, and both are strongly related to chemical identity. While the hygroscopicities of pure salts, di-carboxylic acids (DCA), and DCA salts are known, the hygroscopicity of internal mixtures of these components, as they are typically found in the atmosphere, has not been fully characterized. Here we show that inorganicorganic component interactions typically not considered in atmospheric models can lead to very strongly bound metalorganic complexes and greatly affect aerosol volatility and hygroscopicity; in particular, the bi-dentate binding of DCA to soluble inorganic ions. We have studied the volatility of pure, dry organic salt particles and the hygroscopicity of internal mixtures of oxalic acid (OxA, the dominant DCA in the atmosphere) and a number of salts, both mono-and divalent. The formation of very low volatility organic salts was confirmed, with minimal evaporation of oxalate salt particles below 75 • C. Dramatic increases in the cloud condensation nuclei (CCN) activation diameter for particles with di-valent salts (e.g., CaCl 2 ) and relatively small particle volume fractions of OxA indicate that standard volume additivity rules for hygroscopicity do not apply. Thus small organic compounds with high O : C ratios are capable of forming lowvolatility and very low hygroscopicity particles. Given current knowledge of the formation mechanisms of OxA and M-Ox salts, surface enrichment of insoluble M-Ox salts is expected. The resulting formation of an insoluble coating of metal-oxalate salts can explain low-particle hygroscopicities. The formation of particles with a hard coating could offer an alternative explanation for observations of glass-like particles without the need for a phase transition.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inorganic salts interact with oxalic acid in submicron particles to form material with low hygroscopicity and volatility

et al. 2014

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“…The C3/ C4 ratios in the marine aerosols collected at low-to mid-latitudes in the Northern Hemisphere vary between 0.9 and 5.8 with an average of 2.3, which were about three times higher than those found in urban aerosol (Fu et al, 2013). These values suggested that C 3 -malonic acid is photochemically produced during long range transport from continents to the marine atmosphere (Fu et al, 2013). The mean C 3 /C 4 ratio calculated in the 2014/2015 Antarctic samples ranged between 0.8 and 2.3 with an average value of 1.45, suggesting that aerosol contained these species underwent long range transport processes, where photochemical degradation occurred.…”

Section: Carboxylic Acids (Ca) In Pm 10mentioning

confidence: 76%

“…C 2 -oxalic acid is an end-product of various oxidation/decomposition reactions in the atmosphere (Kawamura and Sakaguchi, 1999), whereas the presence of long chain CA suggests incomplete photochemical degradation of alkenes in the atmosphere. The C 3 -malonic/C 4 -succinic ratio can be used as an indicator of enhanced photochemical production of diacids (Kawamura and Ikushima, 1993), as C 4 -succinic acid can be degraded to C 3 -malonic acid by decarboxylation reactions activated by OH radicals (Fu et al, 2013). The C3/ C4 ratios in the marine aerosols collected at low-to mid-latitudes in the Northern Hemisphere vary between 0.9 and 5.8 with an average of 2.3, which were about three times higher than those found in urban aerosol (Fu et al, 2013).…”

Section: Carboxylic Acids (Ca) In Pm 10mentioning

confidence: 99%

“…The C 3 -malonic/C 4 -succinic ratio can be used as an indicator of enhanced photochemical production of diacids (Kawamura and Ikushima, 1993), as C 4 -succinic acid can be degraded to C 3 -malonic acid by decarboxylation reactions activated by OH radicals (Fu et al, 2013). The C3/ C4 ratios in the marine aerosols collected at low-to mid-latitudes in the Northern Hemisphere vary between 0.9 and 5.8 with an average of 2.3, which were about three times higher than those found in urban aerosol (Fu et al, 2013). These values suggested that C 3 -malonic acid is photochemically produced during long range transport from continents to the marine atmosphere (Fu et al, 2013).…”

Section: Carboxylic Acids (Ca) In Pm 10mentioning

confidence: 99%

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Aerosol and snow transfer processes: An investigation on the behavior of water-soluble organic compounds and ionic species

et al. 2017

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h i g h l i g h t sThe air-snow transfer processes were evaluated using water soluble compounds. This is the first study about amino acids and sugar concentration in surface snow. Water soluble organic fractions of Antarctic aerosol and snow were investigated. a r t i c l e i n f o b s t r a c tThe concentrations of water-soluble compounds (ions, carboxylic acids, amino acids, sugars, phenolic compounds) in aerosol and snow have been determined at the coastal Italian base "Mario Zucchelli" (Antarctica) during the 2014e2015 austral summer. The main aim of this research was to investigate the air-snow transfer processes of a number of classes of chemical compounds and investigate their potential as tracers for specific sources.The composition and particle size distribution of Antarctic aerosol was measured, and water-soluble compounds accounted for 66% of the PM 10 total mass concentration. The major ions Na þ , Mg 2þ , Cl À and SO 4 2À made up 99% of the total water soluble compound concentration indicating that sea spray input was the main source of aerosol. These ionic species were found mainly in the coarse fraction of the aerosol resulting in enhanced deposition, as reflected by the snow composition. Biogenic sources were identified using chemical markers such as carboxylic acids, amino acids, sugars and phenolic compounds. This study describes the first characterization of amino acids and sugar concentrations in surface snow. High concentrations of amino acids were found after a snowfall event, their presence is probably due to the degradation of biological material scavenged during the snow event. Alcohol sugars increased in concentration after the snow event, suggesting a deposition of primary biological particles, such as airborne fungal spores.

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High abundances of oxalic, azelaic, and glyoxylic acids and methylglyoxal in the open ocean with high biological activity: Implication for secondary OA formation from isoprene

Bikkina

Kawamura

Miyazaki

et al. 2014

Geophysical Research Letters

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Atmospheric dicarboxylic acids (DCA) are a ubiquitous water-soluble component of secondary organic aerosols (SOA), which can act as cloud condensation nuclei (CCN), affecting the Earth's climate. Despite the high abundances of oxalic acid and related compounds in the marine aerosols, there is no consensus on what controls their distributions over the open ocean. Marine biological productivity could play a role in the production of DCA, but there is no substantial evidence to support this hypothesis. Here we present latitudinal distributions of DCA, oxoacids and α-dicarbonyls in the marine aerosols from the remote Pacific. Their concentrations were found several times higher in more biologically influenced aerosols (MBA) than less biologically influenced aerosols. We propose isoprene and unsaturated fatty acids as sources of DCA as inferred from significantly higher abundances of isoprene-SOA tracers and azelaic acid in MBA. These results have implications toward the reassessment of climate forcing feedbacks of marine-derived SOA.

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Dicarboxylic acids, ketocarboxylic acids and glyoxal in the marine aerosols collected during a round-the-world cruise

Cited by 133 publications

References 81 publications

Inorganic salts interact with oxalic acid in submicron particles to form material with low hygroscopicity and volatility

Inorganic salts interact with oxalic acid in submicron particles to form material with low hygroscopicity and volatility

Aerosol and snow transfer processes: An investigation on the behavior of water-soluble organic compounds and ionic species

High abundances of oxalic, azelaic, and glyoxylic acids and methylglyoxal in the open ocean with high biological activity: Implication for secondary OA formation from isoprene

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