High Loadings of Water-Soluble Oxalic Acid and Related Compounds in PM2.5 Aerosols in Eastern Central India: Influence of Biomass Burning and Photochemical Processing

Deshmukh, Dhananjay K.; Kawamura, Kimitaka; Gupta, Tarun; Haque, Md. Mozammel; Zhang, Yanlin; Sing, Dharmendra K.; Tsai, Ying I.

doi:10.4209/aaqr.2019.10.0543

Cited by 18 publications

(9 citation statements)

References 119 publications

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“…Furthermore, laboratory simulation displays that the oxalate in the atmosphere is formed by the oxidation of precursors (glyoxal, etc. ; Aggarwal & Kawamura, 2008; Bikkina et al., 2014; Bikkina, Kuwarma, & Miyazaki, 2015; Boris et al., 2014; A. Carlton et al., 2006; A. G. Carlton et al., 2007; Charbouillot et al., 2012; Cheng et al., 2013; Christiansen et al., 2010; Deshmukh et al., 2018; Deshmukh et al., 2019; Eugene et al., 2016; Fisseha et al., 2006; Gowda & Kawamura, 2018; He et al., 2014; Ho et al., 2007; Ho et al., 2006; Hoque et al., 2017; Jung & Kawamura, 2011; Kawamura et al., 1995; Kawamura et al., 2010; Kawamura & Sakaguchi, 1999; Kundu, Kawamura, Andreae, et al., 2010; Kundu, Kawamura, & Lee, 2010; Kuo et al., 2011; Kuo et al., 2016; Legrand & De Angelis, 1995; Li et al., 2015; Lui et al., 2017; Narukawa et al., 2002; Nepotchatykh & Ariya, 2002; Perri et al., 2009; Pinxteren et al., 2009; Rinaldi et al., 2011; Schaefer et al., 2012; Sorathia et al., 2018; Souza et al., 1999; Turekian et al., 2003; Wang et al., 2012; Yang et al., 2013; Yang et al., 2008b; Y. ‐L.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Chemistry of Oxalate: Insight Into the Role of Relative Humidity and Aerosol Acidity From High‐Resolution Observation

et al. 2022

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Oxalate is the product of the precursors that can eventually be oxidized into oxalate by atmospheric oxidants (O3, etc.) and then redistributed to the particle phase, which has an impact on acid rain, and even the climate. However, we are still unclear about the influence of typical atmospheric oxidants in different phases with different RH and pH on oxalates. Here, we analyzed the effects of typical oxidants at RH ≤ 30%, 30% < RH ≤ 80% of the atmosphere on oxalates in atmospheric particulates based on high‐resolution online observation in Nanjing: the chemical processes of O3, OX (=O3 + NO2), and Cl− in different RH all have an important influence on the oxalate level, especially at 30% < RH ≤ 80% with high humidity have greater influence. NO2 only affects the particulate oxalate at RH ≤ 30%; HONO shows a greater effect at RH ≤ 30%, and 30% < RH ≤ 80% in winter and summer, the atmospheric oxidants that dust participates in have little effect. At the same time, we also found the difference between the influence of pH on atmospheric oxalate in winter and summer at RH > 80%, among which high pH is beneficial to the formation of oxalate in summer, while in winter has a greater influence on oxalate at RH ≤ 30%. These results help us to systematically understand the influence and distribution of oxalate in the atmosphere by RH, pH, and typical atmospheric oxidants.

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Section: Introductionmentioning

confidence: 99%

Atmospheric Chemistry of Oxalate: Insight Into the Role of Relative Humidity and Aerosol Acidity From High‐Resolution Observation

et al. 2022

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“…Fossil fuel combustion and BB primarily emit WSOC and OC. They are also secondarily produced by photochemical oxidation of volatile organic compounds in the atmosphere Huang et al, 2006;Deshmukh et al, 2019b). The coal combustion and vehicle exhaust can highly contribute to the levels of OC and WSOC in aerosols (Xu et al, 2020).…”

Section: Contribution Of Levoglucosan To Oc and Wsocmentioning

confidence: 99%

Measurement report: Diurnal and temporal variations of sugar compounds in suburban aerosols from the northern vicinity of Beijing, China: An influence of biogenic and anthropogenic sources

Verma¹,

Kawamura²,

Yang³

et al. 2020

Preprint

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Abstract. Sugar compounds (SCs) are major water-soluble constituents in atmospheric aerosols. In this study, we investigated their molecular compositions and abundances in the northern receptor site (Mangshan) of Beijing, China, to better understand the contributions from biogenic and anthropogenic sources using a gas chromatography–mass spectrometry technique. The sampling site receives anthropogenic air mass transported by southerly winds from Beijing, while relatively clean air mass transported by northerly winds from the forest areas. Day- and nighttime variations were analyzed for anhydrosugars, primary sugars, and sugar alcohols in autumn 2007. Concentrations of overall SCs ranged from 30.8 to 875 ng m−3 (avg. 325 ng m−3), showing diurnal variations with higher levels in daytime (351 ng m−3) than nighttime (276 ng m−3). Interestingly, biomass burning (BB) tracers were more abundant in nighttime than daytime, while other SCs showed different diurnal variations. Levoglucosan was found as a dominant sugar among the observed SCs, indicating an intense influence of BB over Mangshan. The levels of fungal tracers (arabitol and mannitol) were higher in daytime than nighttime, suggesting a significant transport of fungal spores and microbes to the receptor site by atmospheric transport from Beijing area. The plant emissions from Mangshan forest park significantly control the diurnal variations of glucose and fructose. The pollen tracer (sucrose) showed a clear diurnal variation, peaking in daytime due to higher ambient temperature and wind speed. We found that soil dust contributes to trehalose in daytime while microorganisms were responsible to its emissions in nighttime. The meteorological parameters (relative humidity, temperature and rainfall) significantly affect the concentrations and diurnal variations of SCs. Positive matrix factorization analysis suggested that local BB and bioaerosols transported from Beijing area were significant sources of SCs. (289)

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“…15,16 Small polar mono-and dicarboxylic acids are characterized by high volatility and water solubility, which allow them to partition between the gas-and particle-phases. 17−19 The compounds can be emitted directly into the atmosphere by anthropogenic sources, such as the combustion of fossil fuels, 20,21 biomass, 22,23 and waste in the form of plasticizers. 24 Mostly, they are formed secondary through the aqueous phase or combined multiphase degradation of organic precursors like isoprene and monoterpenes, 25,26 aromatic compounds, 27 alkenes, 28 and other higher molecular compounds.…”

Section: Introductionmentioning

confidence: 99%

Origins of Particulate Organic Acids during High-Altitude Transport over the North China Plain: Results from Mount Tai and a Flight Campaign in Winter 2019

Kwiezinski,

van Pinxteren,

Hoffmann

et al. 2024

ACS Earth Space Chem.

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Measurements of atmospheric organic particle composition at higher altitudes are scarce. The present study discusses concentrations and sources of PM and organic constituents based on winter-time observations at Mount Tai and aircraft measurements above the North China Plain (NCP). For PM 2.5 at the mountain site, concentrations up to 94 μg m −3 were measured. Correlations with surrounding cities indicated that, despite an observed boundary layer height below the sampling altitude (1534 m asl), polluted air masses from the plain ascended to the mountaintop, possibly due to orographic effects. Organic constituents showed mean concentrations ranging from ∼1 ng m −3 for terpene-derived acids and some branched or unsaturated dicarboxylic acids but could reach up to ∼100 ng m −3 for oxalic acid. A cluster heatmap revealed correlational relationships between the compounds that originate from sources, including traffic, combustion of coal, waste, and biomass as well as secondary formation. Average concentrations of most short-chain organic acids taken in the general upwind direction of Mount Tai at mean flight altitudes of ∼4000 m averaged 10−25% of the mountain ones outside haze periods, suggesting that chemical formation during high-altitude transport could have occurred. One flight sample showed high concentrations of up to 180 ng m −3 for oxalic acid, which is comparable to mountain haze periods, corroborating earlier observations of elevated pollution layers in the area even at such altitudes. CAPRAM multiphase modeling reproduced selected mountain concentrations of malonic and succinic acids reasonably well, while an initial underestimation of oxalic acid could be reduced by including salt formation and thereby enhanced phase partitioning. Overall, this study addresses observational gaps at high altitudes over the NCP and suggests processes and sources that might also be relevant in other regions.

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High Loadings of Water-Soluble Oxalic Acid and Related Compounds in PM2.5 Aerosols in Eastern Central India: Influence of Biomass Burning and Photochemical Processing

Cited by 18 publications

References 119 publications

Atmospheric Chemistry of Oxalate: Insight Into the Role of Relative Humidity and Aerosol Acidity From High‐Resolution Observation

Atmospheric Chemistry of Oxalate: Insight Into the Role of Relative Humidity and Aerosol Acidity From High‐Resolution Observation

Measurement report: Diurnal and temporal variations of sugar compounds in suburban aerosols from the northern vicinity of Beijing, China: An influence of biogenic and anthropogenic sources

Origins of Particulate Organic Acids during High-Altitude Transport over the North China Plain: Results from Mount Tai and a Flight Campaign in Winter 2019

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