Secondary organic aerosol formation from the photo-oxidation of benzene

Borrás, Esther; Tortajada-Genaro, Luis Antonio

doi:10.1016/j.atmosenv.2011.11.020

Cited by 100 publications

(88 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, ammonium ion was found to react with α-dicarbonyl compounds, such as glyoxal and methyl glyoxal to form imidazole products in previous experiments (Nozière et al 2009;Yu et al 2011;Kampf et al 2012). Smog chamber studies have indicated that glyoxal is the major aldehyde products formed from OH-initiated oxidation of benzene (Martín-Reviejo and Wirtz 2005;Borrása and Tortajada-Genarob 2012;Wang et al 2013), the generated glyxoal could condense on the existing dry (NH 4 ) 2 SO 4 seed aerosol. As shown in Fig.…”

Section: The Influence Of Low Concentration Of Dry (Nh 4 ) 2 So 4 On mentioning

confidence: 92%

Mass spectrometric study of aged benzene secondary organic aerosol in the presence of dry ammonium sulfate

et al. 2016

View full text Add to dashboard Cite

Inorganic seed particles have relatively large surface area, and play an important role in the formation and aging of secondary organic aerosol (SOA). The effects of dry (NH 4 ) 2 SO 4 which is the most commonly found in urban atmosphere on the aged benzene SOA were qualitatively studied utilizing aerosol laser time-of-flight mass spectrometer (ALTOFMS) coupled with Fuzzy C-Means (FCM) clustering algorithm in this study. Experimental results indicated that nitrophenol, oxocarboxylic acid, epoxide products are the predominant components in the aged benzene SOA in the presence of low concentration (about 10 μg m −3 ) of dry (NH 4 ) 2 SO 4 . These aged products are the same as the previously obtained aged benzene SOA without (NH 4 ) 2 SO 4 seed aerosol, indicating that low concentration of dry (NH 4 ) 2 SO 4 acts just as the nucleation or condensation center of the SOA, and do not affect the chemical composition of SOA. However, 1 H-imidazole, 1 H-imidazole-2-carbaldehyde, hydrated 1 H-imidazole-2-carbaldehyde, 2,2′-biimidazole, hydrated N-glyoxal substituted 1 H-imidazole, N-glyoxal substituted hydrated 1 H-imidazole-2-carbaldehyde, hydrated mono glyoxal substituted hydrated 1 H-imidazole-2-carboxaldehyde, mono glyoxal substituted 2,2-biimidazole and hydrated glyoxal dimer substituted imidazole which are formed from ammonium ion reaction with glyoxal are the major particulate products in the aged benzene SOA in the presence of high concentration J Atmos Chem (about 100 μg m −3 ) of dry (NH 4 ) 2 SO 4 . The retention of water on the dry (NH 4 ) 2 SO 4 particles creates ammonium ion, which can promote the formation of high-molecular-weight (HMW) products through multiphase reactions such as hydration and polymerization of aldehydes form from OH-initiated oxidation of benzene.

show abstract

Section: The Influence Of Low Concentration Of Dry (Nh 4 ) 2 So 4 On mentioning

confidence: 92%

Mass spectrometric study of aged benzene secondary organic aerosol in the presence of dry ammonium sulfate

et al. 2016

View full text Add to dashboard Cite

show abstract

“…This nitro-aromatic compound has been suggested as a tracer for both BB [39] and the photooxidation of benzene. [30] It was found to exhibit maximum concentrations in PM3, PM .3 and total suspended particles size fractions at Mainz, Germany, in summer. [40] Other abundant aromatic compounds were m/z 165 compounds with RTs 21.1 and 22.1 min, which were identified as tere-and ortho-phthalic acid.…”

Section: Contribution Of Hulis-c To Wsocmentioning

confidence: 99%

“…toluene, [28] which accounts for ,6 % of the observed non-methane hydrocarbons, making it the most abundant aromatic VOC in urban air. [29] In addition, nitrocatechols should be considered as target SOA tracers as they are formed through the same formation mechanism from benzene, [30] which is also an abundant anthropogenic VOC in urban air. [29] Experimental Samples and sample preparation The rural-continental background aerosol samples were collected at K-puszta (latitude 46858.3 0 N, longitude 19832.5 0 E, altitude 125 m above sea level) on the Great Hungarian Plain, ,80 km south-east of Budapest and 15 km north-west of the nearest town Kecskem et.…”

Section: Introductionmentioning

confidence: 99%

Chemical characterisation of humic-like substances from urban, rural and tropical biomass burning environments using liquid chromatography with UV/vis photodiode array detection and electrospray ionisation mass spectrometry

et al. 2012

View full text Add to dashboard Cite

Environmental context. One of the most important classes of water-soluble organic compounds in continental fine and tropical biomass burning aerosol is humic-like substances (HULIS), which contain components with strong polar, acidic and chromophoric properties. We focus on the chemical characterisation of HULIS and provide evidence that nitro-aromatic catecholic compounds are among the major species of HULIS. This indicates that volatile aromatic hydrocarbons emitted during biomass burning are important gas-phase precursors for HULIS.Abstract. Humic-like substances (HULIS) are ubiquitously present in the troposphere and make up a major fraction of continental fine-sized water-soluble organic compounds. They are regarded as material with strong polar, acidic and chromophoric properties; however, structural information at the individual component level is rather limited. In the present study, we have characterised HULIS from different locations using liquid chromatography coupled to photodiode array detection and negative ion electrospray ionisation mass spectrometry. Aerosol samples with particles less than 2.5 mm in diameter (PM 2.5

show abstract

“…[5][6][7] Toluene portrays the simplest representative of an alkyl-substituted benzene molecule with the methyl group enhancing the reactivity toward radical and electrophile aromatic substitution compared to benzene. [8] It is further considered as a crucial building block to form methyl-substituted polycyclic aromatic hydrocarbons (PAHs) such as 1-and 2-methylnaphthalene.…”

mentioning

confidence: 99%

A Combined Experimental and Theoretical Study on the Gas‐Phase Synthesis of Toluene under Single Collision Conditions

et al. 2013

View full text Add to dashboard Cite

Secondary organic aerosol formation from the photo-oxidation of benzene

Cited by 100 publications

References 23 publications

Mass spectrometric study of aged benzene secondary organic aerosol in the presence of dry ammonium sulfate

Mass spectrometric study of aged benzene secondary organic aerosol in the presence of dry ammonium sulfate

Chemical characterisation of humic-like substances from urban, rural and tropical biomass burning environments using liquid chromatography with UV/vis photodiode array detection and electrospray ionisation mass spectrometry

A Combined Experimental and Theoretical Study on the Gas‐Phase Synthesis of Toluene under Single Collision Conditions

Contact Info

Product

Resources

About