Organic aerosol formation and aging processes in Beijing constrained by size-resolved measurements of radiocarbon and stable isotopic 13C

Ni, Haiyan; Huang, Ru‐Jin; Yao, Peng; Cosijn, Max M.; Kairys, Norbertas; Zhong, Haobin; Dusek, Ulrike

doi:10.1016/j.envint.2021.106890

Cited by 10 publications

(19 citation statements)

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“…The 13 C and 34 S isotope peaks with exact Δm values of 1.003354 and 1.995796 Da, respectively, were picked up (Figure S1). Formulas that contain a 13 C or 34 S isotope and do not correspond to the parent formulas of 12 S y−1 / 32 S y ) was calculated, which should match the ratio of the natural abundances of the elements' corresponding isotopes within a normal error of 30%, allowing unambiguous identification of the proper molecular formulas. 30 ■ RESULTS AND DISCUSSION 13 C Isotopes of Organosulfates.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

“…7,8 However, due to the number of probable matches increasing with mass, 9,10 it is difficult to accurately determine many formulas of OSs. Stable 13 C or 34 S isotopes can verify the mass peaks of OSs. 11 However, the isotopic peaks have previously rarely been employed.…”

Section: ■ Introductionmentioning

confidence: 99%

“…11 However, the isotopic peaks have previously rarely been employed. 8,12−14 Moreover, the detection of 13 C and 34 S isotopic compositions of OSs can help in the investigation of their formation and the global sulfur cycle. Weber et al 15 validated the efficiency of the FT-ICR MS approach by analyzing the composition of 13 C-rich extracts.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Nevertheless, the 34 S isotopes of organosulfur compounds have not been explored due to the limitations of separation and analytic techniques. The δ 34 S values of a few specific organosulfur compounds, for instance, dibenzothiophenes and benzothiophenes in petroleum 23 and sediments 24 and methanesulfonic acid 25,26 To the best of our knowledge, the 13 C and 34 S isotopes of OSs in atmospheric aerosols are not well-known at the molecular level. In particular, knowledge of isotope values (δ 34 S) of OSs in ambient aerosols is scarce.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Here, we seek to S4. 54 identify a series of 13 C and 34 S isotopes of OSs and to estimate their corresponding δ 13 C and δ 34 S values at the molecular level in urban aerosols using FT-ICR MS. The 34 S isotopes of aliphatic and non-aliphatic OSs were separated to investigate their precursors and potential formation pathway.…”

Section: ■ Introductionmentioning

confidence: 99%

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Deciphering ¹³C and ³⁴S Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry

Xie

Dai

et al. 2022

Environ. Sci. Technol. Lett.

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Organosulfates (OSs) are some of the important components of secondary organic aerosols in ambient air. However, little is known about the stable carbon and sulfur isotopic compositions of OSs. Here, we identified the isotopic pair 12 C n / 13 C 12 C n−1 and 32 S n / 34 S 32 S n−1 formulas in urban aerosols using ultra-highresolution Fourier transform ion cyclotron resonance mass spectrometry. Family series of 694−1649 13 C 32 S OSs and 40−144 12 C 34 S OSs with completely coherent carbon chains were detected, accounting for 37−52% and 2.2−4.5%, respectively, of the observed 12 C 32 S OSs. OSs with detected isotopic peaks have relatively high levels of saturation and high volatilities, especially those containing 34 S isotopes with H/C > 1.5. Moreover, the δ 13 C and δ 34 S values of OSs were estimated with mean values ranging from −22‰ to −0.87‰ and from −1‰ to 26‰, respectively. Notably, unsaturated OSs might be more enriched with 34 S than aliphatic ones. Furthermore, all detected 12 C 34 S OSs are in the low-O/C corridor with a low carbon oxidation state, which are mostly volatile and low-volatile organic compounds with high volatility, implying that they are generated by gasphase oxidation. These findings represent a first step toward identifying the individual molecules of 13 C and 34 S isotopic OSs in atmospheric aerosols.

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Section: ■ Materials and Methodsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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Deciphering ¹³C and ³⁴S Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry

Xie

Dai

et al. 2022

Environ. Sci. Technol. Lett.

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Characterisation of urban aerosol size distribution by radiocarbon and PIXE analyses in a middle-European urban environment for source identification: a pilot study

Angyal,

Szoboszlai,

Major

et al. 2024

Environ Sci Pollut Res

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This study, conducted in Debrecen, Hungary, aimed to analyse atmospheric particulate matter (APM or PM) through radiocarbon and PIXE analyses during the winter smog (23–25 January) and spring (15–18 May) seasons. The information presented in this pilot study aims to provide insight into the importance of utilising detailed characteristics of the mass size distributions of fossil carbon (ff) and contemporary carbon (fC) content. Additionally, it seeks to compare these characteristics with the size distributions of various elements to enable even more accurate PM source identification. In winter, APM concentrations were 86.27 μg/m3 (total), 17.07 μg/m3 (fC) and 10.4 μg/m3 (ff). In spring, these values changed to 29.5 μg/m3, 2.64 μg/m3 and 7.01 μg/m3, respectively. Notably, differences in mass size distribution patterns were observed between the two seasons, suggesting varied sources for contemporary carbon. Biomass burning emerged as a crucial source during the smog period, supported by similar MMAD (Mass Median Aerodynamic Diameter) values and a strong correlation (r = 0.95, p < 0.01) between potassium and fC. In spring, a significant change in the concentration and distribution of fC occurred, with a broad, coarse mode and a less prominent accumulation mode. Ff was found to have similar distributions as PM, with nearly the same MMADs, during both periods. Finally, a comprehensive comparison of modal characteristics identified specific sources for the various components, including biomass burning, vehicle exhaust, coal and oil combustion, vehicle non-exhaust, road dust, tyre abrasion, mineral dust and biogenic emission. This study showcases how using radiocarbon and PIXE analysis in size distribution data can enhance our understanding of the sources of PM and their effects on different size fractions of PM.

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Influences of meteorology on emission sources and physicochemical properties of particulate matter in Seoul, Korea during the heating period

Jeon¹,

Chen

Kim

2023

Atmospheric Environment

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Organic aerosol formation and aging processes in Beijing constrained by size-resolved measurements of radiocarbon and stable isotopic 13C

Cited by 10 publications

References 64 publications

Deciphering ¹³C and ³⁴S Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry

Deciphering ¹³C and ³⁴S Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry

Characterisation of urban aerosol size distribution by radiocarbon and PIXE analyses in a middle-European urban environment for source identification: a pilot study

Influences of meteorology on emission sources and physicochemical properties of particulate matter in Seoul, Korea during the heating period

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Organic aerosol formation and aging processes in Beijing constrained by size-resolved measurements of radiocarbon and stable isotopic 13C

Cited by 10 publications

References 64 publications

Deciphering 13C and 34S Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry

Deciphering 13C and 34S Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry

Characterisation of urban aerosol size distribution by radiocarbon and PIXE analyses in a middle-European urban environment for source identification: a pilot study

Influences of meteorology on emission sources and physicochemical properties of particulate matter in Seoul, Korea during the heating period

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Deciphering ¹³C and ³⁴S Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry

Deciphering ¹³C and ³⁴S Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry