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Baptista A, Gibilisco RG, Vega-Teijido M, Ventura ON, Teruel MA. Atmospheric oxidation of furanones by •OH and •Cl radicals: In situ FTIR rate coefficient determinations, SAR and theoretical studies. CHEMOSPHERE 2023; 338:139500. [PMID: 37480954 DOI: 10.1016/j.chemosphere.2023.139500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 07/24/2023]
Abstract
Gas-phase kinetics of the overall reactions of •OH and •Cl radicals with dihydrofuran-3(2H)-one (oxolan-3-one) and dihydro-2-methyl-3(2H)-furanone (2MTHF-3-one) were studied at 298 K and atmospheric pressure. The rate coefficients were determined using the relative method in a 480 L multipass glass reactor coupled to an FT-IR detection system. The rate coefficients found for oxolan 3-one and 2MTHF-one with •OH radicals (k1 and k2) and with •Cl atoms (k3 and k4) at 298 K and atmospheric pressure (in cm3 molecule-1 s-1) were: k1 = (1.86 ± 0.29) × 10-11, k2 = (2.64 ± 0.47) × 10-11, k3= (1.15 ± 0.28) × 10 -10, and k4 = (1.33 ± 0.32) × 10-10, respectively. Reactivity trends were developed by comparison with other similar structures and Fukui indices employed to determine the reactivity of different sites on the ring. The singularity of the reaction with •OH was assessed by computational studies which showed the formation of several stable hydrogen bonded complexes, explaining the difference with the reaction with the •Cl atom. SAR estimations of the rate coefficients were calculated and compared to the experimental values.
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Affiliation(s)
- Andrea Baptista
- (L.U.Q.C.A) Laboratorio Universitario de Química y Contaminación del Aire, Instituto de Investigaciones en Fisicoquímica de Córdoba (I.N.F.I.Q.C.), Dpto. De Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Rodrigo G Gibilisco
- Institute for Atmospheric and Environmental Research, University of Wuppertal, DE-42097 ,Wuppertal, Germany
| | - Mauricio Vega-Teijido
- Computational Chemistry and Biology Group (CCBSG), Facultad de Química, UdelaR, Isidoro de María 1614, Montevideo, Uruguay
| | - Oscar N Ventura
- Computational Chemistry and Biology Group (CCBSG), Facultad de Química, UdelaR, Isidoro de María 1614, Montevideo, Uruguay
| | - Mariano A Teruel
- (L.U.Q.C.A) Laboratorio Universitario de Química y Contaminación del Aire, Instituto de Investigaciones en Fisicoquímica de Córdoba (I.N.F.I.Q.C.), Dpto. De Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina.
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Shen M, Qi W, Guo X, Dai W, Wang Q, Liu Y, Zhang Y, Cao Y, Chen Y, Li L, Liu H, Cao J, Li J. Influence of vertical transport on chemical evolution of dicarboxylic acids and related secondary organic aerosol from surface emission to the top of Mount Hua, Northwest China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159892. [PMID: 36336041 DOI: 10.1016/j.scitotenv.2022.159892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/29/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Dicarboxylic acids are strong hygroscopic organic compounds in the atmosphere, and thus significantly affect the cloud formation process and radiative forcing on a regional scale. So far, the evolution of dicarboxylic acids during vertical transport from the surface to the mountaintop has yet to be explicitly understood. In this study, the molecular distribution and stable carbon isotopic (δ13C) compositions of dicarboxylic acids and related organic compounds (DCRCs) in PM2.5 were measured simultaneously at the top (c. 2060 m a.s.l.) and foot (c. 400 m a.s.l.) of Mount (Mt.) Hua during the summer of 2020. Due to the strong anthropogenic emissions at ground level, the concentrations of DCRCs at foot of Mt. Hua were generally higher than those at the top. Oxalic acid (C2) was the predominant diacid in both sites, whose concentrations at foot and top of Mt. Hua were 87-852 and 40-398 ng m-3, respectively. Ratios of adipic acid to azelaic acid (C6/C9), phthalic aid to azelaic acid (pH/C9), glyoxal to methylglyoxal (Gly/mGly), and lower δ13C values (-21.0 ± 2.3 ‰ and - 21.9 ± 2.7 ‰) of C2 indicated that the contributions of anthropogenic sources to DCRCs in PM2.5 in the mountain region are more significant than biogenic sources. Aerosols from the foot of Mt. Hua could affect the atmosphere on the top of the mountain via vertical transport under the influence of daytime valley wind, even though the altitude of Mt. Hua is beyond the boundary layer most of time. The value δ13C of C2 is linearly correlated with C2/mGly, C2/pyruvic acid (Pyr), C2/glyoxylic acid (ωC2) at the top of the mountain, and C2/Gly, C2/ωC2 at the foot of the mountain, indicating that the formation pathway of C2 is mGly-Pyr-ωC2-C2 at the top of Mt. Hua and Gly-ωC2-C2 at the foot of Mt. Hua.
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Affiliation(s)
- Minxia Shen
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China; University of Chinese Academy of Sciences, Beijing, China
| | - Weining Qi
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xiao Guo
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Wenting Dai
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Qiyuan Wang
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Yali Liu
- Xi'an Institute for Innovative Earth Environment Research, Xi'an 710061, China
| | - Yifan Zhang
- Xi'an Institute for Innovative Earth Environment Research, Xi'an 710061, China
| | - Yue Cao
- Xi'an Institute for Innovative Earth Environment Research, Xi'an 710061, China
| | - Yukun Chen
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China; State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lu Li
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Haijiao Liu
- Xi'an Institute for Innovative Earth Environment Research, Xi'an 710061, China
| | - Junji Cao
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China.
| | - Jianjun Li
- State Key Laboratory of Loess and Quaternary Geology, Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China; National Observation and Research Station of Regional Ecological Environment Change and Comprehensive Management in the Guanzhong Plain, Shaanxi, China.
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Tang T, Cheng Z, Xu B, Zhang B, Li J, Zhang W, Wang K, Zhang G. Source Diversity of Intermediate Volatility n-Alkanes Revealed by Compound-Specific δ 13C-δD Isotopes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:14262-14271. [PMID: 36206450 DOI: 10.1021/acs.est.2c02156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Intermediate volatility organic compounds (IVOCs) are important precursors of secondary organic aerosols, and their sources remain poorly defined. N-alkanes represent a considerable portion of IVOCs in atmosphere, which can be well identified and quantified out of the complex IVOC pool. To investigate the potential source diversity of intermediate volatility n-alkanes (IVnAs, nC12-nC20), we apportioned the sources of IVnAs in the atmosphere of four North China cities, based on their compound-specific δ13C-δD isotope compositions and Bayesian model analysis. The concentration level of IVnAs reached 1195 ± 594 ng/m3. The δ13C values of IVnAs ranged -32.3 to -27.6‰ and δD values -161 to -90‰. The δD values showed a general increasing trend toward higher carbon number alkanes, albeit a zigzag odd-even prevalence. Bayesian MixSIAR model using δ13C and δD compositions revealed that the source patterns of individual IVnAs were inconsistent; the relative contributions of liquid fossil combustion were higher for lighter IVnAs (e.g., nC12-nC13), while those of coal combustion were higher for heavier IVnAs (e.g., nC17-nC20). This result agrees with principal component analysis of the dual isotope data. Overall, coal combustion, liquid fossil fuel combustion, and biomass burning contributed about 47.8 ± 0.1, 35.7 ± 4.0, and 16.3 ± 4.2% to the total IVnAs, respectively, highlighting the importance of coal combustion as an IVnA source in North China. Our study demonstrates that the dual-isotope approach is a powerful tool for source apportionment of atmospheric IVOCs.
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Affiliation(s)
- Tiangang Tang
- State Key Laboratory of Organic Geochemistry, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, P. R. China
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha410125, P.R. China
| | - Zhineng Cheng
- State Key Laboratory of Organic Geochemistry, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, P. R. China
- CAS Centre for Excellence in Deep Earth Science, Guangzhou, 510640, P.R. China
| | - Buqing Xu
- State Key Laboratory of Organic Geochemistry, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, P. R. China
- CAS Centre for Excellence in Deep Earth Science, Guangzhou, 510640, P.R. China
| | - Bolong Zhang
- State Key Laboratory of Organic Geochemistry, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, P. R. China
- CAS Centre for Excellence in Deep Earth Science, Guangzhou, 510640, P.R. China
| | - Jun Li
- State Key Laboratory of Organic Geochemistry, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, P. R. China
- CAS Centre for Excellence in Deep Earth Science, Guangzhou, 510640, P.R. China
| | - Wei Zhang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha410125, P.R. China
| | - Kelin Wang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha410125, P.R. China
| | - Gan Zhang
- State Key Laboratory of Organic Geochemistry, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, P. R. China
- CAS Centre for Excellence in Deep Earth Science, Guangzhou, 510640, P.R. China
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Bikkina P, Bikkina S, Kawamura K, Sarma VVSS, Deshmukh DK. Unraveling the sources of atmospheric organic aerosols over the Arabian Sea: Insights from the stable carbon and nitrogen isotopic composition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 827:154260. [PMID: 35248629 DOI: 10.1016/j.scitotenv.2022.154260] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
The isotopic composition of stable carbon (δ13C) and nitrogen (δ15N) in marine aerosols influenced by the continental outflows are useful proxies for understanding the aging and secondary formation processes. Every winter, the haze pollutants transported from South Asia significantly affect the chemical composition of marine atmospheric boundary layer of the Arabian Sea. Here, we assessed the δ13C of total carbon (TC) and δ15N of total nitrogen (TN) in marine aerosols collected over the Arabian Sea during a winter cruise (6-24 December 2018). TC (2.1-13.4 μg m-3) is strongly correlated with TN (0.9-5.0 μg m-3), likely because of their common source-emissions, biomass burning and fossil-fuel combustion in the Indo-Gangetic Plain and South Asia (corroborated by backward-air mass trajectories and satellite fire counts). Besides, the linear relationship between the mass ratios of water-soluble organic carbon (WSOC) to TC (0.04-0.65) and δ13CTC (-25.1‰ to -22.9‰) underscores the importance of aging process. This means oxidation of organic aerosols during transport not only influences the WSOC levels but also affects their δ13CTC. Likewise, the prevalent inverse linear relationship between the equivalent mass ratio of (NH4+/non-sea-salt- or nss-SO42-) and δ15NTN (+15.3‰ to +25.1‰) emphasizes the overall significance of neutralization reactions between major acidic ([nss-SO42-] ≫ [NO3-]) and alkaline species (NH4+) in aerosols. Higher δ15NTN values in winter than the spring inter-monsoon clearly emphasizes the significance of the anthropogenic combustion sources (i.e., biomass burning) in the South Asian outflow. A comparison of δ13CTC and δ15NTN with the source emissions revealed that crop-residue burning emissions followed by the coal fired power plants mostly dictate the atmospheric abundance of organic aerosols in the wider South Asian outflow.
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Affiliation(s)
- Poonam Bikkina
- CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India.
| | - Srinivas Bikkina
- CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India; Chubu Institute of Advanced Sciences, Chubu University, Kasugai-shi, Aichi 4878501, Japan
| | - Kimitaka Kawamura
- Chubu Institute of Advanced Sciences, Chubu University, Kasugai-shi, Aichi 4878501, Japan
| | - V V S S Sarma
- CSIR-National Institute of Oceanography, Regional Cente Waltair, Visakhapatnam 530017, India
| | - Dhananjay K Deshmukh
- Chubu Institute of Advanced Sciences, Chubu University, Kasugai-shi, Aichi 4878501, Japan
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Cheramangalath Balan R, Rajakumar B. Cl-Atom-Initiated Atmospheric Degradation of Saturated Cyclic Hydrocarbons: Kinetic and Mechanistic Investigation. J Phys Chem A 2019; 123:7361-7373. [DOI: 10.1021/acs.jpca.9b02225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - B. Rajakumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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6
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Samir B, Kalalian C, Roth E, Salghi R, Chakir A. Gas-phase UV absorption spectra and OH-oxidation kinetics of 1 H-1,2,3-triazole and pyrazole. RSC Adv 2019; 9:27361-27368. [PMID: 35529230 PMCID: PMC9070650 DOI: 10.1039/c9ra04235k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/30/2019] [Indexed: 11/30/2022] Open
Abstract
In this work, we report the gas phase UV absorption spectra and the kinetics of the OH-oxidation of 1H-1,2,3-triazole and pyrazole. UV spectra were determined between 200 and 250 nm, at 350 ± 2 K and at pressures between 0.09 and 0.3 Torr. The reported maximal UV absorption cross sections are (cm2 per molecule): σ206 nm, 1H–1H-1,2,3-triazole = 2.04 × 10−18 and σ203 nm, pyrazole = 5.44 × 10−18. The very low absorption capacity of these compounds beyond 240 nm indicates that their atmospheric photodissociation is negligible. The OH-oxidation of these species was performed in an atmospheric simulation chamber coupled to an FTIR spectrometer and to a GC/MS over the temperature range 298–357 K and at atmospheric pressure. Experiments were conducted in relative mode using benzaldehyde, trans-2-hexenal and heptane as references. The obtained rate constants at 298 K were (×10−11 cm3 per molecule per s): k(OH + 1H-1,2,3-triazole) = 2.16 ± 0.41; k(OH + pyrazole) = 2.94 ± 0.42. These results were compared to those available in the literature and discussed in terms of structure-reactivity and temperature dependency. Their tropospheric lifetimes with respect to reaction with OH radicals were then estimated. In this work, we report the gas phase UV absorption spectra and the kinetics of the OH-oxidation of 1H-1,2,3-triazole and pyrazole.![]()
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Affiliation(s)
- Brahim Samir
- Groupe de Spectrométrie Moléculaire et Atmosphérique GSMA
- UMR CNRS 7331
- Université de Reims
- 51687 Reims Cedex 2
- France
| | - Carmen Kalalian
- Groupe de Spectrométrie Moléculaire et Atmosphérique GSMA
- UMR CNRS 7331
- Université de Reims
- 51687 Reims Cedex 2
- France
| | - Estelle Roth
- Groupe de Spectrométrie Moléculaire et Atmosphérique GSMA
- UMR CNRS 7331
- Université de Reims
- 51687 Reims Cedex 2
- France
| | - Rachid Salghi
- Laboratory of Environmental Engineering and Biotechnology
- ENSA
- University Ibn Zohr
- 80000 Agadir
- Morocco
| | - Abdelkhaleq Chakir
- Groupe de Spectrométrie Moléculaire et Atmosphérique GSMA
- UMR CNRS 7331
- Université de Reims
- 51687 Reims Cedex 2
- France
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Jara-Toro RA, Hernández FJ, Garavagno MDLA, Taccone RA, Pino GA. Water catalysis of the reaction between hydroxyl radicals and linear saturated alcohols (ethanol and n-propanol) at 294 K. Phys Chem Chem Phys 2018; 20:27885-27896. [DOI: 10.1039/c8cp05411h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water accelerates the title reaction by lowering the energy barrier and increasing the dipole moments of the reactants.
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Affiliation(s)
- Rafael A. Jara-Toro
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
| | - Federico J. Hernández
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
| | - María de los A. Garavagno
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
| | - Raúl A. Taccone
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
| | - Gustavo A. Pino
- INFIQC (CONICET – UNC) – Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
- Dpto. de Fisicoquímica – Facultad de Ciencias Químicas – Universidad Nacional de Córdoba – Ciudad Universitaria
- X5000HUA Córdoba
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Yan G, Kim G. Speciation and Sources of Brown Carbon in Precipitation at Seoul, Korea: Insights from Excitation-Emission Matrix Spectroscopy and Carbon Isotopic Analysis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:11580-11587. [PMID: 28929752 DOI: 10.1021/acs.est.7b02892] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Brown carbon (BrC) plays a significant role in the Earth's radiative balance, yet its sources and chemical composition remain poorly understood. In this work, we investigated BrC in the atmospheric environment of Seoul by characterizing dissolved organic matter in precipitation using excitation-emission matrix (EEM) fluorescence spectroscopy coupled with parallel factor analysis (PARAFAC). The two independent fluorescent components identified by PARAFAC were attributed to humic-like substance (HULIS) and biologically derived material based on their significant correlations with measured HULIS isolated using solid-phase extraction and total hydrolyzable tyrosine. The year-long observation shows that HULIS contributes to 66 ± 13% of total fluorescence intensity of our samples on average. By using dual carbon (13C and 14C) isotopic analysis conducted on isolated HULIS, the HULIS fraction of BrC was found to be primarily derived from biomass burning and emission of terrestrial biogenic gases and particles (>70%), with minor contributions from fossil-fuel combustion. The knowledge derived from this study could contribute to the establishment of a characterizing system of BrC components identified by EEM spectroscopy. Our work demonstrates that, EEM fluorescence spectroscopy is a powerful tool in BrC study, on the basis of its chromophore resolving power, allowing investigation into individual components of BrC by other organic matter characterization techniques.
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Affiliation(s)
- Ge Yan
- School of Earth & Environmental Sciences/RIO, Seoul National University , Seoul 151-747, South Korea
| | - Guebuem Kim
- School of Earth & Environmental Sciences/RIO, Seoul National University , Seoul 151-747, South Korea
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Carbon kinetic isotope effects at natural abundances during iron-catalyzed photolytic cleavage of C C bonds in aqueous phase α,ω-dicarboxylic acids. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.08.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Ballesteros B, Ceacero-Vega AA, Jiménez E, Albaladejo J. Atmospheric reactions of methylcyclohexanes with Cl atoms and OH radicals: determination of rate coefficients and degradation products. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:4806-4819. [PMID: 24788931 DOI: 10.1007/s11356-014-2901-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 04/07/2014] [Indexed: 06/03/2023]
Abstract
As the result of biogenic and anthropogenic activities, large quantities of chemical compounds are emitted into the troposphere. Alkanes, in general, and cycloalkanes are an important chemical class of hydrocarbons found in diesel, jet and gasoline, vehicle exhaust emissions, and ambient air in urban areas. In general, the primary atmospheric fate of organic compounds in the gas phase is the reaction with hydroxyl radicals (OH). The oxidation by Cl atoms has gained importance in the study of atmospheric reactions because they may exert some influence in the boundary layer, particularly in marine and coastal environments, and in the Arctic troposphere. The aim of this paper is to study of the atmospheric reactivity of methylcylohexanes with Cl atoms and OH radicals under atmospheric conditions (in air at room temperature and pressure). Relative kinetic techniques have been used to determine the rate coefficients for the reaction of Cl atoms and OH radicals with methylcyclohexane, cis-1,4-dimethylcyclohexane, trans-1,4-dimethylcyclohexane, and 1,3,5-trimethylcyclohexane at 298 ± 2 K and 720 ± 5 Torr of air by Fourier transform infrared) spectroscopy and gas chromatography-mass spectrometry (GC-MS) in two atmospheric simulation chambers. The products formed in the reaction under atmospheric conditions were investigated using a 200-L Teflon bag and employing the technique of solid-phase microextraction coupled to a GC-MS. The rate coefficients obtained for the reaction of Cl atoms with the studied compounds are the following ones (in units of 10(-10) cm(3) molecule(-1) s(-1)): (3.11 ± 0.16), (2.89 ± 0.16), (2.89 ± 0.26), and (2.61 ± 0.42), respectively. For the reactions with OH radicals the determined rate coefficients are (in units of 10(-11) cm(3) molecule(-1) s(-1)): (1.18 ± 0.12), (1.49 ± 0.16), (1.41 ± 0.15), and (1.77 ± 0.23), respectively. The reported error is twice the standard deviation. A detailed mechanism for ring-retaining product channels is proposed to justify the observed reaction products. The global tropospheric lifetimes estimated from the reported OH- and Cl-rate coefficients show that the main removal path for the investigated methylcyclohexanes is the reaction with OH radicals. But in marine environments, after sunrise, Cl reactions become more important in the tropospheric degradation. Thus, the estimated lifetimes range from 16 to 24 h for the reactions of the OH radical (calculated with [OH] = 10(6) atoms cm(-3)) and around 7-8 h in the reactions with Cl atoms in marine environments (calculated with [Cl] = 1.3 × 10(5) atoms cm(-3)). The reaction of Cl atoms and OH radicals and methylcylohexanes can proceed by H abstraction from the different positions.
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Affiliation(s)
- Bernabé Ballesteros
- Department of Physical Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Avda. Camilo José Cela s/n, 13071, Ciudad Real, Spain
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11
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Nozière B, Kalberer M, Claeys M, Allan J, D'Anna B, Decesari S, Finessi E, Glasius M, Grgić I, Hamilton JF, Hoffmann T, Iinuma Y, Jaoui M, Kahnt A, Kampf CJ, Kourtchev I, Maenhaut W, Marsden N, Saarikoski S, Schnelle-Kreis J, Surratt JD, Szidat S, Szmigielski R, Wisthaler A. The molecular identification of organic compounds in the atmosphere: state of the art and challenges. Chem Rev 2015; 115:3919-83. [PMID: 25647604 DOI: 10.1021/cr5003485] [Citation(s) in RCA: 203] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Barbara Nozière
- †Ircelyon/CNRS and Université Lyon 1, 69626 Villeurbanne Cedex, France
| | | | | | | | - Barbara D'Anna
- †Ircelyon/CNRS and Université Lyon 1, 69626 Villeurbanne Cedex, France
| | | | | | | | - Irena Grgić
- ○National Institute of Chemistry, 1000 Ljubljana, Slovenia
| | | | | | - Yoshiteru Iinuma
- ¶Leibniz-Institut für Troposphärenforschung, 04318 Leipzig, Germany
| | | | | | | | - Ivan Kourtchev
- ‡University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Willy Maenhaut
- §University of Antwerp, 2000 Antwerp, Belgium.,□Ghent University, 9000 Gent, Belgium
| | | | | | | | - Jason D Surratt
- ▼University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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Irei S, Rudolph J, Huang L, Auld J, Collin F, Hastie D. Laboratory Studies of Carbon Kinetic Isotope Effects on the Production Mechanism of Particulate Phenolic Compounds Formed by Toluene Photooxidation: A Tool To Constrain Reaction Pathways. J Phys Chem A 2014; 119:5-13. [DOI: 10.1021/jp5104609] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Satoshi Irei
- Centre
for Atmospheric Chemistry and Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario, M3J 1P3, Canada
| | - Jochen Rudolph
- Centre
for Atmospheric Chemistry and Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario, M3J 1P3, Canada
| | - Lin Huang
- Climate
Research Division, Atmospheric Science and Technology Directorate,
Science and Technology Branch, Environment Canada, 4905 Dufferin
Street, Toronto, Ontario, M3H 5T4, Canada
| | - Janeen Auld
- Centre
for Atmospheric Chemistry and Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario, M3J 1P3, Canada
| | - Fabrice Collin
- Centre
for Atmospheric Chemistry and Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario, M3J 1P3, Canada
| | - Donald Hastie
- Centre
for Atmospheric Chemistry and Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario, M3J 1P3, Canada
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Zhang S, Strekowski RS, Monod A, Bosland L, Zetzsch C. Temperature-Dependent Kinetics Study of the Reactions of OH with C2H5I, n-C3H7I, and iso-C3H7I. J Phys Chem A 2012; 116:9497-506. [DOI: 10.1021/jp300575f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shaoliang Zhang
- Laboratoire Chimie Environment, Aix-Marseille Université, 13331 Marseille cedex
03, France,
- Institut de
Radioprotection
et de Sûreté Nucléaire, DPAM/SEMIC/LETR, Centre de Cadarache, 13115 Saint Paul les Durance cedex,
France
| | - Rafal S. Strekowski
- Laboratoire Chimie Environment, Aix-Marseille Université, 13331 Marseille cedex
03, France,
- CNRS, FRE 3416, 13331 Marseille cedex 03, France
| | - Anne Monod
- Laboratoire Chimie Environment, Aix-Marseille Université, 13331 Marseille cedex
03, France,
- CNRS, FRE 3416, 13331 Marseille cedex 03, France
| | - Loïc Bosland
- Institut de
Radioprotection
et de Sûreté Nucléaire, DPAM/SEMIC/LETR, Centre de Cadarache, 13115 Saint Paul les Durance cedex,
France
| | - Cornelius Zetzsch
- Atmospheric Chemistry Research
Laboratory, BAYCEER, University of Bayreuth, Dr. Hans-Frisch-Strasse 1-3, D-95448 Bayreuth, Germany
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14
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Gensch I, Laumer W, Stein O, Kammer B, Hohaus T, Saathoff H, Wegener R, Wahner A, Kiendler-Scharr A. Temperature dependence of the kinetic isotope effect inβ-pinene ozonolysis. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011jd016084] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Giebel BM, Swart PK, Riemer DD. New insights to the use of ethanol in automotive fuels: a stable isotopic tracer for fossil- and bio-fuel combustion inputs to the atmosphere. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:6661-6669. [PMID: 21692481 DOI: 10.1021/es200982t] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Ethanol is currently receiving increased attention because of its use as a biofuel or fuel additive and because of its influence on air quality. We used stable isotopic ratio measurements of (13)C/(12)C in ethanol emitted from vehicles and a small group of tropical plants to establish ethanol's δ(13)C end-member signatures. Ethanol emitted in exhaust is distinctly different from that emitted by tropical plants and can serve as a unique stable isotopic tracer for transportation-related inputs to the atmosphere. Ethanol's unique isotopic signature in fuel is related to corn, a C4 plant and the primary source of ethanol in the U.S. We estimated a kinetic isotope effect (KIE) for ethanol's oxidative loss in the atmosphere and used previous assumptions with respect to the fractionation that may occur during wet and dry deposition. A small number of interpretive model calculations were used for source apportionment of ethanol and to understand the associated effects resulting from atmospheric removal. The models incorporated our end-member signatures and ambient measurements of ethanol, known or estimated source strengths and removal magnitudes, and estimated KIEs associated with atmospheric removal processes for ethanol. We compared transportation-related ethanol signatures to those from biogenic sources and used a set of ambient measurements to apportion each source contribution in Miami, Florida-a moderately polluted, but well ventilated urban location.
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Affiliation(s)
- Brian M Giebel
- University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, Florida 33149, United States.
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Crawford MA, Dang B, Hoang J, Li Z. Kinetic study of OH radical reaction with n
-heptane and n
-hexane at 240-340K using the relative rate/discharge flow/mass spectrometry (RR/DF/MS) technique. INT J CHEM KINET 2011. [DOI: 10.1002/kin.20574] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sivaramakrishnan R, Michael JV. Rate Constants for OH with Selected Large Alkanes: Shock-Tube Measurements and an Improved Group Scheme. J Phys Chem A 2009; 113:5047-60. [DOI: 10.1021/jp810987u] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- R. Sivaramakrishnan
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - J. V. Michael
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439
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Sprengnether MM, Demerjian KL, Dransfield TJ, Clarke JS, Anderson JG, Donahue NM. Rate Constants of Nine C6−C9 Alkanes with OH from 230 to 379 K: Chemical Tracers for [OH]. J Phys Chem A 2009; 113:5030-8. [DOI: 10.1021/jp810412m] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Timothy J. Dransfield
- Department of Chemistry, University of Massachusetts, 100 Morrissey Blvd., Boston, Massachusetts, 02125
| | | | | | - Neil M. Donahue
- Center for Atmospheric Particle Studies, Doherty Hall B204, Carnegie Mellon University, Pittsburgh, Pennsylvania, 15213
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Redeker KR, Davis S, Kalin RM. Isotope values of atmospheric halocarbons and hydrocarbons from Irish urban, rural, and marine locations. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007784] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Stein O, Rudolph J. Modeling and interpretation of stable carbon isotope ratios of ethane in global chemical transport models. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008062] [Citation(s) in RCA: 30] [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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Anderson RS, Huang L, Iannone R, Rudolph J. Measurements of the 12C/13C Kinetic Isotope Effects in the Gas-Phase Reactions of Light Alkanes with Chlorine Atoms. J Phys Chem A 2006; 111:495-504. [PMID: 17228898 DOI: 10.1021/jp064634p] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The carbon kinetic isotope effects (KIEs) of the reactions of several light non-methane hydrocarbons (NMHC) with Cl atoms were determined at room temperature and ambient pressure. All measured KIEs, defined as the ratio of the Cl reaction rate constants of the light isotopologue over that of the heavy isotopologue (Clk12/Clk13) are greater than unity or normal KIEs. For simplicity, measured KIEs are reported in per mil according to Clepsilon=(Clk12/Clk13 -1)x1000 per thousand unless noted otherwise. The following average KIEs were obtained (all in per thousand): 10.73+/-0.20 (ethane), 6.44+/-0.14 (propane), 6.18+/-0.18 (methylpropane), 3.94+/-0.01 (n-butane), 1.79+/-0.42 (methylbutane), 3.22+/-0.17 (n-pentane), 2.02+/-0.40 (n-hexane), 2.06+/-0.19 (n-heptane), 1.54+/-0.15 (n-octane), 3.04+/-0.09 (cyclopentane), 2.30+/-0.09 (cyclohexane), and 2.56+/-0.25 (methylcyclopentane). Measurements of the 12C/13C KIEs for the Cl atom reactions of the C2-C8 n-alkanes were also made at 348 K, and no significant temperature dependence was observed. To our knowledge, these 12C/13C KIE measurements for alkanes+Cl reactions are the first of their kind. Simultaneous to the KIE measurement, the rate constant for the reaction of each alkane with Cl atoms was measured using a relative rate method. Our measurements agree with published values within+/-20%. The measured rate constant for methylcyclopentane, for which no literature value is available, is (2.83+/-0.11)x10-10 cm3 molecule-1 s-1, 1sigma standard error. The Clepsilon values presented here for the C2-C8 alkanes are an order of magnitude smaller than reported methane Clepsilon values (Geophys. Res. Lett., 2000, 27, 1715), in contrast to reported OHepsilon values for methane (J. Geophys. Res. (Atmos.), 2001, 106, 23, 127) and C2-C8 alkanes (J. Phys. Chem. A, 2004, 108, 11537), which are all smaller than 10 per thousand. This has important implications for atmospheric modeling of saturated NMHC stable carbon isotope ratios. 13C-structure reactivity relationship values (13C-SRR) for alkane-Cl reactions have been determined and are similar to previously reported values for alkane-OH reactions.
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Affiliation(s)
- Rebecca S Anderson
- Centre for Atmospheric Chemistry and Chemistry Department, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada.
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