Articles | Volume 16, issue 18
https://doi.org/10.5194/acp-16-11755-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-16-11755-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
21 Sep 2016
Research article |
| 21 Sep 2016
Stable carbon isotope ratios of ambient aromatic volatile organic compounds
Anna Kornilova
Centre for Atmospheric Chemistry, York University, Toronto, ON,
M3J 1P3, Canada
Lin Huang
Environment Canada, Toronto, ON, M3H 5T4, Canada
Marina Saccon
Centre for Atmospheric Chemistry, York University, Toronto, ON,
M3J 1P3, Canada
Jochen Rudolph
CORRESPONDING AUTHOR
Centre for Atmospheric Chemistry, York University, Toronto, ON,
M3J 1P3, Canada
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Andrew D. Teakles, Rita So, Bruce Ainslie, Robert Nissen, Corinne Schiller, Roxanne Vingarzan, Ian McKendry, Anne Marie Macdonald, Daniel A. Jaffe, Allan K. Bertram, Kevin B. Strawbridge, W. Richard Leaitch, Sarah Hanna, Desiree Toom, Jonathan Baik, and Lin Huang
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M. Saccon, A. Kornilova, L. Huang, S. Moukhtar, and J. Rudolph
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A. Kornilova, S. Moukhtar, M. Saccon, L. Huang, W. Zhang, and J. Rudolph
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R. Zhao, A. K. Y. Lee, L. Huang, X. Li, F. Yang, and J. P. D. Abbatt
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M. Saccon, R. Busca, C. Facca, L. Huang, S. Irei, A. Kornilova, D. Lane, and J. Rudolph
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Atmos. Meas. Tech., 6, 301–308, https://doi.org/10.5194/amt-6-301-2013, https://doi.org/10.5194/amt-6-301-2013, 2013
Related subject area
Subject: Isotopes | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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A novel method to determine the concentration and the isotopes of WSOC in aerosols is established and applied in the analysis of a severe haze in eastern China. The results show that the studied site is affected by the photochemical aging, biomass burning and dust aerosols in different episodes during the sampling period. The analysis of WSOC and its isotopes offers a great potential to better understand the source emission, the atmospheric aging and the secondary production of WSOC.
Marina Saccon, Anna Kornilova, Lin Huang, and Jochen Rudolph
Atmos. Chem. Phys., 19, 5495–5509, https://doi.org/10.5194/acp-19-5495-2019, https://doi.org/10.5194/acp-19-5495-2019, 2019
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As compound are emitted into the atmosphere, they can undergo chemical reactions to produce secondary products. This paper investigates the relations of compounds' unique chemical characteristics to the processes that formed them from emissions in the atmosphere. A model is applied to help with this investigation. The complexity of the atmosphere, including mixing of air masses and variability in precursor reactivity, is taken into consideration, and results are presented.
Enno Bahlmann, Frank Keppler, Julian Wittmer, Markus Greule, Heinz Friedrich Schöler, Richard Seifert, and Cornelius Zetzsch
Atmos. Chem. Phys., 19, 1703–1719, https://doi.org/10.5194/acp-19-1703-2019, https://doi.org/10.5194/acp-19-1703-2019, 2019
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Chloromethane is the most important natural carrier of chlorine to the stratosphere. From a newly determined carbon isotope effect of −11.2 ‰ for the tropospheric loss of CH3Cl we derive a tropical rainforest CH3Cl source of 670 ± 200 Gg a−1, 60 % smaller than previous estimates. A revision of previous bottom-up estimates using above-ground biomass instead of rainforest area strongly supports this lower estimate. Our results suggest a large unknown tropical value of 1530 ± 200 Gg a−1.
Pengzhen He, Zhouqing Xie, Xiyuan Chi, Xiawei Yu, Shidong Fan, Hui Kang, Cheng Liu, and Haicong Zhan
Atmos. Chem. Phys., 18, 14465–14476, https://doi.org/10.5194/acp-18-14465-2018, https://doi.org/10.5194/acp-18-14465-2018, 2018
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We present the first observations of the oxygen-17 excess of atmospheric nitrate (Δ17O(NO−3)) collected in Beijing haze to reveal the relative importance of different nitrate formation pathways. We found that nocturnal pathways (N2O5 + H2O/Cl– and NO3 + HC) dominated nitrate production during polluted days (PM2.5 ≥ 75 μg m–3), with a mean possible fraction of 56–97 %.
Frank Keppler, Enno Bahlmann, Markus Greule, Heinz Friedrich Schöler, Julian Wittmer, and Cornelius Zetzsch
Atmos. Chem. Phys., 18, 6625–6635, https://doi.org/10.5194/acp-18-6625-2018, https://doi.org/10.5194/acp-18-6625-2018, 2018
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Chloromethane is involved in stratospheric ozone depletion, but detailed knowledge of its global budget is missing. In this study stable hydrogen isotope analyses were performed to investigate the dominant loss process for atmospheric chloromethane with photochemically produced hydroxyl radicals. The findings might have significant implications for the use of stable isotope signatures in elucidation of global chloromethane cycling.
L. M. T. Joelsson, J. A. Schmidt, E. J. K. Nilsson, T. Blunier, D. W. T. Griffith, S. Ono, and M. S. Johnson
Atmos. Chem. Phys., 16, 4439–4449, https://doi.org/10.5194/acp-16-4439-2016, https://doi.org/10.5194/acp-16-4439-2016, 2016
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We present experimental kinetic isotope effects (KIE) for the OH oxidation of CH3D and 13CH3D and their temperature dependence. Our determination of the 13CH3D + OH KIE is novel and we find no "clumped" isotope effect within the experimental uncertainty.
G. Shi, A. M. Buffen, M. G. Hastings, C. Li, H. Ma, Y. Li, B. Sun, C. An, and S. Jiang
Atmos. Chem. Phys., 15, 9435–9453, https://doi.org/10.5194/acp-15-9435-2015, https://doi.org/10.5194/acp-15-9435-2015, 2015
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We evaluate isotopic composition of NO3- in different environments across East Antarctica. At high snow accumulation sites, isotopic ratios are suggestive of preservation of NO3- deposition. At low accumulation sites, isotopes are sensitive to both the loss of NO3- due to photolysis and secondary formation of NO3- within the snow. The imprint of post-depositional alteration is not uniform with depth, making it difficult to predict the isotopic composition at depth from near-surface data alone.
S. J. Allin, J. C. Laube, E. Witrant, J. Kaiser, E. McKenna, P. Dennis, R. Mulvaney, E. Capron, P. Martinerie, T. Röckmann, T. Blunier, J. Schwander, P. J. Fraser, R. L. Langenfelds, and W. T. Sturges
Atmos. Chem. Phys., 15, 6867–6877, https://doi.org/10.5194/acp-15-6867-2015, https://doi.org/10.5194/acp-15-6867-2015, 2015
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Stratospheric ozone protects life on Earth from harmful UV-B radiation. Chlorofluorocarbons (CFCs) are man-made compounds which act to destroy this barrier.
This paper presents (1) the first measurements of the stratospheric δ(37Cl) of CFCs -11 and -113; (2) the first quantification of long-term trends in the tropospheric δ(37Cl) of CFCs -11, -12 and -113.
This study provides a better understanding of source and sink processes associated with these destructive compounds.
G. Michalski, S. K. Bhattacharya, and G. Girsch
Atmos. Chem. Phys., 14, 4935–4953, https://doi.org/10.5194/acp-14-4935-2014, https://doi.org/10.5194/acp-14-4935-2014, 2014
E. Harris, B. Sinha, P. Hoppe, S. Foley, and S. Borrmann
Atmos. Chem. Phys., 12, 4619–4631, https://doi.org/10.5194/acp-12-4619-2012, https://doi.org/10.5194/acp-12-4619-2012, 2012
E. Harris, B. Sinha, P. Hoppe, J. N. Crowley, S. Ono, and S. Foley
Atmos. Chem. Phys., 12, 407–423, https://doi.org/10.5194/acp-12-407-2012, https://doi.org/10.5194/acp-12-407-2012, 2012
M. K. Vollmer, S. Walter, S. W. Bond, P. Soltic, and T. Röckmann
Atmos. Chem. Phys., 10, 5707–5718, https://doi.org/10.5194/acp-10-5707-2010, https://doi.org/10.5194/acp-10-5707-2010, 2010
T. Röckmann, S. Walter, B. Bohn, R. Wegener, H. Spahn, T. Brauers, R. Tillmann, E. Schlosser, R. Koppmann, and F. Rohrer
Atmos. Chem. Phys., 10, 5343–5357, https://doi.org/10.5194/acp-10-5343-2010, https://doi.org/10.5194/acp-10-5343-2010, 2010
E. J. K. Nilsson, V. F. Andersen, H. Skov, and M. S. Johnson
Atmos. Chem. Phys., 10, 3455–3462, https://doi.org/10.5194/acp-10-3455-2010, https://doi.org/10.5194/acp-10-3455-2010, 2010
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Short summary
The photochemical oxidation of organic compounds in the atmosphere results in the formation of important secondary pollutants such as ozone and fine particles. The extent of oxidation the organic compounds have been subjected too since there emissions is essential is key for understanding the formation of secondary pollutants. This paper demonstrates that measurements of the carbon isotope ratios allow determining the extent of photochemical processing for individual compounds.
The photochemical oxidation of organic compounds in the atmosphere results in the formation of...
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