Articles | Volume 20, issue 16
https://doi.org/10.5194/acp-20-9805-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-9805-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Aug 2020
Research article |
| 21 Aug 2020
| 21 Aug 2020
Quantifying the nitrogen isotope effects during photochemical equilibrium between NO and NO2: implications for δ15N in tropospheric reactive nitrogen
Department of Earth, Atmospheric and Planetary Sciences, Purdue
University, West Lafayette, IN, 47907, USA
Xuan Zhang
Atmospheric Chemistry Observations and Modeling Lab, National
Center for Atmospheric Research, Boulder, CO, 80301, USA
John Orlando
Atmospheric Chemistry Observations and Modeling Lab, National
Center for Atmospheric Research, Boulder, CO, 80301, USA
Geoffrey Tyndall
Atmospheric Chemistry Observations and Modeling Lab, National
Center for Atmospheric Research, Boulder, CO, 80301, USA
Greg Michalski
Department of Earth, Atmospheric and Planetary Sciences, Purdue
University, West Lafayette, IN, 47907, USA
Department of Chemistry, Purdue University, West Lafayette, IN,
47907, USA
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- Isotopic Evidence for the High Contribution of Wintertime Photochemistry to Particulate Nitrate Formation in Northern China Z. Zhang et al. 10.1029/2021JD035324
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- High-Resolution Measurements of Multi-Isotopic Signatures (δ15N, δ18O, and Δ17O) of Winter NO2 in a Megacity in Central China Z. Zhang et al. 10.1021/acs.est.4c07724
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- Application of Stable Isotopes in Identifying the Sources and Formation of Sulfate and Nitrate in PM2.5: A Review J. Peng et al. 10.3390/atmos15111312
- Comparative contributions of primary emission and secondary production of HONO from unfertilized soil in Eastern China M. Fan et al. 10.1016/j.horiz.2025.100136
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27 citations as recorded by crossref.
- Effects of Regional Transport for the Sources and Formation Mechanism of Nitrate Components in Mount Lu Fog Water H. LI et al. 10.3724/EE.1672-9250.2024.52.005
- Vertical Differences of Nitrate Sources in Urban Boundary Layer Based on Tower Measurements M. Fan et al. 10.1021/acs.estlett.2c00600
- Abundances of 15NO2 and H15NO3 in the stratosphere P. Bernath et al. 10.1016/j.jqsrt.2023.108752
- Fast and Efficient Atmospheric NO2 Collection for Isotopic Analysis by a 3D-Printed Denuder System T. Zhou et al. 10.1021/acs.analchem.2c02839
- Isotopic Evidence for the High Contribution of Wintertime Photochemistry to Particulate Nitrate Formation in Northern China Z. Zhang et al. 10.1029/2021JD035324
- Nitrogen isotopes in nitrate aerosols collected in the remote marine boundary layer: Implications for nitrogen isotopic fractionations among atmospheric reactive nitrogen species J. Li et al. 10.1016/j.atmosenv.2020.118028
- Measurement report: Nitrogen isotopes (δ15N) and first quantification of oxygen isotope anomalies (Δ17O, δ18O) in atmospheric nitrogen dioxide S. Albertin et al. 10.5194/acp-21-10477-2021
- Diurnal variations in oxygen and nitrogen isotopes of atmospheric nitrogen dioxide and nitrate: implications for tracing NOx oxidation pathways and emission sources S. Albertin et al. 10.5194/acp-24-1361-2024
- Nitrogen isotopes reveal high NOx emissions from arid agricultural soils in the Salton Sea Air Basin H. Lieb et al. 10.1038/s41598-024-78361-y
- Fog event is possibly a source rather than a sink of atmospheric nitrate aerosols: Insights from isotopic measurements in Nanjing, China H. Yu et al. 10.1016/j.apgeochem.2023.105721
- Apportionment of NOx and NH3 emission sources in an urban coastal airshed: Insights from stable isotopes and a novel approach to intermittent sources Y. Qiu et al. 10.1016/j.atmosenv.2024.120533
- Increasing Nonfossil Fuel Contributions to Atmospheric Nitrate in Urban China from Observation to Prediction M. Fan et al. 10.1021/acs.est.3c01651
- An inverse model to correct for the effects of post-depositional processing on ice-core nitrate and its isotopes: model framework and applications at Summit, Greenland, and Dome C, Antarctica Z. Jiang et al. 10.5194/acp-24-4895-2024
- Multiyear measurements on 15N natural abundance of precipitation nitrate at a rural forested site S. Huang et al. 10.1016/j.atmosenv.2021.118353
- Oxidation pathways and emission sources of atmospheric particulate nitrate in Seoul: based on δ15N and Δ17O measurements S. Lim et al. 10.5194/acp-22-5099-2022
- Formation Mechanisms and Source Apportionments of Nitrate Aerosols in a Megacity of Eastern China Based On Multiple Isotope Observations M. Fan et al. 10.1029/2022JD038129
- Isotopic constraints on lightning as a source of fixed nitrogen in Earth’s early biosphere P. Barth et al. 10.1038/s41561-023-01187-2
- Relating satellite NO2 tropospheric columns to near-surface concentrations: implications from ground-based MAX-DOAS NO2 vertical profile observations B. Chang et al. 10.1038/s41612-024-00891-z
- Atmospheric dynamics impact on urban-ozone variability over the Indo-Gangetic Plain under very low anthropogenic emission D. Ray & S. Raha 10.1007/s13762-022-04580-3
- Quantifying the major sources of nitrate in PM2.5 in a port city in southeastern China: Perspectives from nitrate dual isotopes and NOx emission inventory Q. Miao et al. 10.1016/j.apr.2025.102597
- High-Resolution Measurements of Multi-Isotopic Signatures (δ15N, δ18O, and Δ17O) of Winter NO2 in a Megacity in Central China Z. Zhang et al. 10.1021/acs.est.4c07724
- Nitrate chemistry in the northeast US – Part 1: Nitrogen isotope seasonality tracks nitrate formation chemistry C. Bekker et al. 10.5194/acp-23-4185-2023
- 40 years of theoretical advances in mass-independent oxygen isotope effects and applications in atmospheric chemistry: A critical review and perspectives M. Lin & M. Thiemens 10.1016/j.apgeochem.2023.105860
- Speciated Collection of Nitric Acid and Fine Particulate Nitrate for Nitrogen and Oxygen Stable Isotope Determination D. Blum et al. 10.1021/acs.analchem.0c03696
- Application of Stable Isotopes in Identifying the Sources and Formation of Sulfate and Nitrate in PM2.5: A Review J. Peng et al. 10.3390/atmos15111312
- Comparative contributions of primary emission and secondary production of HONO from unfertilized soil in Eastern China M. Fan et al. 10.1016/j.horiz.2025.100136
- The Earth's atmosphere – A stable isotope perspective and review J. Hoefs & R. Harmon 10.1016/j.apgeochem.2022.105355
Latest update: 13 Jul 2025
Short summary
Nitrogen isotopic compositions of atmospheric reactive nitrogen are widely used to infer their sources. However, the reactions between NO and NO2 strongly impact their isotopes, which was not well understood. We conducted a series of experiments in an atmospheric simulation chamber to determine the isotopic effects of (1) direct isotopic exchange between NO and NO2 and (2) the isotopic fractionations during NOx photochemistry, then developed an equation to quantify the overall isotopic effect.
Nitrogen isotopic compositions of atmospheric reactive nitrogen are widely used to infer their...
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