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Atmospheric Hydroxyl Radical Production from Electronically Excited NO 2 and H 2 O
Abstract
Hydroxyl radicals are often called the “detergent” of the atmosphere because they control the atmosphere's capacity to cleanse itself of pollutants. Here, we show that the reaction of electronically excited nitrogen dioxide with water can be an important source of tropospheric hydroxyl radicals. Using measured rate data, along with available solar flux and atmospheric mixing ratios, we demonstrate that the tropospheric hydroxyl contribution from this source can be a substantial fraction (50%) of that from the traditional O( 1 D) + H 2 O reaction in the boundary-layer region for high solar zenith angles. Inclusion of this chemistry is expected to affect modeling of urban air quality, where the interactions of sunlight with emitted NO x species, volatile organic compounds, and hydroxyl radicals are central in determining the rate of ozone formation.
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Cited by
Atmospheric composition change – global and regional air quality
Monks, P. S., Granier, C., Fuzzi, S., Stohl, A., Williams, M. L., Akimoto, H., Amann, M., Baklanov, A., Baltensperger, U., Bey, I., et al. (2009) · Atmospheric Environment · doi:10.1016/j.atmosenv.2009.08.021 · Cited by 872
Amplified Trace Gas Removal in the Troposphere
Hofzumahaus, A., Rohrer, F., Lu, K., Bohn, B., Brauers, T., Chang, C.-C., Fuchs, H., Holland, F., Kita, K., Kondo, Y., et al. (2009) · Science · doi:10.1126/science.1164566 · Cited by 667
Tropospheric OH and HO2 radicals: field measurements and model comparisons
Stone, D., Whalley, L. K., & Heard, D. E. (2012) · Chemical Society Reviews · doi:10.1039/c2cs35140d · Cited by 599
Young, P. J., Naik, V., Fiore, A. M., Gaudel, A., Guo, J., Lin, M. Y., Neu, J. L., Parrish, D. D., Rieder, H. E., Schnell, J. L., et al. (2018) · Elementa: Science of the Anthropocene · doi:10.1525/elementa.265 · Cited by 444
Tropospheric Ozone Assessment Report
Archibald, A. T., Neu, J. L., Elshorbany, Y. F., Cooper, O. R., Young, P. J., Akiyoshi, H., Cox, R. A., Coyle, M., Derwent, R. G., Deushi, M., et al. (2020) · Elementa: Science of the Anthropocene · doi:10.1525/elementa.2020.034 · Cited by 239
Metadata
- Authors
- Li, S., Matthews, J., & Sinha, A.
- Venue
- Science
- Published
- 2008-03-21
- Volume
- 319
- Issue
- 5870
- Pages
- 1657-1660
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2069912250
- Cited by
- 277
- References
- 0
- FWCI
- 14.16
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Atmospheric Hydroxyl Radical Production from Electronically Excited NO 2 and H 2 O. https://app.cochat.ai/papers/10.1126/science.1151443
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- Li, S., Matthews, J., & Sinha, A. (2008). Atmospheric Hydroxyl Radical Production from Electronically Excited NO 2 and H 2 O. Science. https://doi.org/10.1126/science.1151443
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
