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Liu W, Sun J, Li S, Zhao R. Impacts of local soil and vehicle NO x emissions on ground-level NO 2 concentrations on a university campus in the city of Shenyang, China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 196:63. [PMID: 38112882 DOI: 10.1007/s10661-023-12098-5] [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: 07/18/2023] [Accepted: 11/04/2023] [Indexed: 12/21/2023]
Abstract
Nitrogen dioxide (NO2) is a ubiquitous atmospheric pollutant, and fossil fuel combustion is generally considered its predominant source in and around urban areas. As the total nitrogen deposition is high over here, soil NOx emissions from urban green space might also be an important local source of ground-level NO2. In this study, Willems badge samplers were employed to monitor the spatial and seasonal variations of 2-week mean atmospheric NO2 concentrations at a height of 1.7 m on an urban campus in Northeast China from November 2020 to December 2021. We found considerable small-scale spatial variations of ground-level NO2 concentrations on the campus during the growing season, with local soil NOx emissions as the main driver. According to its linear correlation with green space coverage, the increment in ground-level NO2 concentration was partitioned into two components, with one ascribed to the local soil source (referred to as NO2-Isoil) and the other the local vehicle source (NO2-Ivehicle). NO2-Isoil generally reached a maximum (as high as 25.6 μg/m3) during early spring, while its ratio to the background value generally reached a maximum (could be >1) during late spring and could reach 0.52 to 0.92 during summer. Therefore, soil NOx emissions were an important source of ground-level NO2 on the campus, with the contribution even higher than those of other anthropogenic sources during late spring. Even with light traffic on the campus, NO2-Ivehicle could reach 0.48 times the background value at a site with high frequencies of warm starts.
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Affiliation(s)
- Wei Liu
- College of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, Liaoning, China.
| | - Jiahui Sun
- College of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, Liaoning, China
| | - Sulian Li
- Research Institute No. 240, China National Nuclear Corporation, Shenyang, 110135, Liaoning, China
| | - Rongbo Zhao
- College of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang, 110142, Liaoning, China
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Abdul Nasir J, Guan J, Keal TW, Desmoutier AW, Lu Y, Beale AM, Catlow CRA, Sokol AA. Influence of Solvent on Selective Catalytic Reduction of Nitrogen Oxides with Ammonia over Cu-CHA Zeolite. J Am Chem Soc 2022; 145:247-259. [PMID: 36548055 PMCID: PMC9837844 DOI: 10.1021/jacs.2c09823] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The copper-exchanged zeolite Cu-CHA has received considerable attention in recent years, owing to its application in the selective catalytic reduction (SCR) of NOx species. Here, we study the NH3-SCR reaction mechanism on Cu-CHA using the hybrid quantum mechanical/molecular mechanical (QM/MM) technique and investigate the effects of solvent on the reactivity of active Cu species. To this end, a comparison is made between water- and ammonia-solvated and bare Cu species. The results show the promoting effect of solvent on the oxidation component of the NH3-SCR cycle since the formation of important nitrate species is found to be energetically more favorable on the solvated Cu sites than in the absence of solvent molecules. Conversely, both solvent molecules are predicted to inhibit the reduction component of the NH3-SCR cycle. Diffuse reflectance infrared fourier-transform spectroscopy (DRIFTS) experiments exploiting (concentration) modulation excitation spectroscopy (MES) and phase-sensitive detection (PSD) identified spectroscopic signatures of Cu-nitrate and Cu-nitrosamine (H2NNO), important species which had not been previously observed experimentally. This is further supported by the QM/MM-calculated harmonic vibrational analysis. Additional insights are provided into the reactivity of solvated active sites and the formation of key intermediates including their formation energies and vibrational spectroscopic signatures, allowing the development of a detailed understanding of the reaction mechanism. We demonstrate the role of solvated active sites and their influence on the energetics of important species that must be explicitly considered for an accurate understanding of NH3-SCR kinetics.
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Affiliation(s)
- Jamal Abdul Nasir
- Department
of Chemistry, Kathleen Lonsdale Materials Chemistry, University College London, 20 Gordon Street, LondonWC1H 0AJ, U.K.,
| | - Jingcheng Guan
- Department
of Chemistry, Kathleen Lonsdale Materials Chemistry, University College London, 20 Gordon Street, LondonWC1H 0AJ, U.K.
| | - Thomas W. Keal
- Scientific
Computing Department, STFC Daresbury Laboratory, Keckwick Lane, Daresbury, WarringtonWA4 4AD, U.K.
| | - Alec W. Desmoutier
- Department
of Chemistry, Kathleen Lonsdale Materials Chemistry, University College London, 20 Gordon Street, LondonWC1H 0AJ, U.K.
| | - You Lu
- Scientific
Computing Department, STFC Daresbury Laboratory, Keckwick Lane, Daresbury, WarringtonWA4 4AD, U.K.
| | - Andrew M. Beale
- Department
of Chemistry, Christopher Ingold Building, University College London, 20 Gordon Street, LondonWC1H 0AJ, U.K.,UK
Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, R92 Harwell, OxfordshireOX11 0FA, U.K.
| | - C. Richard A. Catlow
- Department
of Chemistry, Kathleen Lonsdale Materials Chemistry, University College London, 20 Gordon Street, LondonWC1H 0AJ, U.K.,UK
Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, R92 Harwell, OxfordshireOX11 0FA, U.K.,School
of Chemistry, Cardiff University, Park Place, CardiffCF10 3AT, U.K.,
| | - Alexey A. Sokol
- Department
of Chemistry, Kathleen Lonsdale Materials Chemistry, University College London, 20 Gordon Street, LondonWC1H 0AJ, U.K.,
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Fang Y, Fiore AM, Horowitz LW, Levy H, Hu Y, Russell AG. Sensitivity of the NOybudget over the United States to anthropogenic and lightning NOxin summer. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010jd014079] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Affiliation(s)
- Manuel Lerdau
- Blandy Experimental Farm, Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22904, USA.
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Ito A, Sillman S, Penner JE. Effects of additional nonmethane volatile organic compounds, organic nitrates, and direct emissions of oxygenated organic species on global tropospheric chemistry. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2005jd006556] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Weiss-Penzias P, Jaffe DA, Swartzendruber P, Dennison JB, Chand D, Hafner W, Prestbo E. Observations of Asian air pollution in the free troposphere at Mount Bachelor Observatory during the spring of 2004. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006522] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peter Weiss-Penzias
- Interdisciplinary Arts and Sciences Department; University of Washington; Bothell Washington USA
| | - Daniel A. Jaffe
- Interdisciplinary Arts and Sciences Department; University of Washington; Bothell Washington USA
| | - Philip Swartzendruber
- Interdisciplinary Arts and Sciences Department; University of Washington; Bothell Washington USA
| | - James B. Dennison
- Interdisciplinary Arts and Sciences Department; University of Washington; Bothell Washington USA
| | - Duli Chand
- Interdisciplinary Arts and Sciences Department; University of Washington; Bothell Washington USA
| | - William Hafner
- Interdisciplinary Arts and Sciences Department; University of Washington; Bothell Washington USA
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Kunhikrishnan T, Lawrence MG, von Kuhlmann R, Wenig MO, Asman WAH, Richter A, Burrows JP. Regional NOxemission strength for the Indian subcontinent and the impact of emissions from India and neighboring countries on regional O3chemistry. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006036] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Parrish DD. Fraction and composition of NOytransported in air masses lofted from the North American continental boundary layer. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004226] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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9
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Li Q. Export of NOyfrom the North American boundary layer: Reconciling aircraft observations and global model budgets. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004086] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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FENN MARKE, HAEUBER RICHARD, TONNESEN GAILS, BARON JILLS, GROSSMAN-CLARKE SUSANNE, HOPE DIANE, JAFFE DANIELA, COPELAND SCOTT, GEISER LINDA, RUETH HEATHERM, SICKMAN JAMESO. Nitrogen Emissions, Deposition, and Monitoring in the Western United States. Bioscience 2003. [DOI: 10.1641/0006-3568(2003)053[0391:nedami]2.0.co;2] [Citation(s) in RCA: 318] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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DiNunno B. Central/eastern North Pacific photochemical precursor distributions for fall/spring seasons as defined by airborne field studies. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd001044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fusco AC. Analysis of 1970–1995 trends in tropospheric ozone at Northern Hemisphere midlatitudes with the GEOS-CHEM model. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002742] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Zhang X. Numerical modeling of lightning-produced NOxusing an explicit lightning scheme: 1. Two-dimensional simulation as a “proof of concept”. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003224] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Ellison AM, Gotelli NJ. Nitrogen availability alters the expression of carnivory in the northern pitcher plant, Sarracenia purpurea. Proc Natl Acad Sci U S A 2002; 99:4409-12. [PMID: 11904363 PMCID: PMC123661 DOI: 10.1073/pnas.022057199] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Atmospheric transport and deposition of nutrients, especially nitrogen, is a global environmental problem with well-documented consequences for ecosystem dynamics. However, monitoring nitrogen deposition is relatively expensive, monitoring stations are widely spaced, and estimates and predicted impacts of nitrogen deposition are currently derived from spatial modeling and interpolation of limited data. Ombrotrophic ("rain-fed") bogs are nutrient-poor ecosystems that are especially sensitive to increasing nutrient input, and carnivorous plants, which are characteristic of these widespread ecosystem types, may be especially sensitive indicators of N deposition. Botanical carnivory is thought to have evolved in nutrient-poor and well-lit habitats such as bogs because the marginal benefits accruing from carnivory exceed the marginal photosynthetic costs associated with the maintenance of carnivorous organs. However, the production of carnivorous organs can be a phenotypically plastic trait. The northern pitcher plant, Sarracenia purpurea, produces leaves specialized for prey capture and nutrient uptake (pitchers) and leaves that are more efficient at photosynthesis (phyllodia). We hypothesized that relative allocation to these two types of leaves reflects ambient nitrogen availability. We manipulated nutrient availability to plants with leaf enrichment and whole-plot fertilization experiments. Increased nitrogen, but not phosphorus, reduced production of pitchers relative to phyllodia; this result provided empirical support for the cost-benefit model of the evolution of botanical carnivory. Because this phenotypic shift in leaf production occurs in ecological time, our results suggest that S. purpurea could be a reliable and inexpensive biological indicator of nitrogen deposition rates. This suggestion is supported by field observations across a geographic gradient of nitrogen deposition.
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Affiliation(s)
- Aaron M Ellison
- Department of Biological Sciences, Mount Holyoke College, 50 College Street, South Hadley, MA 01075-6418, USA.
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15
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Staudt AC. Global chemical model analysis of biomass burning and lightning influences over the South Pacific in austral spring. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2000jd000296] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ma J. Summertime tropospheric ozone over China simulated with a regional chemical transport model 1. Model description and evaluation. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001354] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ma J. Summertime tropospheric ozone over China simulated with a regional chemical transport model 2. Source contributions and budget. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001355] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Luo M. Simulated observation of tropospheric ozone and CO with the Tropospheric Emission Spectrometer (TES) satellite instrument. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd000804] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kotchenruther RA, Jaffe DA, Jaeglé L. Ozone photochemistry and the role of peroxyacetyl nitrate in the springtime northeastern Pacific troposphere: Results from the Photochemical Ozone Budget of the Eastern North Pacific Atmosphere (PHOBEA) campaign. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd000060] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bey I, Jacob DJ, Yantosca RM, Logan JA, Field BD, Fiore AM, Li Q, Liu HY, Mickley LJ, Schultz MG. Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluation. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd000807] [Citation(s) in RCA: 1659] [Impact Index Per Article: 72.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Palmer PI, Jacob DJ, Chance K, Martin RV, Spurr RJD, Kurosu TP, Bey I, Yantosca R, Fiore A, Li Q. Air mass factor formulation for spectroscopic measurements from satellites: Application to formaldehyde retrievals from the Global Ozone Monitoring Experiment. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900772] [Citation(s) in RCA: 271] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Velders GJM, Granier C, Portmann RW, Pfeilsticker K, Wenig M, Wagner T, Platt U, Richter A, Burrows JP. Global tropospheric NO2column distributions: Comparing three-dimensional model calculations with GOME measurements. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900762] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kotchenruther RA, Jaffe DA, Beine HJ, Anderson TL, Bottenheim JW, Harris JM, Blake DR, Schmitt R. Observations of ozone and related species in the northeast Pacific during the PHOBEA campaigns: 2. Airborne observations. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900425] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Velders GJM, Granier C. Sensitivity of washout on HNO3/NOxratio in atmospheric chemistry transport models. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900516] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Roelofs GJ, Lelieveld J. Tropospheric ozone simulation with a chemistry-general circulation model: Influence of higher hydrocarbon chemistry. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000jd900316] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mauzerall DL, Narita D, Akimoto H, Horowitz L, Walters S, Hauglustaine DA, Brasseur G. Seasonal characteristics of tropospheric ozone production and mixing ratios over East Asia: A global three-dimensional chemical transport model analysis. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000jd900087] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Spivakovsky CM, Logan JA, Montzka SA, Balkanski YJ, Foreman-Fowler M, Jones DBA, Horowitz LW, Fusco AC, Brenninkmeijer CAM, Prather MJ, Wofsy SC, McElroy MB. Three-dimensional climatological distribution of tropospheric OH: Update and evaluation. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999jd901006] [Citation(s) in RCA: 644] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Mickley LJ, Murti PP, Jacob DJ, Logan JA, Koch DM, Rind D. Radiative forcing from tropospheric ozone calculated with a unified chemistry-climate model. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jd900439] [Citation(s) in RCA: 115] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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