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NOx

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1867:. Ozone can cause adverse effects such as damage to lung tissue and reduction in lung function mostly in susceptible populations (children, elderly, asthmatics). Ozone can be transported by wind currents and cause health impacts far from the original sources. The American Lung Association estimates that nearly 50 percent of United States inhabitants live in counties that are not in ozone compliance. In South East England, ground level ozone pollution tends to be highest in the countryside and in suburbs, while in central London and on major roads NO emissions are able to "mop up" ozone to form 1445:. The team determined that the first three tree species, maples, sassafras, and tulip poplar, are associated with ammonia-oxidizing bacteria known to "emit reactive nitrogen from soil." By contrast, the second three tree species, oak, beech and hickory, are associated with microbes that "absorb reactive nitrogen oxides," and thus can have a positive impact on the nitrogen oxide component of air quality. Nitrogen oxide release from forest soils is expected to be highest in Indiana, Illinois, Michigan, Kentucky and Ohio. 2292:(CARB) to offset the combination of vehicle congestion, warm temperatures, extensive sunlight, PM, and topography that all contribute to the formation of ozone and smog. CARB has established a special regulation for Alternative Diesel Fuels to ensure that any new fuels, including biodiesel, coming into the market do not substantially increase 2457:
reduction through increased efficiency in the overall combustion process. Alternatively, the water (e.g. 10 to 50%) is emulsified into the fuel oil before the injection and combustion. This emulsification can either be made in-line (unstabilized) just before the injection or as a drop-in fuel with
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Although the complete mechanism is not fully understood, there are two primary pathways of formation. The first involves the oxidation of volatile nitrogen species during the initial stages of combustion. During the release and before the oxidation of the volatiles, nitrogen reacts to form several
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respiratory exposure can trigger and exacerbate existing asthma symptoms, and may even lead to the development of asthma over longer periods of time. It has also been associated with heart disease, diabetes, birth outcomes, and all-cause mortality, but these nonrespiratory effects are less
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emissions is one of the most important challenges for advances in vehicle technology. While diesel vehicles sold in the US since 2010 are dramatically cleaner than previous diesel vehicles, urban areas continue to seek more ways to reduce the formation of smog and ozone.
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Hauglustaine, Didier; Emmons, Louisa; Newchurch, Mike; Brasseur, Guy; Takao, Toshinori; Matsubara, Kouji; Johnson, James; Ridley, Brian; Stith, Jeff (March 2001). "On the Role of Lightning NOx in the Formation of Tropospheric Ozone Plumes: A Global Model Perspective".
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Nitrogen oxides are released during manufacturing of nitrogen fertilizers. Though nitrous oxide is emitted during its application, it is then reacted in atmosphere to form nitrogen oxides. This third source is attributed to the reaction of atmospheric nitrogen,
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is a hybrid of staged-premixed-radiant combustion technology with major surface combustion preceded by minor radiant combustion. In the Bowin burner, air and fuel gas are premixed at a ratio greater than or equal to the stoichiometric combustion requirement.
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from lightning depends on the season and geographic location. The occurrence of lightning is more common over land near the equator in the inter-tropical convergence zone (ITCZ) during summer months. This area migrates slightly as seasons change.
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emissions than the type of fuel used. This may be especially true for modern, clean diesel vehicles that continuously monitor engine operation electronically and actively control engine parameters and exhaust system operations to limit
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is a precursor for smog formation which is already a known issue for the state of California. In addition to contributing to smog, when nitrogen fertilizer is added to the soil and the excess is released in the form of NO, or leached as
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A recent discovery indicated that cosmic ray and solar flares can significantly influence the number of lightning strikes occurring on Earth. Therefore, space weather can be a major driving force of lightning-produced atmospheric
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formation during combustion is associated with a number of factors such as combustion temperature. As such, it can be observed that the vehicle drive cycle, or the load on the engine have more significant impact on
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by microorganisms. The nitrification process transforms ammonia into nitrate. Denitrification is basically the reverse process of nitrification. During denitrification, nitrate is reduced to nitrite, then NO, then
111:, in air; especially at high temperatures, such as in car engines. In areas of high motor vehicle traffic, such as in large cities, the nitrogen oxides emitted can be a significant source of air pollution. 1271:
Scientists Ott et al. estimated that each flash of lightning on average in the several mid-latitude and subtropical thunderstorms studied turned 7 kg (15 lb) of nitrogen into chemically reactive
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Burkholder, J.B.; Sander, S.P.; Abbatt, J.; Barker, J.R.; Cappa, C.; Crounse, J.D.; Dibble, T.S.; Huie, R.E.; Kolb, C.E.; Kurylo, M.J.; Orkin, V.L.; Percival, C.J.; Wilmouth, D.M.; Wine, P.H. (2019).
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leads to the formation of ozone and the further formation of hydroxyl radicals (·OH) through ozone photolysis. Since the major sink of methane in the atmosphere is by reaction with OH radicals, the
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pollution levels. When nitrogen fertilizer is added to the soil, excess ammonium and nitrate not used by plants can be converted to NO by microorganisms in the soil, which escapes into the air.
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U.S. EPA. Integrated Science Assessment (ISA) For Oxides of Nitrogen – Health Criteria (Final Report, 2016). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/068, 2016.
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fragments derived from fuel, rather than thermal or fuel processes. Occurring in the earliest stage of combustion, this results in the formation of fixed species of nitrogen such as NH (
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Pfeifle, Mark; Georgievskii, Yuri; Jasper, Ahren W.; Klippenstein, Stephen J. (2017-08-28). "Theoretical investigation of intersystem crossing in the cyanonitrene molecule, NCN → NCN".
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is associated with the combustion of nitrogen present in the feed material of cement rotary kilns, at between 300 Â°C and 800 Â°C, where it is considered a minor contributor.
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intermediaries which are then oxidized into NO. If the volatiles evolve into a reducing atmosphere, the nitrogen evolved can readily be made to form nitrogen gas, rather than
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tends to dominate during the combustion of fuels, such as coal, which have a significant nitrogen content, particularly when burned in combustors designed to minimise thermal
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Shrestha, Krishna Prasad; Seidel, Lars; Zeuch, Thomas; Mauss, Fabian (2019-05-02). "Kinetic Modeling of NOx Formation and Consumption during Methanol and Ethanol Oxidation".
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A recent study conducted by the University of California Davis found that adding nitrogen fertilizer to soil in California is contributing 25 percent or more to state-wide
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Ott, Lesley E.; Pickering, Kenneth E.; Stenchikov, Georgiy L.; Allen, Dale J.; DeCaria, Alex J.; Ridley, Brian; Lin, Ruei-Fong; Lang, Stephen & Tao, Wei-Kuo (2010).
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Clean Air Technology Center, Information Transfer and Program Integration Division, Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency
823: 2147:(HONO) through surface-catalyzed reaction. Although the reaction is relatively slow, it is an important reaction in urban areas. In addition, the nitrate radical ( 971:, and people who work or exercise outside are particularly susceptible to adverse effects of smog such as damage to lung tissue and reduction in lung function. 307:
since the conversion between these two species is rapid in the stratosphere and troposphere. During daylight hours, these concentrations together with that of
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chemical additives for long-term emulsion stability (stabilized). Excessive water addition facilitates hot corrosion, which is the primary reason why dry low-
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exceeds a certain level, atmospheric reactions result in net ozone formation. Since tropospheric ozone can absorb infrared radiation, this indirect effect of
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formed through high temperature oxidation of the diatomic nitrogen found in combustion air. The formation rate is primarily a function of temperature and the
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portion of the fuels. This reaction occurs much more slowly than the volatile phase. Only around 20% of the char nitrogen is ultimately emitted as
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Lavoie, G.A.; Heywood, J.B.; Keck, J.C. (1970). "Experimental and Theoretical Study of Nitric Oxide Formation in Internal Combustion Engines".
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Omidvarborna; et al. (December 2015). "NOx emissions from low-temperature combustion of biodiesel made of various feedstocks and blends".
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emissions, subsequent investigation has shown that blends of up to 20% biodiesel in USEPA-approved diesel fuel have no significant impact on
1886: 3761: 1312:. Atmospheric constituents such as nitrogen oxides can be stratified vertically in the atmosphere. Ott noted that the lightning-produced 3111: 2349:
during combustion, however a tradeoff exists as high temperature combustion produces less PM or soot and results in greater power and
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Because of energy limitations, oxygen and nitrogen do not react at ambient temperatures. But at high temperatures, they undergo an
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These are thought to be the principal pathways for formation of nitric acid in the atmosphere. This nitric acid contributes to
1648:, HO, was added by Lavoie, Heywood and Keck to the mechanism and makes a significant contribution to the formation of thermal 1513:
formation, which is highly temperature dependent, is recognized as the most relevant source when combusting natural gas. Fuel
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or ammonia to produce nitrogen and water. SCR is now being used in ships, diesel trucks and in some diesel cars. The use of
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A 2018 study by the Indiana University determined that forests in the eastern United States can expect to see increases in
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has positive contribution to the greenhouse effect. Instead of reacting with ozone in Reaction 3, NO can also react with
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are typically found near the sources at near surface elevation (where it can cause the most significant health effects).
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of nitrogen at that temperature. At high temperatures, usually above 1300 Â°C (2600 Â°F), molecular nitrogen (
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to convert into significant amounts of NO similar to the process that occurs during high temperature fuel combustion.
2365: 3654: 2208:). As mentioned above, nitric acid can be removed through wet and dry deposition and this results in the removal of 451: 19:
This article is about nitrogen oxides produced during combustion. For a more extensive list of nitrogen oxides, see
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emission to less than 0.2 g/km. Low-temperature combustion or LTC technology may help reduce thermal formation of
1725:. The second pathway involves the combustion of nitrogen contained in the char matrix during the combustion of the 535: 2136:. These are ultimately broken down to inorganic nitrate, which is a useful nutrient for plants. During nighttime, 1683:
production from nitrogen-bearing fuels such as certain coals and oil, is the conversion of fuel bound nitrogen to
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was the first to suggest the importance of the first two reactions. The last reaction of atomic nitrogen with the
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represents a "third body", a molecular species that is required to carry away energy from the exothermic reaction
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for mixing ratio of NO, = 10 part per billion (ppb), the time constant is 40 minutes; for = 1 ppb, 4 minutes.
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In other words, the concentration of ozone in the atmosphere is determined by the ratio of these two species.
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also readily reacts with common organic chemicals, and even ozone, to form a wide variety of toxic products:
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technology, whereby water is introduced into the combustion chamber, is also becoming an important means of
2079:) in soil, which is another greenhouse gas. In conclusion, considering several direct and indirect effects, 1249:), this can be precipitated out as acid rain or deposited onto particles in the air. Elevated production of 4460: 3066: 2390: 1984:
that can either increase or decrease the greenhouse effect. First of all, through the reaction of NO with
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emissions can counter the effect of greenhouse gases. For instance, ship traffic emits a great amount of
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reacts rapidly with liquid water (in aerosol particles or cloud drops, but not in the gas phase) to form
3263:(Technical report). Vol. I (5th ed.). US: Environmental Protection Agency. January 1995. AP–42 1860: 273: 3030:
Davidson, E.A. & Kingerlee, W. (1997). "A global inventory of nitric oxide emissions from soils".
1596:) in the combustion air dissociate into their atomic states and participate in a series of reactions. 2551: 2445: 2382: 944: 2639: 1811:
is comparatively small and it is generally only of interest for the most exacting emission targets.
4470: 2067:. Through this way, the deposition leads to nitrogen fertilization and the subsequent formation of 3543: 3135: 3065:
Lagzi, IstvĂĄn; MĂ©szĂĄros, RĂłbert; GelybĂł, Györgyi; LeelƑssy, ÁdĂĄm (2013). "6.3. Denitrification".
1600: 3087:"New Study Finds Nitrogen Fertilizer a Major Contributor to Smog in California | Article | EESI" 1747:
that forms during this process is reduced to nitrogen by the char, which is nearly pure carbon.
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It is estimated that transportation fuels cause 54% of the anthropogenic (i.e. human-caused)
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is typically found at altitudes greater than 5 km, while combustion and biogenic (soil)
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Galloway, J.N.; et al. (September 2004). "Nitrogen cycles: past, present, and future".
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relative to diesel fuel used in the other 49 states. This has been deemed necessary by the
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A Comprehensive Analysis of Biodiesel Impacts on Exhaust Emissions (Draft Technical Report)
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radical) which can oxidize to NO. In fuels that contain nitrogen, the incidence of prompt
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Chemistry of the upper and lower atmosphere : theory, experiments, and applications
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emissions through the combusting oil and as much as 80% through the combusting of coal
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and in turn, changes in the types of trees which predominate. Due to human activity and
4283: 4146: 3983: 3662:(Technical report). US: Environmental Protection Agency. October 2002. EPA420-P-02-001. 3525: 3469: 3444: 3418: 3392: 3236: 3047: 3012: 2875: 2620: 81: 3673:
McCormick, R.L.; Williams, A.; Ireland, J.; Brimhall, M.; Hayes, R.R. (October 2006).
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in the atmosphere may undergo dry or wet deposition and return to land in the form of
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during combustion. During combustion, the nitrogen bound in the fuel is released as a
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emissions resulting from fossil fuel combustion are estimated at 28.5 million tonnes.
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quickly and increase the concentration of ozone and peroxide compounds, especially
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Fenimore, C P (1971). "Formation of nitric oxide in premixed hydrocarbon flames".
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and its blends in general are known to reduce harmful tailpipe emissions such as:
2117:), which can easily be removed by dry and wet deposition. Organic peroxyradicals ( 4390: 4192: 4090: 3715: 3585: 3183:
Beychok, Milton R. (March 1973). "NOX emission from fuel combustion controlled".
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technologies are favored today besides the requirement of a more complex system.
2350: 2237: 2133: 1914: 1894: 1345: 423:{\displaystyle {\ce {NO2 + h\nu -> NO + O}},\qquad \lambda <398~{\ce {nm}}} 148: 3732:
Nitrogen oxides emissions standards for domestic gas appliances background study
4344: 4299: 4291: 3971: 3958: 3936: 3835: 3682:(Technical report). US: National Renewable Energy Laboratory. NREL/MP-540-40554 3200:
Zel'dovich, Y.B. (1946). "The Oxidation of Nitrogen in Combustion Explosions".
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emissions. While earlier studies suggested biodiesel could sometimes decrease
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Atmospheric chemistry and physics : from air pollution to climate change
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radicals, OH radicals are recycled, which oxidize methane molecules, meaning
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where M denotes a third molecule required to stabilize the addition product.
732:{\displaystyle {\frac {{\ce {}}}{{\ce {}}}}={\frac {k_{3}}{j_{{\ce {NO2}}}}}} 136: 69: 2974: 2607: 2578: 4416: 4361: 4315: 4179: 4003: 3979: 3941: 3521: 3478: 3353: 2616: 2144: 1890: 1430: 1338: 1208: 1204: 312: 202: 108: 46: 1954:) and thus increase the concentration of ozone. Once the concentration of 1268:
production from lightning can be observed through satellite observations.
4323: 4109: 4058: 4022: 3571: 3460: 2921: 2276: 2245: 2198: 2107: 1845: 1239: 1017:) is highly soluble in liquid water in aerosol particles or cloud drops. 1007: 280:, during the combustion of a mixture of air and fuel, and naturally in a 265: 198: 2930: 985:
is further oxidized in the gas phase during daytime by reaction with OH
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Atmospheric Chemistry and Physics: From Air Pollution to Climate Change
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Chemical Kinetics and Photochemical Data for Use in Atmospheric Studies
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O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century"
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in the atmosphere is removed through several pathways. During daytime,
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emissions from ship travel may lead to a net global cooling. However,
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Lammel, Gerhard; Graßl, Hartmut (1995). "Greenhouse effect of NOX".
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and establishes an equilibrium reaction with dinitrogen pentoxide (
1726: 327: 96: 2693: 947:(VOCs) react in the presence of sunlight, they form photochemical 4434: 4422: 4398: 4065: 4010: 3953: 3926: 3904: 3894: 3809: 3785: 3112:"IU study predicts air pollutant increase from U.S. forest soils" 1841: 1779: 1442: 1402: 1162: 3672: 3551:. Organisation for Economic Co-operation and Development. 2010. 1290:
produced by lightning per year is 8.6 million tonnes. However,
1165:, which is of use to growing plants. The aqueous phase reaction 2356: 968: 277: 100: 2637: 3886: 3881: 3873: 3843: 1864: 1799: 1448: 1438: 1422: 338: 308: 269: 3136:"Nitrogen Oxides: What is NOx? | E Instruments | e-inst.com" 2691: 2577:
Ravishankara, A. R.; Daniel, J. S.; Portmann, R. W. (2009).
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is normally considered negligible. A fourth source, called
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emissions have a negative contribution to global warming.
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is too slow to be of any significance in the atmosphere.
974: 721: 697: 644: 588: 572: 550: 494: 472: 374: 3366: 3160:"Nitrogen Oxides (NOx), Why and How They Are Controlled" 3572:
Intergovernmental Panel on Climate Change, ed. (2014),
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this can be a costly process for the farming industry.
2640:"Air Monitoring Instrumentation Nitrogen Oxides (NOy)" 3433:, King's College London, Environmental Research Group 2947:"The global lightning-induced nitrogen oxides source" 1703:, or NO. Fuel can contribute as much as 50% of total 863: 811: 761: 626: 538: 454: 362: 95:
gases are usually produced from the reaction between
3620: 2709: 2707: 2705: 2654: 2652: 3621:Finlayson-Pitts, Barbara J; Pitts, James N (2000). 2659:Seinfeld, John H.; Pandis, Spyros N. (2016-03-29). 2515: 2513: 2511: 3616: 3614: 3612: 3610: 2944: 2197:reacts with water vapor or liquid water and forms 902: 817: 769: 731: 594: 506: 422: 3218: 3029: 2702: 2649: 2483: 2481: 2479: 1814: 4452: 3734:Combustion Engineering Consultant; February 2000 3676:Effects of Biodiesel Blends on Vehicle Emissions 3578:Climate Change 2013 - the Physical Science Basis 2508: 1211:due to the extreme heating and cooling within a 3607: 3580:, Cambridge University Press, pp. 31–116, 2545: 2543: 1370:and finally nitrogen. Through these processes, 1026:also reacts with ozone to form nitrate radical 507:{\displaystyle {\ce {O + O2 + M -> O3 + M}}} 272:of nitrogen. Such temperatures arise inside an 3199: 3193: 2713: 2658: 2476: 2240:; particulate matter (PM), otherwise known as 2106:reacts with hydroxyl radicals (·OH) and forms 1238:from lightning can become oxidized to produce 595:{\displaystyle {\ce {O3 + NO -> NO2 + O2}}} 72:. These gases contribute to the formation of 3755: 3257:Compilation of air pollutant emission factors 2781:United States Environmental Protection Agency 2714:Seinfeld, John H.; Pandis, Spyros N. (2006). 1215:strike. This causes stable molecules such as 825:that is needed to reach a steady state among 3545:Globalisation, Transport and the Environment 3494:Environmental Science and Pollution Research 2540: 2519: 2488:Mollenhauer, Klaus; Tschöke, Helmut (2010). 2389:in motor vehicle engines have significantly 2357:Regulation and emission control technologies 1599:The three principal reactions (the extended 967:Children, people with lung diseases such as 300:refers to the total concentration of NO and 3491: 2802:"Lightning NO x and Impacts on Air Quality" 2550:Annamalai, Kalyan; Puri, Ishwar K. (2007). 3762: 3748: 3178: 3176: 1449:Industrial sources (anthropogenic sources) 1070:, but at night it can react with a second 259: 16:Term for nitric oxide and nitrogen dioxide 3468: 2973: 2929: 2817: 2606: 1975:There are also other indirect effects of 188:compounds produced from the oxidation of 3280: 2994: 1844:, moisture, and other compounds to form 903:{\displaystyle \tau ={\frac {1}{k_{3}}}} 3283:Symposium (International) on Combustion 3182: 3173: 3109: 3074:. Eötvös LorĂĄnd University. p. 63. 2773:"Health and Environmental Impacts of NO 1161:or may deposit to soil, where it makes 4453: 3442: 3212: 2799: 2738: 1348:plants also contribute to atmospheric 975:Formation of nitric acid and acid rain 3743: 2945:Schumann, U.; Huntrieser, H. (2007). 2570: 1929:The direct effect of the emission of 1433:have been pushing out the beneficial 120:gases are also produced naturally by 3769: 2638:US Environmental Protection Agency. 2487: 2220: 2154:) is formed by the reaction between 1863:in the presence of sunlight to form 1640:All three reactions are reversible. 929: 854: 834:and ozone is dominated by reaction ( 617: 529: 445: 353: 341:(which reacts with NO to again form 3084: 2741:Chemistry of the natural atmosphere 1926:comes into contact with salt mist. 1763:, with radicals such as C, CH, and 1333: 23:. For other meanings of "Nox", see 13: 3421:, Environmental Protection Agency. 3032:Nutrient Cycling in Agroecosystems 2553:Combustion Science and Engineering 2549: 1199: 326:is determined by the intensity of 14: 4482: 3369:Combustion Science and Technology 3221:Combustion Science and Technology 2366:selective non-catalytic reduction 2844:Journal of Atmospheric Chemistry 2743:(2nd ed.). Academic Press. 2275:emissions compared with regular 1972:is intensifying global warming. 1904:. Recently another pathway, via 337:to NO) and the concentration of 3724: 3693: 3666: 3647: 3565: 3536: 3485: 3436: 3424: 3412: 3403: 3360: 3310:The Journal of Chemical Physics 3301: 3274: 3247: 3152: 3128: 3103: 3078: 3058: 3023: 2988: 2938: 2902:Journal of Geophysical Research 2834: 2793: 2765: 2404:Volkswagen emissions violations 2186:). Via heterogeneous reaction, 2132:and result in the formation of 798:and ozone, and is known as the 402: 2732: 2685: 2631: 2368:(SNCR) reduce post combustion 2290:California Air Resources Board 1819:There is strong evidence that 1815:Health and environment effects 1379:is emitted to the atmosphere. 894: 886: 789:relates the concentrations of 701: 683: 660: 654: 647: 631: 559: 481: 386: 1: 3625:. San Diego: Academic Press. 3381:10.1080/00102202.2019.1606804 3295:10.1016/S0082-0784(71)80040-1 3110:Fryling, Kevin (2019-01-22). 2800:Murray, Lee T. (2016-04-25). 2470: 2421:significantly reduce thermal 2377:by reacting the exhaust with 2362:Selective catalytic reduction 2125:) can also react with NO and 1848:vapor and related particles. 1635:N + OH· ⇌ NO + H· 1531:. The contribution of prompt 1453:The three primary sources of 840:), which reverses reactions ( 3730:Bob Joynt & Stephen Wu, 3586:10.1017/cbo9781107415324.005 2718:(2nd rev. ed.). Wiley. 2534:10.1016/j.fuproc.2015.08.031 2494:. Springer. pp. 445–6. 2301:emissions. The reduction of 1946:and organic peroxyradicals ( 7: 3431:London Air - What is Ozone? 3254:"1.1.3.3 Nitrogen Oxides". 3202:Acta Physicochimica U.S.S.R 2409:Other technologies such as 2391:reduced vehicular emissions 2010:which provides a source of 916: 848: 842: 836: 785: 779: 745: 608: 520: 436: 268:reaction producing various 68:that are most relevant for 10: 4487: 3140:E Instruments | e-inst.com 2556:. CRC Press. p. 775. 2522:Fuel Processing Technology 2491:Handbook of Diesel Engines 2402:was the main focus of the 1861:volatile organic compounds 1696:and ultimately forms free 1555: 1194: 945:volatile organic compounds 319:(PSS); the ratio of NO to 274:internal combustion engine 18: 4389: 4228: 3970: 3866: 3778: 3233:10.1080/00102206908952211 3009:10.1007/s10533-004-0370-0 2819:10.1007/s40726-016-0031-7 2806:Current Pollution Reports 2430:in industrial processes. 2383:exhaust gas recirculation 1750: 770:{\displaystyle {\ce {M}}} 231:), peroxyalkyl nitrates ( 168:is defined as the sum of 2739:Peter., Warneck (2000). 1897:some of which may cause 238:), the nitrate radical ( 153:global warming potential 3449:Environ Health Perspect 3044:10.1023/A:1009738715891 2975:10.5194/acp-7-3823-2007 2864:10.1023/a:1006452309388 2663:(3rd ed.). Wiley. 2608:10.1126/science.1176985 2257:and sometimes increase 1660: 260:Formation and reactions 224:(PAN), alkyl nitrates ( 80:, as well as affecting 3443:Potera, Carol (2008). 2019:over the ocean. Then, 1674:. The major source of 904: 819: 771: 733: 596: 508: 424: 3186:Oil & Gas Journal 3068:Atmospheric Chemistry 2217:from the atmosphere. 2161:and ozone. At night, 905: 820: 818:{\displaystyle \tau } 800:Leighton relationship 772: 734: 597: 509: 425: 317:photostationary state 289:atmospheric chemistry 32:atmospheric chemistry 3461:10.1289/ehp.116-a288 2922:10.1029/2009JD011880 2387:catalytic converters 2168:further reacts with 1772:nitrogen monohydride 1738:, since much of the 1603:) producing thermal 1601:Zel'dovich mechanism 1079:dinitrogen pentoxide 1052:During the daytime, 962:peroxyacetyl nitrate 861: 809: 759: 624: 536: 452: 360: 222:peroxyacetyl nitrate 207:dinitrogen pentoxide 4461:Airborne pollutants 3574:"Technical Summary" 3322:2017JChPh.147h4310P 2966:2007ACP.....7.3823S 2914:2010JGRD..115.4301O 2856:2001JAtC...38..277H 2599:2009Sci...326..123R 2411:flameless oxidation 1207:is produced during 723: 699: 646: 590: 574: 552: 496: 474: 376: 276:or a power station 3714:2015-09-29 at the 3506:10.1007/bf02987512 1829:well-established. 1796:dihydrogen cyanide 900: 815: 767: 729: 711: 687: 634: 592: 578: 562: 540: 504: 484: 462: 420: 364: 107:of fuels, such as 82:tropospheric ozone 4448: 4447: 3632:978-0-08-052907-3 3595:978-1-107-41532-4 3558:978-92-64-07919-9 3330:10.1063/1.4999788 2954:Atmos. Chem. Phys 2750:978-0-12-735632-7 2725:978-0-471-72018-8 2670:978-1-119-22116-6 2579:"Nitrous Oxide (N 2563:978-0-8493-2071-2 2501:978-3-540-89082-9 2419:staged combustion 1359:nitrogen fixation 930:Formation of smog 924: 923: 898: 892: 765: 753: 752: 727: 714: 690: 665: 659: 637: 616: 615: 581: 565: 558: 543: 528: 527: 502: 487: 480: 465: 458: 444: 443: 418: 414: 397: 391: 382: 367: 247:peroxynitric acid 135:does not include 45:is shorthand for 4478: 4438: 4426: 4402: 4391:Oxidation states 4220: 4219: 4188: 4187: 4122: 4121: 4086: 4085: 4074: 4073: 4019: 4018: 3764: 3757: 3750: 3741: 3740: 3735: 3728: 3722: 3708: 3697: 3691: 3690: 3688: 3687: 3681: 3670: 3664: 3663: 3661: 3651: 3645: 3644: 3618: 3605: 3604: 3603: 3602: 3569: 3563: 3562: 3550: 3540: 3534: 3533: 3489: 3483: 3482: 3472: 3440: 3434: 3428: 3422: 3416: 3410: 3407: 3401: 3400: 3364: 3358: 3357: 3305: 3299: 3298: 3278: 3272: 3271: 3269: 3268: 3262: 3251: 3245: 3244: 3216: 3210: 3209: 3197: 3191: 3190: 3180: 3171: 3170: 3169:. November 1999. 3164: 3156: 3150: 3149: 3147: 3146: 3132: 3126: 3125: 3123: 3122: 3107: 3101: 3100: 3098: 3097: 3082: 3076: 3075: 3073: 3062: 3056: 3055: 3027: 3021: 3020: 2992: 2986: 2985: 2983: 2982: 2977: 2951: 2942: 2936: 2935: 2933: 2893: 2884: 2883: 2838: 2832: 2831: 2821: 2797: 2791: 2790: 2788: 2787: 2769: 2763: 2762: 2736: 2730: 2729: 2711: 2700: 2699: 2689: 2683: 2682: 2656: 2647: 2646: 2644: 2635: 2629: 2628: 2610: 2574: 2568: 2567: 2547: 2538: 2537: 2517: 2506: 2505: 2485: 2466: 2456: 2440: 2429: 2401: 2376: 2348: 2339: 2329: 2319: 2309: 2300: 2287: 2274: 2265: 2256: 2229: 2216: 2207: 2196: 2185: 2174: 2167: 2160: 2153: 2143:and NO can form 2142: 2134:organic nitrates 2131: 2124: 2116: 2105: 2098: 2087: 2078: 2066: 2065: 2064: 2061: 2054: 2047: 2038: 2029: 2018: 2009: 2000: 1991: 1983: 1971: 1962: 1953: 1945: 1937: 1925: 1912: 1884: 1873: 1858: 1839: 1827: 1810: 1793: 1784:hydrogen cyanide 1769: 1762: 1746: 1737: 1724: 1711: 1702: 1691: 1682: 1673: 1656: 1646:hydroxyl radical 1636: 1631: 1622: 1611: 1595: 1588: 1577: 1568: 1551: 1539: 1530: 1521: 1512: 1500: 1489: 1478: 1461: 1416: 1399: 1390: 1378: 1369: 1356: 1334:Biogenic sources 1329: 1320: 1311: 1298: 1289: 1280: 1267: 1257: 1248: 1237: 1228: 1221: 1187: 1152: 1145: 1126: 1119: 1105: 1094: 1076: 1069: 1058: 1047: 1025: 1016: 1001: 994: 984: 959: 942: 918: 909: 907: 906: 901: 899: 897: 893: 890: 885: 884: 871: 855: 833: 824: 822: 821: 816: 797: 776: 774: 773: 768: 766: 763: 747: 738: 736: 735: 730: 728: 726: 725: 724: 722: 719: 712: 704: 700: 698: 695: 688: 682: 681: 671: 666: 664: 663: 657: 651: 650: 645: 642: 635: 628: 618: 610: 601: 599: 598: 593: 591: 589: 586: 579: 573: 570: 563: 556: 551: 548: 541: 530: 522: 513: 511: 510: 505: 503: 500: 495: 492: 485: 478: 473: 470: 463: 456: 446: 438: 429: 427: 426: 421: 419: 416: 412: 398: 395: 389: 380: 375: 372: 365: 354: 347: 336: 330:(which converts 325: 315:, also known as 306: 299: 255: 244: 237: 230: 219: 196: 186: 176: 166: 146: 134: 119: 94: 63: 55:nitrogen dioxide 52: 43: 4486: 4485: 4481: 4480: 4479: 4477: 4476: 4475: 4471:Nitrogen oxides 4451: 4450: 4449: 4444: 4432: 4420: 4396: 4385: 4381: 4373: 4365: 4357: 4348: 4340: 4336: 4327: 4319: 4311: 4303: 4295: 4287: 4279: 4271: 4261: 4252: 4244: 4224: 4218: 4215: 4214: 4213: 4211: 4204: 4200: 4196: 4186: 4183: 4182: 4181: 4174: 4167: 4163: 4150: 4142: 4138: 4129: 4120: 4117: 4116: 4115: 4113: 4106: 4094: 4084: 4081: 4080: 4079: 4072: 4069: 4068: 4067: 4062: 4054: 4050: 4042: 4038: 4031: 4017: 4014: 4013: 4012: 4007: 3999: 3995: 3987: 3966: 3962: 3949: 3945: 3921: 3913: 3890: 3877: 3862: 3856: 3847: 3839: 3831: 3827: 3818: 3805: 3797: 3789: 3774: 3768: 3738: 3729: 3725: 3716:Wayback Machine 3707: 3701: 3698: 3694: 3685: 3683: 3679: 3671: 3667: 3659: 3653: 3652: 3648: 3633: 3619: 3608: 3600: 3598: 3596: 3570: 3566: 3559: 3548: 3542: 3541: 3537: 3490: 3486: 3441: 3437: 3429: 3425: 3417: 3413: 3408: 3404: 3365: 3361: 3306: 3302: 3279: 3275: 3266: 3264: 3260: 3253: 3252: 3248: 3217: 3213: 3198: 3194: 3181: 3174: 3162: 3158: 3157: 3153: 3144: 3142: 3134: 3133: 3129: 3120: 3118: 3108: 3104: 3095: 3093: 3083: 3079: 3071: 3063: 3059: 3028: 3024: 2997:Biogeochemistry 2993: 2989: 2980: 2978: 2949: 2943: 2939: 2894: 2887: 2839: 2835: 2798: 2794: 2785: 2783: 2776: 2771: 2770: 2766: 2751: 2737: 2733: 2726: 2712: 2703: 2690: 2686: 2671: 2657: 2650: 2642: 2636: 2632: 2593:(5949): 123–5. 2582: 2575: 2571: 2564: 2548: 2541: 2518: 2509: 2502: 2486: 2477: 2473: 2465: 2459: 2455: 2449: 2446:Water Injection 2439: 2433: 2428: 2422: 2400: 2394: 2375: 2369: 2359: 2351:fuel efficiency 2347: 2341: 2338: 2332: 2328: 2322: 2318: 2312: 2308: 2302: 2299: 2293: 2286: 2280: 2273: 2267: 2264: 2258: 2255: 2249: 2244:; and unburned 2238:carbon monoxide 2231: 2228: 2222: 2215: 2209: 2206: 2202: 2195: 2191: 2187: 2184: 2180: 2176: 2173: 2169: 2166: 2162: 2159: 2155: 2152: 2148: 2141: 2137: 2130: 2126: 2122: 2118: 2115: 2111: 2104: 2100: 2097: 2091: 2086: 2080: 2076: 2072: 2062: 2059: 2058: 2056: 2053: 2049: 2046: 2040: 2037: 2031: 2028: 2024: 2017: 2011: 2008: 2002: 1999: 1993: 1989: 1985: 1982: 1976: 1970: 1964: 1961: 1955: 1951: 1947: 1943: 1939: 1936: 1930: 1924: 1918: 1915:nitryl chloride 1911: 1905: 1895:nitrate radical 1883: 1877: 1872: 1868: 1857: 1851: 1838: 1832: 1826: 1820: 1817: 1809: 1803: 1791: 1787: 1768: 1764: 1761: 1757: 1753: 1745: 1739: 1736: 1730: 1723: 1717: 1710: 1704: 1701: 1697: 1690: 1684: 1681: 1675: 1672: 1666: 1663: 1655: 1649: 1634: 1629: 1625: 1620: 1616: 1610: 1604: 1594: 1590: 1587: 1583: 1576: 1570: 1567: 1561: 1558: 1550: 1544: 1538: 1532: 1529: 1523: 1520: 1514: 1511: 1505: 1499: 1493: 1488: 1482: 1477: 1471: 1460: 1454: 1451: 1415: 1409: 1398: 1392: 1389: 1383: 1377: 1371: 1367: 1363: 1357:, by promoting 1355: 1349: 1346:nitrogen fixing 1344:and the use of 1336: 1328: 1322: 1319: 1313: 1310: 1304: 1297: 1291: 1288: 1282: 1279: 1273: 1266: 1260: 1256: 1250: 1247: 1243: 1236: 1230: 1227: 1223: 1220: 1216: 1202: 1200:Natural sources 1197: 1186: 1182: 1178: 1174: 1170: 1151: 1147: 1143: 1139: 1135: 1131: 1125: 1121: 1118: 1114: 1110: 1104: 1100: 1096: 1093: 1089: 1085: 1075: 1071: 1068: 1064: 1057: 1053: 1046: 1042: 1038: 1034: 1030: 1024: 1020: 1015: 1011: 1000: 996: 993: 989: 983: 979: 977: 958: 952: 941: 935: 932: 889: 880: 876: 875: 870: 862: 859: 858: 832: 826: 810: 807: 806: 796: 790: 762: 760: 757: 756: 720: 715: 710: 709: 705: 696: 691: 686: 677: 673: 672: 670: 653: 652: 643: 638: 630: 629: 627: 625: 622: 621: 587: 582: 571: 566: 549: 544: 539: 537: 534: 533: 493: 488: 471: 466: 455: 453: 450: 449: 415: 373: 368: 363: 361: 358: 357: 346: 342: 335: 331: 324: 320: 305: 301: 298: 292: 262: 254: 250: 243: 239: 236: 232: 229: 225: 218: 214: 210: 195: 189: 185: 179: 175: 169: 165: 159: 149:ozone depletion 144: 140: 133: 127: 118: 112: 93: 87: 66:nitrogen oxides 62: 58: 50: 42: 36: 28: 17: 12: 11: 5: 4484: 4474: 4473: 4468: 4463: 4446: 4445: 4395: 4393: 4387: 4386: 4384: 4383: 4379: 4375: 4371: 4367: 4363: 4359: 4355: 4351: 4346: 4342: 4338: 4334: 4330: 4325: 4321: 4317: 4313: 4309: 4305: 4301: 4297: 4293: 4289: 4285: 4281: 4277: 4273: 4269: 4265: 4259: 4254: 4250: 4246: 4242: 4238: 4232: 4230: 4226: 4225: 4223: 4222: 4216: 4209: 4202: 4198: 4194: 4190: 4184: 4177: 4172: 4165: 4161: 4157: 4148: 4144: 4140: 4136: 4132: 4127: 4118: 4111: 4104: 4096: 4092: 4088: 4082: 4070: 4060: 4056: 4052: 4048: 4044: 4040: 4036: 4029: 4025: 4015: 4005: 4001: 3997: 3993: 3989: 3985: 3976: 3974: 3968: 3967: 3965: 3964: 3960: 3956: 3951: 3947: 3943: 3939: 3934: 3929: 3924: 3919: 3915: 3911: 3907: 3902: 3897: 3892: 3888: 3884: 3879: 3875: 3870: 3868: 3864: 3863: 3861: 3860: 3854: 3849: 3845: 3841: 3837: 3833: 3829: 3825: 3821: 3816: 3812: 3807: 3803: 3799: 3795: 3791: 3787: 3782: 3780: 3776: 3775: 3767: 3766: 3759: 3752: 3744: 3737: 3736: 3723: 3703: 3692: 3665: 3646: 3631: 3606: 3594: 3564: 3557: 3535: 3484: 3435: 3423: 3411: 3402: 3375:(9): 1628–60. 3359: 3300: 3289:(1): 373–380. 3273: 3246: 3227:(4): 313–326. 3211: 3192: 3172: 3151: 3127: 3102: 3085:Houlton, Ben. 3077: 3057: 3022: 3003:(2): 153–226. 2987: 2937: 2908:(D4): D04301. 2885: 2850:(3): 277–294. 2833: 2812:(2): 115–133. 2792: 2774: 2764: 2749: 2731: 2724: 2701: 2684: 2669: 2648: 2630: 2580: 2569: 2562: 2539: 2507: 2500: 2474: 2472: 2469: 2461: 2451: 2435: 2424: 2396: 2371: 2358: 2355: 2343: 2334: 2324: 2314: 2304: 2295: 2282: 2269: 2260: 2251: 2230: 2224: 2221:Biodiesel and 2219: 2211: 2204: 2193: 2189: 2182: 2178: 2171: 2164: 2157: 2150: 2139: 2128: 2120: 2113: 2102: 2093: 2082: 2074: 2051: 2042: 2033: 2026: 2013: 2004: 1995: 1987: 1978: 1966: 1957: 1949: 1941: 1932: 1920: 1907: 1879: 1870: 1853: 1834: 1822: 1816: 1813: 1805: 1789: 1766: 1759: 1752: 1749: 1741: 1732: 1719: 1706: 1699: 1686: 1677: 1668: 1662: 1659: 1651: 1638: 1637: 1632: 1627: 1623: 1621:+ O ⇌ NO + N 1618: 1606: 1592: 1589:) and oxygen ( 1585: 1580:residence time 1572: 1563: 1557: 1554: 1546: 1534: 1525: 1516: 1507: 1502: 1501: 1495: 1490: 1484: 1479: 1473: 1456: 1450: 1447: 1419:climate change 1411: 1394: 1385: 1373: 1365: 1351: 1335: 1332: 1324: 1315: 1306: 1293: 1284: 1275: 1262: 1252: 1245: 1232: 1225: 1218: 1201: 1198: 1196: 1193: 1189: 1188: 1184: 1180: 1176: 1172: 1155: 1154: 1149: 1141: 1137: 1133: 1123: 1116: 1112: 1108: 1107: 1102: 1098: 1091: 1087: 1073: 1066: 1055: 1050: 1049: 1044: 1040: 1036: 1032: 1022: 1013: 1004: 1003: 998: 991: 981: 976: 973: 954: 937: 931: 928: 922: 921: 912: 910: 896: 888: 883: 879: 874: 869: 866: 828: 814: 792: 751: 750: 741: 739: 718: 708: 703: 694: 685: 680: 676: 669: 662: 656: 649: 641: 633: 614: 613: 604: 602: 585: 577: 569: 561: 555: 547: 526: 525: 516: 514: 499: 491: 483: 477: 469: 461: 442: 441: 432: 430: 411: 408: 405: 401: 394: 388: 385: 379: 371: 344: 333: 322: 303: 294: 261: 258: 252: 241: 234: 227: 216: 212: 197:which include 191: 181: 171: 161: 142: 129: 114: 89: 60: 38: 21:nitrogen oxide 15: 9: 6: 4: 3: 2: 4483: 4472: 4469: 4467: 4464: 4462: 4459: 4458: 4456: 4442: 4437: 4436: 4430: 4425: 4424: 4418: 4414: 4410: 4406: 4401: 4400: 4394: 4392: 4388: 4382: 4376: 4374: 4368: 4366: 4360: 4358: 4352: 4350: 4343: 4341: 4331: 4329: 4322: 4320: 4314: 4312: 4306: 4304: 4298: 4296: 4290: 4288: 4282: 4280: 4274: 4272: 4266: 4263: 4262: 4255: 4253: 4247: 4245: 4239: 4237: 4234: 4233: 4231: 4227: 4221: 4205: 4191: 4189: 4178: 4176: 4168: 4158: 4156: 4152: 4145: 4143: 4133: 4131: 4123: 4107: 4100: 4097: 4095: 4089: 4087: 4075: 4063: 4057: 4055: 4045: 4043: 4032: 4026: 4024: 4020: 4008: 4002: 4000: 3990: 3988: 3981: 3978: 3977: 3975: 3973: 3969: 3963: 3957: 3955: 3952: 3950: 3940: 3938: 3935: 3933: 3930: 3928: 3925: 3923: 3916: 3914: 3908: 3906: 3903: 3901: 3898: 3896: 3893: 3891: 3885: 3883: 3880: 3878: 3872: 3871: 3869: 3865: 3858: 3857: 3850: 3848: 3842: 3840: 3834: 3832: 3822: 3820: 3813: 3811: 3808: 3806: 3800: 3798: 3792: 3790: 3784: 3783: 3781: 3777: 3772: 3765: 3760: 3758: 3753: 3751: 3746: 3745: 3742: 3733: 3727: 3720: 3717: 3713: 3710: 3706: 3700:WĂ€rtsilĂ€ Low 3696: 3678: 3677: 3669: 3658: 3657: 3650: 3642: 3638: 3634: 3628: 3624: 3617: 3615: 3613: 3611: 3597: 3591: 3587: 3583: 3579: 3575: 3568: 3560: 3554: 3547: 3546: 3539: 3531: 3527: 3523: 3519: 3515: 3511: 3507: 3503: 3499: 3495: 3488: 3480: 3476: 3471: 3466: 3462: 3458: 3454: 3450: 3446: 3439: 3432: 3427: 3420: 3415: 3406: 3398: 3394: 3390: 3386: 3382: 3378: 3374: 3370: 3363: 3355: 3351: 3347: 3343: 3339: 3335: 3331: 3327: 3323: 3319: 3316:(8): 084310. 3315: 3311: 3304: 3296: 3292: 3288: 3284: 3277: 3259: 3258: 3250: 3242: 3238: 3234: 3230: 3226: 3222: 3215: 3207: 3203: 3196: 3188: 3187: 3179: 3177: 3168: 3161: 3155: 3141: 3137: 3131: 3117: 3113: 3106: 3092: 3088: 3081: 3070: 3069: 3061: 3053: 3049: 3045: 3041: 3037: 3033: 3026: 3018: 3014: 3010: 3006: 3002: 2998: 2991: 2976: 2971: 2967: 2963: 2959: 2955: 2948: 2941: 2932: 2927: 2923: 2919: 2915: 2911: 2907: 2903: 2899: 2892: 2890: 2881: 2877: 2873: 2869: 2865: 2861: 2857: 2853: 2849: 2845: 2837: 2829: 2825: 2820: 2815: 2811: 2807: 2803: 2796: 2782: 2778: 2768: 2760: 2756: 2752: 2746: 2742: 2735: 2727: 2721: 2717: 2710: 2708: 2706: 2697: 2696: 2688: 2680: 2676: 2672: 2666: 2662: 2655: 2653: 2641: 2634: 2626: 2622: 2618: 2614: 2609: 2604: 2600: 2596: 2592: 2588: 2584: 2573: 2565: 2559: 2555: 2554: 2546: 2544: 2535: 2531: 2527: 2523: 2516: 2514: 2512: 2503: 2497: 2493: 2492: 2484: 2482: 2480: 2475: 2468: 2464: 2454: 2447: 2442: 2438: 2427: 2420: 2416: 2412: 2407: 2405: 2399: 2392: 2388: 2384: 2380: 2374: 2367: 2363: 2354: 2352: 2346: 2337: 2327: 2317: 2307: 2298: 2291: 2285: 2278: 2272: 2263: 2254: 2247: 2243: 2239: 2235: 2227: 2218: 2214: 2200: 2146: 2135: 2109: 2096: 2089: 2085: 2070: 2069:nitrous oxide 2045: 2036: 2022: 2016: 2007: 1998: 1981: 1973: 1969: 1960: 1935: 1927: 1923: 1916: 1910: 1903: 1900: 1896: 1893:and also the 1892: 1888: 1882: 1875: 1866: 1862: 1856: 1849: 1847: 1843: 1837: 1830: 1825: 1812: 1808: 1801: 1797: 1785: 1781: 1777: 1773: 1748: 1744: 1735: 1728: 1722: 1713: 1709: 1695: 1689: 1680: 1671: 1658: 1654: 1647: 1643: 1633: 1624: 1615: 1614: 1613: 1609: 1602: 1597: 1581: 1575: 1566: 1553: 1549: 1543: 1537: 1528: 1519: 1510: 1498: 1491: 1487: 1480: 1476: 1469: 1468: 1467: 1465: 1459: 1446: 1444: 1440: 1436: 1432: 1428: 1424: 1420: 1414: 1406: 1404: 1397: 1388: 1380: 1376: 1360: 1354: 1347: 1343: 1342:fertilization 1340: 1331: 1327: 1318: 1309: 1300: 1296: 1287: 1278: 1269: 1265: 1255: 1241: 1235: 1214: 1210: 1209:thunderstorms 1206: 1192: 1168: 1167: 1166: 1164: 1160: 1130: 1129: 1128: 1084: 1083: 1082: 1080: 1062: 1029: 1028: 1027: 1018: 1009: 988: 987: 986: 972: 970: 965: 963: 957: 950: 946: 940: 927: 920: 913: 911: 881: 877: 872: 867: 864: 857: 856: 853: 851: 850: 845: 844: 839: 838: 831: 812: 803: 801: 795: 788: 787: 782: 781: 749: 742: 740: 716: 706: 692: 678: 674: 667: 639: 620: 619: 612: 605: 603: 583: 575: 567: 553: 545: 532: 531: 524: 517: 515: 497: 489: 475: 467: 459: 448: 447: 440: 433: 431: 409: 406: 403: 399: 392: 383: 377: 369: 356: 355: 352: 349: 340: 329: 318: 314: 310: 297: 290: 285: 283: 279: 275: 271: 267: 257: 248: 223: 208: 204: 200: 194: 187: 184: 174: 167: 164: 156: 154: 150: 138: 137:nitrous oxide 132: 125: 123: 117: 110: 106: 102: 98: 92: 85: 83: 79: 75: 71: 70:air pollution 67: 56: 48: 44: 41: 33: 26: 22: 4439:(a strongly 4433: 4421: 4397: 4257: 3852: 3731: 3726: 3704: 3695: 3684:. Retrieved 3675: 3668: 3655: 3649: 3622: 3599:, retrieved 3577: 3567: 3544: 3538: 3500:(1): 40–45. 3497: 3493: 3487: 3452: 3448: 3438: 3426: 3414: 3405: 3372: 3368: 3362: 3313: 3309: 3303: 3286: 3282: 3276: 3265:. Retrieved 3256: 3249: 3224: 3220: 3214: 3205: 3201: 3195: 3184: 3166: 3154: 3143:. Retrieved 3139: 3130: 3119:. Retrieved 3115: 3105: 3094:. Retrieved 3091:www.eesi.org 3090: 3080: 3067: 3060: 3035: 3031: 3025: 3000: 2996: 2990: 2979:. Retrieved 2960:(14): 3823. 2957: 2953: 2940: 2931:10754/552104 2905: 2901: 2847: 2843: 2836: 2809: 2805: 2795: 2784:. Retrieved 2767: 2740: 2734: 2715: 2694: 2687: 2660: 2633: 2590: 2586: 2572: 2552: 2525: 2521: 2490: 2462: 2452: 2436: 2425: 2408: 2397: 2372: 2360: 2344: 2335: 2325: 2315: 2305: 2296: 2283: 2270: 2261: 2252: 2232: 2225: 2212: 2145:nitrous acid 2094: 2090: 2083: 2043: 2034: 2014: 2005: 1996: 1979: 1974: 1967: 1958: 1933: 1928: 1921: 1908: 1891:nitrosamines 1880: 1876: 1874:and oxygen. 1859:reacts with 1854: 1850: 1840:reacts with 1835: 1831: 1823: 1818: 1806: 1754: 1742: 1733: 1720: 1714: 1707: 1694:free radical 1687: 1678: 1669: 1664: 1652: 1639: 1607: 1598: 1573: 1564: 1559: 1547: 1541: 1535: 1526: 1517: 1508: 1503: 1496: 1485: 1474: 1457: 1452: 1431:tulip poplar 1412: 1407: 1395: 1386: 1381: 1374: 1352: 1339:Agricultural 1337: 1325: 1316: 1307: 1301: 1294: 1285: 1276: 1270: 1263: 1253: 1233: 1205:Nitric oxide 1203: 1190: 1156: 1109: 1051: 1019: 1005: 995:+ OH (+M) → 978: 966: 955: 938: 933: 925: 914: 847: 841: 835: 829: 804: 793: 784: 778: 754: 743: 606: 518: 434: 350: 313:steady state 295: 286: 263: 203:nitrous acid 192: 182: 178: 172: 162: 158: 157: 130: 126: 115: 109:hydrocarbons 90: 86: 47:nitric oxide 39: 35: 29: 3455:(7): A288. 2246:hydrocarbon 2199:nitric acid 2108:nitric acid 1887:nitroarenes 1846:nitric acid 1466:processes: 1240:nitric acid 1059:is quickly 1008:Nitric acid 783:. Equation 755:The symbol 291:, the term 266:endothermic 199:nitric acid 4455:Categories 3686:2018-11-17 3601:2018-11-15 3267:2023-12-27 3208:: 577–628. 3145:2018-11-05 3121:2019-01-27 3116:News at IU 3096:2018-10-18 2981:2016-05-31 2786:2007-12-26 2471:References 2441:technology 2432:Bowin low 2364:(SCR) and 2021:photolysis 1798:) and CN ( 1569:refers to 1464:combustion 1146:(liq) → 2 1061:photolyzed 105:combustion 3709:Solutions 3641:162128929 3514:0944-1344 3397:155726862 3389:0010-2202 3338:0021-9606 3038:: 37–50. 2872:0167-7764 2828:2198-6592 2759:162128886 2679:929985467 2528:: 113–8. 2234:Biodiesel 1902:mutations 1776:diradical 1642:Zeldovich 1630:⇌ NO + O 1427:sassafras 1213:lightning 1159:acid rain 865:τ 813:τ 805:The time 560:⟶ 482:⟶ 404:λ 387:⟶ 384:ν 282:lightning 177:plus the 151:and high 122:lightning 78:acid rain 4206: / 4169: / 4153: / 4124: / 4108: / 4101: / 4076: / 4064: / 4033: / 4021: / 4009: / 3982: / 3882:>C=NR 3779:Hydrides 3771:Nitrogen 3719:WĂ€rtsilĂ€ 3712:Archived 3530:42621955 3522:24234471 3479:18629329 3354:28863540 3241:98781153 3189:: 53–56. 3052:22290176 3017:98109580 2880:91569139 2617:19713491 1782:), HCN ( 1774:), NCN ( 1560:Thermal 1504:Thermal 1470:thermal 1077:to form 1063:back to 328:sunshine 205:(HONO), 97:nitrogen 4229:Halides 3867:Organic 3773:species 3470:2453175 3346:1377972 3318:Bibcode 2962:Bibcode 2910:Bibcode 2852:Bibcode 2625:2100618 2595:Bibcode 2587:Science 1842:ammonia 1780:nitrene 1556:Thermal 1492:prompt 1443:hickory 1403:nitrate 1195:Sources 1179:O → HNO 1169:2  1163:nitrate 1095:(+M) → 964:(PAN). 311:are in 284:flash. 245:), and 103:during 64:), the 4443:oxide) 4441:acidic 3972:Oxides 3721:, 2008 3639:  3629:  3592:  3555:  3528:  3520:  3512:  3477:  3467:  3395:  3387:  3352:  3344:  3336:  3239:  3050:  3015:  2878:  2870:  2826:  2757:  2747:  2722:  2677:  2667:  2623:  2615:  2560:  2498:  2417:) and 2277:diesel 1990:· 1952:· 1944:· 1751:Prompt 1441:, and 1429:, and 1423:maples 1421:, the 969:asthma 413:  278:boiler 270:oxides 101:oxygen 53:) and 4411:, 0, 4103:(HON) 3887:-CONR 3680:(PDF) 3660:(PDF) 3549:(PDF) 3526:S2CID 3419:Ozone 3393:S2CID 3261:(PDF) 3237:S2CID 3163:(PDF) 3072:(PDF) 3048:S2CID 3013:S2CID 2950:(PDF) 2876:S2CID 2643:(PDF) 2621:S2CID 1917:when 1865:ozone 1800:cyano 1778:cyano 1626:N + O 1612:are: 1481:fuel 1439:beech 1183:+ HNO 1106:(+M). 1002:(+M), 934:When 339:ozone 309:ozone 233:ROONO 4466:Smog 4370:NHBr 4362:NHCl 4155:ONOO 3984:(NO) 3937:HNCS 3932:HNCO 3927:HOCN 3910:(CN) 3637:OCLC 3627:ISBN 3590:ISBN 3553:ISBN 3518:PMID 3510:ISSN 3475:PMID 3385:ISSN 3350:PMID 3342:OSTI 3334:ISSN 2868:ISSN 2824:ISSN 2755:OCLC 2745:ISBN 2720:ISBN 2675:OCLC 2665:ISBN 2613:PMID 2558:ISBN 2496:ISBN 2415:FLOX 2385:and 2379:urea 2242:soot 1727:char 1661:Fuel 1542:feed 1222:and 1153:(aq) 1090:+ NO 1039:→ NO 949:smog 943:and 407:< 226:RONO 99:and 76:and 74:smog 4431:, 4378:NHI 4354:NHF 4308:BrN 4300:ClN 4276:NBr 4268:NCl 4264:(?) 4175:NOO 4139:NNO 4099:HNO 4059:HNO 4035:(NO 4004:HNO 3959:-NO 3954:-NO 3922:NCN 3900:HCN 3895:-CN 3859:(?) 3582:doi 3502:doi 3465:PMC 3457:doi 3453:116 3377:doi 3373:191 3326:doi 3314:147 3291:doi 3229:doi 3040:doi 3005:doi 2970:doi 2926:hdl 2918:doi 2906:115 2860:doi 2814:doi 2603:doi 2591:326 2530:doi 2526:140 2203:HNO 2112:HNO 2050:HNO 2023:of 1899:DNA 1786:), 1462:in 1435:oak 1244:HNO 1175:+ H 1148:HNO 1140:+ H 1122:HNO 1043:+ O 1035:+ O 1012:HNO 997:HNO 852:): 846:)+( 802:. 410:398 348:). 287:In 256:). 251:HNO 220:), 30:In 25:Nox 4457:: 4435:+5 4429:+4 4427:, 4423:+3 4419:, 4417:+2 4415:, 4413:+1 4409:−1 4407:, 4405:−2 4403:, 4399:−3 4349:Cl 4345:NH 4324:NH 4316:IN 4292:FN 4284:NI 4258:NF 4249:NF 4241:NF 4236:NF 4180:NO 4164:NO 4160:HO 4151:NO 4147:HO 4091:NO 4078:NO 4066:NO 4028:NO 4023:NO 4011:NO 3980:NO 3942:CH 3905:CN 3874:NR 3853:NH 3836:HN 3819:OH 3815:NH 3802:NH 3794:NH 3786:NH 3702:NO 3635:. 3609:^ 3588:, 3576:, 3524:. 3516:. 3508:. 3496:. 3473:. 3463:. 3451:. 3447:. 3391:. 3383:. 3371:. 3348:. 3340:. 3332:. 3324:. 3312:. 3287:13 3285:. 3235:. 3223:. 3206:21 3204:. 3175:^ 3165:. 3138:. 3114:. 3089:. 3046:. 3036:48 3034:. 3011:. 3001:70 2999:. 2968:. 2956:. 2952:. 2924:. 2916:. 2904:. 2900:. 2888:^ 2874:. 2866:. 2858:. 2848:38 2846:. 2822:. 2808:. 2804:. 2779:. 2753:. 2704:^ 2673:. 2651:^ 2619:. 2611:. 2601:. 2589:. 2585:. 2542:^ 2524:. 2510:^ 2478:^ 2460:NO 2450:NO 2434:NO 2423:NO 2406:. 2395:NO 2393:. 2370:NO 2353:. 2342:NO 2333:NO 2323:NO 2313:NO 2303:NO 2294:NO 2281:NO 2268:NO 2259:NO 2250:NO 2223:NO 2210:NO 2170:NO 2163:NO 2156:NO 2149:NO 2138:NO 2127:NO 2119:RO 2101:NO 2092:NO 2081:NO 2057:NO 2041:NO 2032:NO 2025:NO 2012:NO 2003:NO 1994:NO 1986:HO 1977:NO 1965:NO 1956:NO 1948:RO 1940:HO 1931:NO 1919:NO 1906:NO 1889:, 1878:NO 1869:NO 1852:NO 1833:NO 1821:NO 1804:NO 1792:CN 1765:CH 1740:NO 1731:NO 1718:NO 1705:NO 1685:NO 1676:NO 1667:NO 1657:. 1650:NO 1605:NO 1571:NO 1562:NO 1545:NO 1533:NO 1524:NO 1515:NO 1506:NO 1494:NO 1483:NO 1472:NO 1455:NO 1437:, 1425:, 1410:NO 1393:NO 1384:NO 1372:NO 1350:NO 1323:NO 1314:NO 1305:NO 1292:NO 1283:NO 1274:NO 1261:NO 1251:NO 1231:NO 1171:NO 1127:, 1086:NO 1081:. 1072:NO 1065:NO 1054:NO 1031:NO 1021:NO 990:NO 980:NO 953:NO 936:NO 891:NO 827:NO 791:NO 713:NO 658:NO 636:NO 564:NO 557:NO 417:nm 390:NO 366:NO 343:NO 332:NO 321:NO 302:NO 293:NO 240:NO 201:, 190:NO 180:NO 170:NO 160:NO 155:. 128:NO 124:. 113:NO 88:NO 84:. 59:NO 51:NO 37:NO 34:, 4380:2 4372:2 4364:2 4356:2 4347:2 4339:2 4337:F 4335:2 4333:N 4328:F 4326:2 4318:3 4310:3 4302:3 4294:3 4286:3 4278:3 4270:3 4260:5 4251:3 4243:2 4217:3 4212:O 4210:2 4208:N 4203:4 4201:O 4199:2 4197:N 4195:4 4193:H 4185:4 4173:2 4171:O 4166:2 4162:2 4149:2 4141:2 4137:2 4135:H 4130:O 4128:2 4126:N 4119:2 4114:O 4112:2 4110:N 4105:2 4093:3 4083:2 4071:3 4061:3 4053:5 4051:O 4049:2 4047:N 4041:2 4039:) 4037:2 4030:2 4016:2 4006:2 3998:3 3996:O 3994:2 3992:N 3986:2 3961:2 3948:2 3946:N 3944:2 3920:2 3918:H 3912:2 3889:2 3876:3 3855:5 3846:3 3844:N 3838:3 3830:4 3828:H 3826:2 3824:N 3817:2 3810:N 3804:2 3796:4 3788:3 3763:e 3756:t 3749:v 3705:x 3689:. 3643:. 3584:: 3561:. 3532:. 3504:: 3498:2 3481:. 3459:: 3399:. 3379:: 3356:. 3328:: 3320:: 3297:. 3293:: 3270:. 3243:. 3231:: 3225:1 3148:. 3124:. 3099:. 3054:. 3042:: 3019:. 3007:: 2984:. 2972:: 2964:: 2958:7 2934:. 2928:: 2920:: 2912:: 2882:. 2862:: 2854:: 2830:. 2816:: 2810:2 2789:. 2777:" 2775:x 2761:. 2728:. 2681:. 2645:. 2627:. 2605:: 2597:: 2581:2 2566:. 2536:. 2532:: 2504:. 2463:x 2453:x 2437:x 2426:x 2413:( 2398:x 2373:x 2345:x 2336:x 2326:x 2316:x 2306:x 2297:x 2284:x 2271:x 2262:x 2253:x 2226:x 2213:x 2205:3 2201:( 2194:5 2192:O 2190:2 2188:N 2183:5 2181:O 2179:2 2177:N 2172:2 2165:3 2158:2 2151:3 2140:2 2129:2 2123:· 2121:2 2114:3 2110:( 2103:2 2095:x 2084:x 2077:O 2075:2 2073:N 2071:( 2063:3 2060:− 2055:/ 2052:3 2044:x 2035:x 2027:2 2015:x 2006:x 1997:x 1988:2 1980:x 1968:x 1959:x 1950:2 1942:2 1934:x 1922:x 1909:x 1881:x 1871:2 1855:x 1836:x 1824:x 1807:x 1794:( 1790:2 1788:H 1767:2 1760:2 1758:N 1743:x 1734:x 1721:x 1708:x 1700:2 1698:N 1688:x 1679:x 1670:x 1653:x 1628:2 1619:2 1617:N 1608:x 1593:2 1591:O 1586:2 1584:N 1574:x 1565:x 1548:x 1536:x 1527:x 1518:x 1509:x 1497:x 1486:x 1475:x 1458:x 1413:x 1396:x 1387:x 1375:x 1368:O 1366:2 1364:N 1353:x 1326:x 1317:x 1308:x 1295:x 1286:x 1277:x 1264:x 1254:x 1246:3 1242:( 1234:x 1226:2 1224:O 1219:2 1217:N 1185:3 1181:2 1177:2 1173:2 1150:3 1144:O 1142:2 1138:5 1136:O 1134:2 1132:N 1124:3 1117:5 1115:O 1113:2 1111:N 1103:5 1101:O 1099:2 1097:N 1092:3 1088:2 1074:2 1067:2 1056:3 1048:. 1045:2 1041:3 1037:3 1033:2 1023:2 1014:3 1010:( 999:3 992:2 982:2 956:x 939:x 919:) 917:5 915:( 895:] 887:[ 882:3 878:k 873:1 868:= 849:2 843:1 837:3 830:x 794:x 786:4 780:2 764:M 748:) 746:4 744:( 717:2 707:j 702:] 693:3 689:O 684:[ 679:3 675:k 668:= 661:] 655:[ 648:] 640:2 632:[ 611:) 609:3 607:( 584:2 580:O 576:+ 568:2 554:+ 546:3 542:O 523:) 521:2 519:( 501:M 498:+ 490:3 486:O 479:M 476:+ 468:2 464:O 460:+ 457:O 439:) 437:1 435:( 400:, 396:O 393:+ 381:h 378:+ 370:2 345:2 334:2 323:2 304:2 296:x 253:4 249:( 242:3 235:2 228:2 217:5 215:O 213:2 211:N 209:( 193:x 183:z 173:x 163:y 145:O 143:2 141:N 139:( 131:x 116:x 91:x 61:2 57:( 49:( 40:x 27:.

Index

nitrogen oxide
Nox
atmospheric chemistry
nitric oxide
nitrogen dioxide
nitrogen oxides
air pollution
smog
acid rain
tropospheric ozone
nitrogen
oxygen
combustion
hydrocarbons
lightning
nitrous oxide
ozone depletion
global warming potential
nitric acid
nitrous acid
dinitrogen pentoxide
peroxyacetyl nitrate
peroxynitric acid
endothermic
oxides
internal combustion engine
boiler
lightning
atmospheric chemistry
ozone

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