Photochemical ozone formation in propylene-nitrogen oxide-dry air system

Akimoto, Hajime; Sakamaki, Fumio; Hoshino, Mikio; Inoue, Gen; Okuda, Michio

doi:10.1021/es60149a005

Cited by 30 publications

(54 citation statements)

References 9 publications

(10 reference statements)

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“…As shown in Fig. 7.9, the O 3 concentrations finally reached are almost independent of C 3 H 6 and is approximately proportional to the square root of the initial concentration of NO x (Akimoto et al 1979b), which is well reproduce by the model calculation (Sakamaki et al 1982). Similarly, it was confirmed that [O 3 ] max is proportional to square root of photolysis rate constant of NO 2 , j 7.44 , by the experiments and the model calculations (Sakamaki et al 1982 (Sakamaki et al 1982).…”

Section: Column 2 Photochemical Smog Chambersupporting

confidence: 76%

“…7.8. This figure shows the change of concentrations of each compound when 34 ppbv of NO x (NO 33 ppbv, NO 2 1 ppbv) and 100 ppbv of propylene (C 3 H 6 ) are irradiated by the solar simulator (Akimoto et al 1979b). From the figure, the features of NO to NO 2 oxidation, formation of O 3 in much higher concentration than the initial concentration of NO x and the decay of C 3 H 6 can be seen.…”

Section: Column 2 Photochemical Smog Chambermentioning

confidence: 94%

“…Fig. 7.8 Time profiles of the mixing ratios of C 3 H 6 , NO, NO x À NO and O 3 in the irradiation of the mixture of C 3 H 6 ,and NO x in air in the smog chamber (Adapted from Akimoto et al 1979b) In Fig. 7.8, it took nearly 10 hours for O 3 to reach its maximum, but it is generally known that the O 3 formation rate is roughly proportional to VOC concentration (Akimoto and Sakamaki 1983).…”

Section: Column 2 Photochemical Smog Chambermentioning

confidence: 99%

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Tropospheric Reaction Chemistry

Akimoto

2016

Springer Atmospheric Sciences

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About 90 % of the main constituents of earth's atmosphere (nitrogen and oxygen), and most atmospheric trace constituents exists in the troposphere. Almost all trace species found in the troposphere are substances emitted from anthropogenic and/or natural sources on the ground, and from volcanoes and aircraft into the free troposphere. The exceptions are O 3 and other secondary products formed by the chemical reactions in the atmosphere, or produced by lightning such as NO. Tropospheric chemistry is a research field for studying a series of processes as a system, including the identification and quantification of emission sources, chemical reactions and transport in the atmosphere, transformation from the gas phase molecules to liquid and/or solid particles, and deposition to clouds and fog, raindrops, and earth surface. Tropospheric chemistry is the most important fundamental discipline for various air pollution issues on the global, regional and urban scales that affect the social life of human beings. For the integrated management of air pollution global warming/climate change, atmospheric chemistry, particularly tropospheric chemistry, provides important scientific knowledge together with atmospheric physics and meteorology. As for atmospheric /tropospheric chemistry as a holistic system science, many textbooks have been published in recent decades (for example,

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Section: Column 2 Photochemical Smog Chambersupporting

confidence: 76%

Section: Column 2 Photochemical Smog Chambermentioning

confidence: 94%

Section: Column 2 Photochemical Smog Chambermentioning

confidence: 99%

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Tropospheric Reaction Chemistry

Akimoto

2016

Springer Atmospheric Sciences

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“…10 Incorporating these features, a semi-empirical model relating ozone maximum concentrations to precursor emissions was derived using outdoor smog chamber data and the results of air quality model simulations. 6 In the NO x -limited regime, the following relationship was obtained: (15) where (NO X E) represents NO X emissions that have been received by the air mass and expressed as an effective concentration at the time of ozone maximum.…”

Section: A Modified Version Of the Smog Production Modelmentioning

confidence: 99%

Assessing Ozone-Precursor Relationships Based on a Smog Production Model and Ambient Data

Chang

Suzio

1995

Journal of the Air & Waste Management Association

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A semi-empirical model, Johnson's smog production model (SFM), which relates precursor emissions to ozone levels and estimates the relative effectiveness of volatile organic compounds (VOC) and NO X emission controls, has been evaluated and a modified version of SPM has been introduced. Both versions have been applied to routine data from 1989-1991 in five areas in the United States. In particular, extent parameters, which reveal the relative merit of VOC and NO X controls in reducing high ozone levels, have been calculated. Preliminary applications of SPM reveal interesting features with respect to VOC vs. NO X controls in reducing high ozone levels. For hourly data with ozone >0.08 ppm, distributions of extent parameters resulting from the modified SPM show the effectiveness of VOC controls at more monitoring sites than those from Johnson's SPM; however, relative features between the two versions are similar. On the other hand, for hourly data with ozone >0.12 ppm, the two SPM versions show very similar relative effectiveness of VOC and NO X controls with chosen values of model parameters. To improve the credibility of SPM, the range of validity of relationships between maximum smog produced or maximum ozone and NO X concentrations must be determined, and the parameters in these relationships must be better determined for typical VOC mixtures. Another essential parameter, which determines the fractional loss of NO y (NO and its oxidation products) from the gas phase must be better determined.

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“…Subsequently they have been the subject of intense kinetic investigations and kinetic modelling. Recent work and review on this aspect of the photosmog mechanism have been published by Falls & Seinjeld [2], Akimoto et al [3], Adashi et al [4], Pitts & Finlayson-Pitts [ 5 ] and others. Mechanism and kinetics of complex reaction product formation appear nevertheless comparatively little investigated in spite of the fact that they involve some of the most effective irritants like peroxyacetyl nitrate (PAN) and peroxybenzoyl nitrate (PBN).…”

mentioning

confidence: 99%

Linear‐Reactor‐IR.‐Matrix and Microwave Spectroscopy of the System O₃/NO₂/(Z)‐2‐Butene

Dommen¹,

Förster²,

Ruprecht³

et al. 1982

Helvetica Chimica Acta

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SummaryInvestigation of the formation of complex reaction products in the gas-phase system 03/NOz/(Z)-2-butene by combination of linear reactors with IR. matrix and microwave Stark spectroscopy is reported. Besides the polyatomic products observed earlier in the gas-phase ozonolysis of (Z)-2-butene, the following products were identified: N205, HNO,, HN04, CH3N02, CH30N0, CH3COON02 and CH3C002N02 (peroxyacetyl nitrate, PAN). Matrix IR. spectra of N205, HNO,, CH3COON0, CH3COON02 required for reference purposes are presented. It is shown that PAN-formation occurs already in the absence of light. A reaction scheme is proposed for explanation of the observed complex NO,-containing products, which assumes methyldioxirane as a central intermediate. Particular reaction steps of the scheme will be discussed, including thermochemical estimates of reaction enthalpies.

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Photochemical ozone formation in propylene-nitrogen oxide-dry air system

Cited by 30 publications

References 9 publications

Tropospheric Reaction Chemistry

Tropospheric Reaction Chemistry

Assessing Ozone-Precursor Relationships Based on a Smog Production Model and Ambient Data

Linear‐Reactor‐IR.‐Matrix and Microwave Spectroscopy of the System O₃/NO₂/(Z)‐2‐Butene

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Photochemical ozone formation in propylene-nitrogen oxide-dry air system

Cited by 30 publications

References 9 publications

Tropospheric Reaction Chemistry

Tropospheric Reaction Chemistry

Assessing Ozone-Precursor Relationships Based on a Smog Production Model and Ambient Data

Linear‐Reactor‐IR.‐Matrix and Microwave Spectroscopy of the System O3/NO2/(Z)‐2‐Butene

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Linear‐Reactor‐IR.‐Matrix and Microwave Spectroscopy of the System O₃/NO₂/(Z)‐2‐Butene