Titre :
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Influence of population density and temporal variations in emissions on the air quality benefits of NOx emission trading. (2002)
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Auteurs :
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Carolyn-E NOBEL ;
David-T ALLEN ;
Yosuke KIMURA ;
Katherine-E LUMBLEY ;
Elena-C MCDONALD-BULLER ;
Center for Energy and Environmental Resources. The University of Texas at Austin. Mis R7100. Austin. TX. USA
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Type de document :
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Article
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Dans :
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Environmental science & technology (vol. 36, n° 16, 2002)
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Pagination :
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3465-3473
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Langues:
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Anglais
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Mots-clés :
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Etats Unis
;
Amérique
;
Pollution atmosphérique
;
Amérique du Nord
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Résumé :
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[BDSP. Notice produite par INIST-CNRS aR0xFZ2k. Diffusion soumise à autorisation]. Ozone formation is a complex function of local hydrocarbon and nitrogen oxide emissions. Therefore, trading of NOx emissions among geographically distributed facilities can lead to more or less ozone formation than across-the-board reductions. Monte Carlo simulations of trading scenarios involving 51 large NOx point sources in eastern Texas were used in a previous study by the authors to assess the effects of trading on air quality benefits, as measured by changes in ozone concentrations. The results indicated that 12% of trading scenarios would lead to greater than a 25% variation from conventional across-the-board reductions when air quality benefits are based only on changes in ozone concentration. The current study found that when benefits are based on a metric related to population exposure to ozone, two-thirds of the trading scenarios lead to changes in air quality benefits of approximately 25%. Variability in air quality benefits is not as strongly dependent on the temporal distribution of NOx emissions.
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