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Titolo:
Ozone response to precursor controls: comparison of data analysis methods with the predictions of photochemical air quality simulation models
Autore:
Blanchard, CL; Stoeckenius, T;
Indirizzi:
Envair, Albany, CA 94706 USA Envair Albany CA USA 94706Envair, Albany, CA 94706 USA Environ Int Corp, Novato, CA 94945 USA Environ Int Corp Novato CA USA 94945 viron Int Corp, Novato, CA 94945 USA
Titolo Testata:
ATMOSPHERIC ENVIRONMENT
fascicolo: 7, volume: 35, anno: 2001,
pagine: 1203 - 1215
SICI:
1352-2310(2001)35:7<1203:ORTPCC>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
REACTIVE NITROGEN; UNITED-STATES; AMBIENT DATA;
Keywords:
peak ozone; VOC emissions; NOx emissions; ozone response; model corroboration;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Physical, Chemical & Earth Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Blanchard, CL Envair, 526 Cornell Ave, Albany, CA 94706 USA Envair 526 Cornell Ave Albany CA USA 94706 any, CA 94706 USA
Citazione:
C.L. Blanchard e T. Stoeckenius, "Ozone response to precursor controls: comparison of data analysis methods with the predictions of photochemical air quality simulation models", ATMOS ENVIR, 35(7), 2001, pp. 1203-1215

Abstract

Comparisons were made between the predictions of six photochemical air quality simulation models (PAQSMs) and three indicators of ozone response to emission reductions: the ratios of O-3/NOz and O-3/NOy and the extent of reaction. The values of the two indicator ratios and the extent of reaction were computed from the model-predicted mixing ratios of ozone and oxidized nitrogen species and were compared to the changes in peak 1 and 8 h ozone mixing ratios predicted by the PAQSMs. The ozone changes were determined from the ozone levels predicted for base-case emission levels and for reduced emissions of volatile organic compounds (VOCs) and oxides of nitrogen (NO,). For all simulations, the model-predicted responses of peak 1 and 8 h ozone mixing ratios to VOC or NOx emission reductions were correlated with the base-case extent of reaction and ratios of O-3/NOz and O-3/NOy. Peak ozone values increased following NO, control in 95% (median over all simulations) of the high-ozone (>80 ppbv hourly mixing ratio in the base-case) grid cellshaving mean afternoon O-3/NOz ratios less than 5:1, O-3/NOy less than 4:1,or extent less than 0.6. Peak ozone levels decreased in response to NO, reductions in 95% (median over all simulations) of the grid cells having peakhourly ozone mixing ratios greater than 80 ppbv and where mean afternoon O-3/NOz exceeded 10: 1, O-3/NOy was greater than 8 : 1, or extent exceeded 0.8. Ozone responses varied in grid cells where O-3/NOz was between 5:1 and 10:1, O-3/NOy was between 4: 1 and 8: 1, or extent was between 0.6 and 0.8. The responses in such grid cells were affected by ozone responses in upwind grid cells and by the changes in ozone levels along the upwind boundariesof the modeling domains. (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 02/06/20 alle ore 01:10:40