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Titolo:
MODELING OF OZONE FORMATION AT A RURAL SITE IN SOUTHERN ONTARIO
Autore:
PLUMMER DA; MCCONNELL JC; SHEPSON PB; HASTIE DR; NIKI H;
Indirizzi:
YORK UNIV,CTR ATMOSPHER CHEM N YORK ON M3J 1P3 CANADA YORK UNIV,CTR RES EARTH & SPACE SCI N YORK ON M3J 1P3 CANADA
Titolo Testata:
Atmospheric environment
fascicolo: 12, volume: 30, anno: 1996,
pagine: 2195 - 2217
SICI:
1352-2310(1996)30:12<2195:MOOFAA>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
NATURAL HYDROCARBONS; PEROXY-RADICALS; BOUNDARY-LAYER; NIWOT RIDGE; GAS-PHASE; TROPOSPHERE; CHEMISTRY; NITRATES; COLORADO; IMPACTS;
Keywords:
TROPOSPHERIC OZONE; MODELING; RURAL OXIDANTS; ONTARIO;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
D.A. Plummer et al., "MODELING OF OZONE FORMATION AT A RURAL SITE IN SOUTHERN ONTARIO", Atmospheric environment, 30(12), 1996, pp. 2195-2217

Abstract

A one-dimensional time-dependent photochemical diffusion model has been used to simulate the chemical and vertical transport processes occurring at a rural location within Southern Ontario. The model output has been compared with the extensive measurements of several atmospherictrace gases which were made at a rural site in Southern Ontario as part of SONTOS (Southern Ontario Oxidant Study) during the summer of 1999 In particular, the measurements include various VOCs, odd nitrogen components and RO(x) which have been explicitly included in the model. For the case examined, observations at the site are typical of unpolluted background conditions and the model is able to reproduce the observed variation of many of the key trace gas species observed. Though the site is remote from large population centers there appear to be important local emissions of NOx and non-methane hydrocarbons (NMHC). Modelling results suggest that For the day studied approximately 10 ppb ofozone was photochemically produced, and that the production of ozone was limited by the availability of NOx (NO + NO2). At the observed levels isoprene does not play a major role in the production of ozone. A comparison of observations and model calculations for peroxy radical and HNO3 concentrations indicate a disagreement between the model and measurements. Copyright (C) 1996 Elsevier Science Ltd

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Documento generato il 03/04/20 alle ore 04:28:12