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Titolo:
Evaporative traffic hydrocarbon emissions, traffic CO and speciated HC traffic emissions from the city of Athens
Autore:
Kourtidis, KA; Ziomas, IC; Rappenglueck, B; Proyou, A; Balis, D;
Indirizzi:
Aristotelian Univ Salonika, Lab Atmospher Phys, GR-54006 Salonika, Greece Aristotelian Univ Salonika Salonika Greece GR-54006 006 Salonika, Greece Univ Munich, Chair Imiss Res, D-85354 Freising, Germany Univ Munich Freising Germany D-85354 miss Res, D-85354 Freising, Germany
Titolo Testata:
ATMOSPHERIC ENVIRONMENT
fascicolo: 23, volume: 33, anno: 1999,
pagine: 3831 - 3842
SICI:
1352-2310(199910)33:23<3831:ETHETC>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
SMOG REACTION-MECHANISMS; MEDCAPHOT-TRACE; ORGANIC-COMPOUNDS; OZONE FORMATION; UNITED-STATES; CHEMISTRY; ATMOSPHERE; AEROSOLS; ALKANES; GREECE;
Keywords:
hydrocarbons; traffic emissions; evaporative emissions;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Physical, Chemical & Earth Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Kourtidis, KA Aristotelian Univ Salonika, Lab Atmospher Phys, Campus Box 149, GR-54006 Salonika, Greece Aristotelian Univ Salonika Campus Box 149 Salonika Greece GR-54006
Citazione:
K.A. Kourtidis et al., "Evaporative traffic hydrocarbon emissions, traffic CO and speciated HC traffic emissions from the city of Athens", ATMOS ENVIR, 33(23), 1999, pp. 3831-3842

Abstract

Quasi-continuous measurements of NOx, CO and C-5-C-12 hydrocarbons made during the MEDCAPHOT-TRACE experiment in a street canyon with heavy traffic load were used to estimate the CO/NOx and 36 individual NMHC/NOx traffic emission ratios in the Athens basin. A traffic emission inventory has been compiled for Athens and aspects of this inventory were tested against measurements. The results indicate that although the main features of the 9:00 to 15:00 variations of the NMHC/NOx and CO/NOx inventory emission ratios are inagreement with observations, during the rest of the day the fine structureof the variations of these ratios cannot be accurately predicted by the inventory. Comparison of pollutant emission ratios derived from ambient measurements with emission ratios predicted by existing inventories for Athens reveals serious discrepancies. Further, the experimental results and theoretical considerations indicate that the speciation of evaporative emissions changes with increasing ambient temperature in favour of the most volatile HC species, thus changing the speciation of traffic emissions during the course of the day. This is an aspect that is not taken into account in presenturban photochemical modelling inventories. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

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Documento generato il 01/10/20 alle ore 04:25:55