 |
| Titel |
Impacts of using reformulated and oxygenated fuel blends on the regional air quality of the upper Rhine valley |
| VerfasserIn |
J.-F. Vinuesa, Ph. Mirabel, J.-L. Ponche |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 6, no. 8 ; Nr. 6, no. 8 (2006-06-20), S.2161-2176 |
| Datensatznummer |
250003925
|
| Publikation (Nr.) |
 copernicus.org/acp-6-2161-2006.pdf |
|
|
|
|
|
| Zusammenfassung |
| The effects of using three alternative gasoline fuel blends on regional air
quality of the upper Rhine valley have been investigated. The first of the
tested fuels is oxygenated by addition of ethyl-tertio-butyl ether (ETBE),
the second is based on a reformulation of its composition and the third on is
both oxygenated and reformulated. The upper Rhine valley is a very sensitive
region for pollution episodes and several meteorological and air quality
studies have already been performed. High temporal and spatial emission
inventories are available allowing relevant and realistic modifications of
the emission inventories. The calculation period, i.e., 11 May 1998,
corresponds to a regional photochemical ozone pollution episode during which
ozone concentrations exceeded several times the information threshold of the
ozone directive of the European Union (180 μg m-3 as 1 hourly
average). New emission inventories are set up using specific emission factors
related to the alternative fuels by varying the fraction of gasoline
passenger cars (from 50% to 100%) using the three fuel blends. Then air
quality modeling simulations are performed using these emission inventories
over the upper Rhine valley. The impact of alternative fuels on regional air
quality is evaluated by comparing these simulations with the one using a
reference emission inventory, e.g., where no modifications of the fuel
composition are included. The results are analyzed by focusing on peak levels
and daily averaged concentrations. The use of the alternative fuels leads to
general reductions of ozone and volatile organic compounds (VOC) and
increases of NOx levels. We found different behaviors related to the
type of the area of concern i.e. rural or urban. The impacts on ozone are
enhanced in urban areas where 15% reduction of the ozone peak and daily
averaged concentrations can be reached. This behavior is similar for the
NOx for which, in addition, an increase of the levels can be noted in
urban plumes over rural areas. The most important decreases of the total
VOC levels are mainly located over rural areas (more than 5%
reduction of the levels except in urban plumes). By comparing these results
with those from a local study related to the air quality of Strasbourg, we
estimate that the regional contribution to the urban air quality of
Strasbourg allows an enhancement of the results by using alternative fuel
blends at the regional scale. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|