Study of car emissions in the Athens Restriction Ring from the mid 1980s to 2007 with a prediction scenario for 2011 using air quality indices
| Autor: | A Loster-Manka, M Jedziniak, K Karkalis, G Arapis |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | The Sustainable World. |
| ISSN: | 1743-3541 1746-448X |
| DOI: | 10.2495/sw100531 |
| Popis: | This paper's primary objective is analyzing the change in automobile emissions from 1986-2007 and the subsequent impact on the general atmospheric conditions in the city of Athens (Greece) in correlation with the Athens Traffic Restriction Ring. Observations of vehicle fleet increments in the city of Athens from the mid 1980s to 2007 were made at the first stage, and related impact on atmospheric conditions were assessed. Based on this data, a possible car fleet number in 2011 was predicted at the second stage. No significant increments of the traffic flow inside the Athens Restriction Ring were shown after different traffic volume data for 1986-2007 was obtained and elaborated on. However a traffic volume (number of vehicles) increment was found in observation points outside the Ring. Despite the fact that the number of vehicles remained constant inside the Ring due to new technology, concentrations of particular pollutants (CO, NO, NO2, SO2, and PM10) decreased. Most of the time, such decreases are not sufficient to keep pollution levels in compliance with EU legislation limits. The trend line obtained while using traffic volume data for 1986-2007 was used as the basis for predicting the year 2011. There will be no change in the number of cars inside the Athens Restriction Ring for the year 2011. However a traffic volume increment is shown for the trend outside the Ring in the next two years. A strong correlation between vehicle emissions and pollution concentrations was found through the use of COPERT IV, at a factor of 0.91. |
| Databáze: | OpenAIRE |
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