Les inégalités spatiales de la qualité de l’air dans l’agglomération de Sfax et ses environs : Le cas Des températures, de la brise, du CO et SO2
The urban dynamics during the 20th century make it possible to understand the problems created by urban expansion (polluting industry on the littoral, clogging of the road traffic in the downtown area…) in the Sfax agglomeration. The urban heat island was detected using NOAA-AVHRR data and in parall...
| Main Authors: | , , |
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| Format: | Article |
| Language: | deu |
| Published: |
Unité Mixte de Recherche 8504 Géographie-cités
2011-10-01
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| Series: | Cybergeo |
| Subjects: | |
| Online Access: | https://journals.openedition.org/cybergeo/24701 |
| _version_ | 1797222867551649792 |
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| author | Salem Dahech Abdelkarim Daoud Gérard Beltrando |
| author_facet | Salem Dahech Abdelkarim Daoud Gérard Beltrando |
| author_sort | Salem Dahech |
| collection | DOAJ |
| description | The urban dynamics during the 20th century make it possible to understand the problems created by urban expansion (polluting industry on the littoral, clogging of the road traffic in the downtown area…) in the Sfax agglomeration. The urban heat island was detected using NOAA-AVHRR data and in parallel, air temperature and sea breeze velocity and direction was observed in some points in the city. All these observations show that the downtown area is considerably hotter than the suburbs (variation around 5°C) and sea breeze is strongly slowed down there because of the roughness of the city. These two factors create conditions of discomfort for the population. Monoxide carbon (CO) rate measurements, used here as tracers of pollution, were also carried out on several points in the agglomeration. It shows the major role of the urban traffic or, during some weather conditions, the establishments located in south Industrial Area (Chemical industry, waste incineration). The spatial extension of sulphur dioxide (SO2), obtained by digital model, by using weather parameters, shows the strong influence of the sea breeze on the space concentration and distribution of this polluting. |
| first_indexed | 2024-03-08T03:03:17Z |
| format | Article |
| id | doaj.art-db8b309840c04738bd393672b0f19daf |
| institution | Directory Open Access Journal |
| issn | 1278-3366 |
| language | deu |
| last_indexed | 2024-04-24T13:28:09Z |
| publishDate | 2011-10-01 |
| publisher | Unité Mixte de Recherche 8504 Géographie-cités |
| record_format | Article |
| series | Cybergeo |
| spelling | doaj.art-db8b309840c04738bd393672b0f19daf2024-04-04T09:33:53ZdeuUnité Mixte de Recherche 8504 Géographie-citésCybergeo1278-33662011-10-0110.4000/cybergeo.24701Les inégalités spatiales de la qualité de l’air dans l’agglomération de Sfax et ses environs : Le cas Des températures, de la brise, du CO et SO2Salem DahechAbdelkarim DaoudGérard BeltrandoThe urban dynamics during the 20th century make it possible to understand the problems created by urban expansion (polluting industry on the littoral, clogging of the road traffic in the downtown area…) in the Sfax agglomeration. The urban heat island was detected using NOAA-AVHRR data and in parallel, air temperature and sea breeze velocity and direction was observed in some points in the city. All these observations show that the downtown area is considerably hotter than the suburbs (variation around 5°C) and sea breeze is strongly slowed down there because of the roughness of the city. These two factors create conditions of discomfort for the population. Monoxide carbon (CO) rate measurements, used here as tracers of pollution, were also carried out on several points in the agglomeration. It shows the major role of the urban traffic or, during some weather conditions, the establishments located in south Industrial Area (Chemical industry, waste incineration). The spatial extension of sulphur dioxide (SO2), obtained by digital model, by using weather parameters, shows the strong influence of the sea breeze on the space concentration and distribution of this polluting.https://journals.openedition.org/cybergeo/24701Sfaxurban expansionenvironmental inequalityair quality |
| spellingShingle | Salem Dahech Abdelkarim Daoud Gérard Beltrando Les inégalités spatiales de la qualité de l’air dans l’agglomération de Sfax et ses environs : Le cas Des températures, de la brise, du CO et SO2 Cybergeo Sfax urban expansion environmental inequality air quality |
| title | Les inégalités spatiales de la qualité de l’air dans l’agglomération de Sfax et ses environs : Le cas Des températures, de la brise, du CO et SO2 |
| title_full | Les inégalités spatiales de la qualité de l’air dans l’agglomération de Sfax et ses environs : Le cas Des températures, de la brise, du CO et SO2 |
| title_fullStr | Les inégalités spatiales de la qualité de l’air dans l’agglomération de Sfax et ses environs : Le cas Des températures, de la brise, du CO et SO2 |
| title_full_unstemmed | Les inégalités spatiales de la qualité de l’air dans l’agglomération de Sfax et ses environs : Le cas Des températures, de la brise, du CO et SO2 |
| title_short | Les inégalités spatiales de la qualité de l’air dans l’agglomération de Sfax et ses environs : Le cas Des températures, de la brise, du CO et SO2 |
| title_sort | les inegalites spatiales de la qualite de l air dans l agglomeration de sfax et ses environs le cas des temperatures de la brise du co et so2 |
| topic | Sfax urban expansion environmental inequality air quality |
| url | https://journals.openedition.org/cybergeo/24701 |
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