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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Salem Dahech, Abdelkarim Daoud, Gérard Beltrando
Formato: article
Lenguaje:DE
EN
FR
IT
PT
Publicado: Unité Mixte de Recherche 8504 Géographie-cités 2011
Materias:
Acceso en línea:https://doaj.org/article/db8b309840c04738bd393672b0f19daf
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:db8b309840c04738bd393672b0f19daf
record_format dspace
spelling oai:doaj.org-article:db8b309840c04738bd393672b0f19daf2021-12-02T11:20:02ZLes 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 SO21278-336610.4000/cybergeo.24701https://doaj.org/article/db8b309840c04738bd393672b0f19daf2011-10-01T00:00:00Zhttp://journals.openedition.org/cybergeo/24701https://doaj.org/toc/1278-3366The 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.Salem DahechAbdelkarim DaoudGérard BeltrandoUnité Mixte de Recherche 8504 Géographie-citésarticleurban expansionenvironmental inequalityair qualitySfaxGeography (General)G1-922DEENFRITPTCybergeo (2011)
institution DOAJ
collection DOAJ
language DE
EN
FR
IT
PT
topic urban expansion
environmental inequality
air quality
Sfax
Geography (General)
G1-922
spellingShingle urban expansion
environmental inequality
air quality
Sfax
Geography (General)
G1-922
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
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.
format article
author Salem Dahech
Abdelkarim Daoud
Gérard Beltrando
author_facet Salem Dahech
Abdelkarim Daoud
Gérard Beltrando
author_sort Salem Dahech
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_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_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_sort 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
publisher Unité Mixte de Recherche 8504 Géographie-cités
publishDate 2011
url https://doaj.org/article/db8b309840c04738bd393672b0f19daf
work_keys_str_mv AT salemdahech lesinegalitesspatialesdelaqualitedelairdanslagglomerationdesfaxetsesenvironslecasdestemperaturesdelabriseducoetso2
AT abdelkarimdaoud lesinegalitesspatialesdelaqualitedelairdanslagglomerationdesfaxetsesenvironslecasdestemperaturesdelabriseducoetso2
AT gerardbeltrando lesinegalitesspatialesdelaqualitedelairdanslagglomerationdesfaxetsesenvironslecasdestemperaturesdelabriseducoetso2
_version_ 1718396024766070784