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Academic literature on the topic 'Polluants inorganiques – Variations saisonnières'
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Journal articles on the topic "Polluants inorganiques – Variations saisonnières"
Kemmou, Souad, Jamal-Eddine Dafir, Mohamed Wartiti, and Mohamed Taoufik. "Variations saisonnières et mobilité potentielle du phosphore sédimentaire de la retenue de barrage Al Massira (Maroc)." Water Quality Research Journal 41, no. 4 (November 1, 2006): 427–36. http://dx.doi.org/10.2166/wqrj.2006.046.
Full textAsslouj, Jaouad El, Sanae Kholtei, Namira El Amrani-Paaza, and Abderrauf Hilali. "Impact des activités anthropiques sur la qualité des eaux souterraines de la communauté Mzamza (Chaouia, Maroc)**." Revue des sciences de l'eau 20, no. 3 (October 1, 2007): 309–21. http://dx.doi.org/10.7202/016505ar.
Full textDissertations / Theses on the topic "Polluants inorganiques – Variations saisonnières"
Moustafa, Ahmad. "Caractérisation chimique (minérale et organique) des lixiviats issus de la décharge des déchets à Tripoli-Liban." Electronic Thesis or Diss., Université de Lille (2018-2021), 2021. http://www.theses.fr/2021LILUR008.
Full textThe global production of waste is increasing rapidly, posing a source of threat to living beings, human health and the environment. Most of the waste produced is disposed of in poorly controlled landfills, especially in third world countries such as Lebanon. The waste is subjected to degradation processes resulting in the release of many toxic substances mainly leachate which is loaded with pollutants constituting a major source of environmental pollution. In Lebanon, waste is disposed of in uncontrolled landfills without any prior sorting. The Tripoli landfill is one of the most dangerous landfills in Lebanon due to the disposal of leachate in the aquatic environment without any treatment.Our research work aims to study the physico-chemical characteristics; the temporal and seasonal variation in the quality of the leachate from the Tripoli landfill in northern Lebanon, and the estimation of the probable risk of leachate in the study area. In order to meet these objectives, several sampling campaigns were carried out covering the summer and winter periods, as well as the old and new cells of the body of the landfill. The variation of the 100 leachate quality parameters, namely dissolved organic components; inorganic macro-components; metallic trace elements; and xenobiotic organic compounds were monitored according to standard methods of wastewater analysis using specific laboratory equipment. Analyzes of the leachate quality showed a large variation between the two-landfill units. The content of the majority of pollutants (organic and mineral) detected in the new landfill unit is much higher than that found in the old unit. This indicates the heterogeneous state of the landfill body and the influence of age on the quality of the leachate. The quantity and quality of the leachate is strongly correlated with climatic conditions and it depends on the pollutant studied, reflecting the complexity of the seasonal effect on the quality of the leachate from the Tripoli landfill. High values of LPI (Leachate Pollution Index) and leachate pH were found which show the age of the Tripoli landfill. High values of LPI and the annual flow of pollutants (organic and mineral) were found, which shows the high toxicity of the leachate as well as the occasional pollution of the different behaviors of the neighboring aquatic environment (Abou Ali River and Mediterranean Sea).The results obtained in this study give a clear picture of the leachate quality of the Tripoli landfill; which will be used to set corrective and preventive actions for the hazardous situation of the landfill, and to attract the attention of local and national managers to limit the danger and move towards a good management of leachate rejected by the establishment of a specific treatment system of leachate
Kamel, Naouel. "Effets combinés des facteurs environnementaux et des polluants chimiques chez la moule Mytilus galloprovincialis : harmonisation des biomarqueurs d’exposition suivant lesrecommandations OSPAR et MEDPOL." Nantes, 2014. https://archive.bu.univ-nantes.fr/pollux/show/show?id=a3c3b77f-66c2-4c24-8210-2922f440eca3.
Full textThe assessment of the environmental quality of aquatic ecosystem used an integrated approach of chemistry and biology. The influence of temperature on the Response of biomarkers has been studied in experimental conditions on mussels from the Bizerte lagoon exposed to Benzo [a] pyrene. In situ experiments have allowed us to track changes in biochemical and physiological mechanisms in the mussel Mytilus galloprovincialis from two little and heavily contaminated Bizerte lagoon sites. Spatial and seasonal variations in a battery of biomarkers were analyzed in relation to environmental parameters. Approach coupling interactions between abiotic and biotic factors in space and time identified the rise in temperature in summer and effort laying the greatest impact as parameters of metabolic adaptive response. The metabolic response of adaptation is based on an monthly monitoring for two seasonal cycles, a battery of effect and exposure biomarkers (benzopyrene hydroxylase, glutathione Stransferase, multxenobiotics resistance, the acetylcholinesterase, catalase, malondialdehyde, the stability of lysosomal membranes and DNA strand breaks (Comet assay)) and physiological markers (condition and gonadic indices) on two sites and some highly contaminated by heavy metals, polycyclic aromatic hydrocarbons and polychlorobyphenils. The monthly survey of two seasonal cycles also allowed (1) to apply the biological response index (IBR : integrated biological response) for an integrated interpretation of biomarkers for chronic exposure and (2) to propose thresholds no effect (BAC : background assessment criteria ) and thresholds with effects of chemical contaminants (EAC : Environment assessment criteria ) with the aim of standardizing the interpretation of biomarkers in monitoring a Mediterranean lagoon in northern Tunisia
Debevec, Cécile. "Identification des déterminants de la concentration en polluants organiques gazeux dans le bassin méditerranéen Est." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10138/document.
Full textVolatile organic compounds (VOCs) play a key role within the atmospheric system acting as precursors of ozone and secondary organic aerosols (OA). In the Mediterranean region, particulate and gaseous concentrations are usually higher than in most continental European regions especially during summertime. However, air pollution in this region remains difficult to characterize because of a lack of atmospheric measurements. This thesis provides a better understanding of the sources and fate of VOCs in the Eastern Mediterranean region. During the intensive field campaign held in March 2015 at a background site of Cyprus, real-time measurements of a large number of VOCs have been performed, allowing the evaluation of their concentration levels in ambient air, improving the understanding of their major sources in the area, and describing their variabilities and their potential origins. A factorial analysis (PMF) showed that the local biogenic sources and the regional background were found to be the largest contributors to the VOC concentrations observed at this site. Benefiting from real-time OA measurements, a parallel between organic aerosol and gas phase composition was conducted. Biogenic VOC interactions with anthropogenic compounds can influence formation and growth of newly particles, inducing a reinforcement of secondary OA fraction. Finally, on-line measurements of primary VOCs were performed from January 2015 to February 2016 to provide a better characterization of the seasonal variation in VOCs and their sources impacting the Eastern Mediterranean region
Badol, Caroline. "Caractérisation des composés organiques volatils dans une atmosphère urbaine sous influence industrielle : de l'identification à la contribution des sources." Lille 1, 2005. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2005/50376-2005-Badol.pdf.
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