Influence of Transport Phenomena on Pollutants Concentration in Mediterranean Tunisian Regions
- 1 Université Européenne de Bretagne, France
- 2 University of West Indies, Jamaica
Abstract
The objective of this study is to investigate the origin of the polluted air masses in the Tunisian Mediterranean regions and to characterize the atmospheric conditions and the transport and dispersion mechanisms that give rise to pollution events. For this end, we conducted continuous measurements campaigns of surface ozone concentration and meteorological parameters during summer 2011 using mobile and fixed stations in the Tunisian regions. The results indicated that the seasonal variability of ozone concentrations was related to European and Saharan transport events. Long range transport of pollutants from Europe resulted in O3 loading and frequent surpassing of the European standard limits in the Mediterranean Tunisian sites. During these events, the weather conditions support photochemical phenomena. The Saharan events provided the importance of chemical reactions and radiative impact involving dust particles which may reduce the photochemical production of ozone.
DOI: https://doi.org/10.3844/ajessp.2013.537.543
Copyright: © 2013 Karim Bouchlaghem, Blaise Nsom and Jean-Francois Dorville. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Mediterranean
- Transport
- Air Quality
- Pollutants Monitoring
- Standards Limits