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Poster communications

Identification of natural and anthropogenic pollutants in the transboundary area of Saint Georges de l'Oyapock for a modeling and monitoring of these pollutants by GIS in the future

Marie-Lise Gobinddass 1, 2, 3 Damien Davy 4 L . Orgambide 5 K. Panechou 6 
3 UMR Espace-Dev Guyane
IRD - Institut de Recherche pour le Développement, UPVD - Université de Perpignan Via Domitia, AU - Avignon Université, UR - Université de La Réunion, UG - Université de Guyane, UA - Université des Antilles, UM - Université de Montpellier
Abstract : Like other communes in French Guiana, the commune of Saint-Georges de l'Oyapock is subjected each year to natural pollutants (e.g. Saharan dust, Prospero et al. 1981) and to anthropogenic pollutants (e.g. benzene).Given that the measuring stations of PM10, PM2.5, nitrogen oxide and benzene belonging to ATMO GUYANE currently exist only on Cayenne, Matoury and Kourou, a preliminary study had to be carried out here for desert aerosols at first, then for benzene. In the case of desert aerosols, a first work on the search for correlation between ground data collected by Thermo Scientific Tapered Element Oscillating Microbalance (TEOM) and optical thickness data (AOT) from satellite VIIRS images was carried out. In the case of benzene, the very first measurement campaign was carried out at the end of June 2021 just before the closing of schools. For the OHM Oyapock, establishing a recurrent benzene measurement campaign over the medium term would be a tool to evaluate internal mobilities in Saint-Georges and Oiapoque as well as cross-border mobilities inherent to the opening of the bridge. The results will be presented here but it will be necessary to repeat this campaign in full school period. The goal in the short or medium term is to evaluate the impacts on health. For this, according to WHO recommendations for population health, we have chosen a threshold of 50 ?g m-3. In fact, values greater than 50 ?g.m-3 are harmful to populations.
Keywords : OHM Oyapock
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Poster communications
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https://hal.archives-ouvertes.fr/hal-03716556
Contributor : Mathieu Massaviol Connect in order to contact the contributor
Submitted on : Thursday, July 7, 2022 - 3:24:32 PM
Last modification on : Friday, August 5, 2022 - 2:44:08 PM

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Marie-Lise Gobinddass, Damien Davy, L . Orgambide, K. Panechou. Identification of natural and anthropogenic pollutants in the transboundary area of Saint Georges de l'Oyapock for a modeling and monitoring of these pollutants by GIS in the future. International Symposium of LabEx DRIIHM 2022, Jun 2022, Nantes, France. 2022, ⟨10.34972/driihm-73d388⟩. ⟨hal-03716556⟩

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