Impact of salinity on density and mechanical strength of <i>Avicennia germinans</i> wood exposed to marine oil pollution in the Gabon Estuary

Mabicka Iwangou Saint  Bickolard; Safou Tchiama  Rodrigue; Besserer  Arnaud; Andzi Barhé  Timoléon; Gérardin  Philippe

doi:10.59400/jts1924

Impact of salinity on density and mechanical strength of Avicennia germinans wood exposed to marine oil pollution in the Gabon Estuary

Mabicka Iwangou Saint Bickolard LERMAB, Faculté des Sciences et Technologies, Boulevard des Aiguillettes, BP 70239, 54506 Vandoeuvre lès Nancy Cedex, France; Laboratoire de Recherche et de valorisation du Matériau Bois (LaReVa Bois), Institut de Recherches Agronomiques et Forestières (IRAF)/CENAREST, BP 2246, Libreville, Gabon
Safou Tchiama Rodrigue Laboratoire des Substances Naturelles et de Synthèses Organométalliques, Université des Sciences et Techniques de Masuku, BP 941, Franceville, Gabon
Besserer Arnaud LERMAB, Faculté des Sciences et Technologies, Boulevard des Aiguillettes, BP 70239, 54506 Vandoeuvre lès Nancy Cedex, France
Andzi Barhé Timoléon Laboratoire de Recherche en Chimie Appliquée (LACRA), Ecole Normale Supérieure (ENS), Université Marien Ngouabi, Brazzaville, Congo
Gérardin Philippe LERMAB, Faculté des Sciences et Technologies, Boulevard des Aiguillettes, BP 70239, 54506 Vandoeuvre lès Nancy Cedex, France

Article ID: 1924

DOI: https://doi.org/10.59400/jts1924

Keywords: Mangroves; oil pollution; salinity; density; mechanical strength

Abstract

Located at the interface between land and sea, mangroves develop both near the sea and inland. However, mangroves that develop inland have to cope with variable, high salinity; and urban pollution, as is the case with the mangroves of the Ambowé lagoon in Greater Libreville. Salinity is an important parameter for mangrove growth. The aim of this work was; yes itto show the impact of salinity on the density and mechanical strength of A. germinans wood exposed to hydrocarbon pollution. To this end, wood samples taken from the polluted Ambowé site were analyzed in the laboratory for wood and physical-mechanical properties. The data obtained were compared with wood samples taken from the unpolluted Oveng site, which has a higher salinity. The results show that for the polluted wood showed wider rings, lower wood density and mechanical strength with values of 0.91 ± 0.05 and 70.28 MPa, respectively. Also, the rings and vessels of Oveng wood are narrower than those of Ambowé wood. These differences are linked to salinity. Salinity therefore affects the density and mechanical strength of A. germinans wood exposed to hydrocarbon pollution.

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Published

2025-01-14

How to Cite

Bickolard, M. I. S., Rodrigue, S. T., Arnaud, B., Timoléon, A. B., & Philippe, G. (2025). Impact of salinity on density and mechanical strength of Avicennia germinans wood exposed to marine oil pollution in the Gabon Estuary. Journal of Toxicological Studies, 3(1), 1924. https://doi.org/10.59400/jts1924

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