Mbusnum K. G., Malleret L., Deschamps Pierre, Khabouchi I., Asia L., Lebarillier S., Menot G., Onguene R., Doumenq P. (2020). Persistent organic pollutants in sediments of the Wouri Estuary Mangrove, Cameroon : levels, patterns and ecotoxicological significance. Marine Pollution Bulletin, 160, 111542 [15 p.]. ISSN 0025-326X.
Titre du document
Persistent organic pollutants in sediments of the Wouri Estuary Mangrove, Cameroon : levels, patterns and ecotoxicological significance
Année de publication
2020
Auteurs
Mbusnum K. G., Malleret L., Deschamps Pierre, Khabouchi I., Asia L., Lebarillier S., Menot G., Onguene R., Doumenq P.
Source
Marine Pollution Bulletin, 2020,
160, 111542 [15 p.] ISSN 0025-326X
The anthropogenic impact in the Wouri Estuary Mangrove located in the rapidly developing urban area of Douala, Cameroon, Africa, was studied. A set of 45 Persistent Organic Pollutant were analysed in surficial mangrove sediments at 21 stations. Chlorinated Pesticides (CLPs), Polychlorinated Biphenyls (PCBs) and Polycyclic Aromatic Hydrocarbons (PAHs) have concentrations ranging from 2.2 - 27.4, and 83 - 544 ng/g, respectively. The most abundant CLPs were endosulfan, alachlor, heptachlor, lindane (gamma-HCH) and DDT, which metabolites pattern revealed recent use. Selected PAHs diagnostic ratios show pyrolytic input predominantly. The sum of 7 carcinogenic PAHs (SC-PAHs) represented 30 to 50% of Total PAHs (TPAHs). According to effect-based sediment quality guidelines, the studied POPs levels imply low to moderate predictive biological toxicity. This study contributes to depict how far water resources are shifting within what is now termed the Anthropocene due to increasing local pressures in developing countries or African countries.
Plan de classement
Pollution [038]
;
Etudes, transformation, conservation du milieu naturel [082]
;
Urbanisation et sociétés urbaines [102]
Description Géographique
CAMEROUN ; DOUALA
Localisation
Fonds IRD [F B010081264]
Identifiant IRD
fdi:010081264
