Journal of
Environmental Chemistry and Ecotoxicology

  • Abbreviation: J. Environ. Chem. Ecotoxicol.
  • Language: English
  • ISSN: 2141-226X
  • DOI: 10.5897/JECE
  • Start Year: 2009
  • Published Articles: 197

Full Length Research Paper

Assessment of exposure risk to lead and cadmium via fish consumption in the lacusrian village of Ganvié in Benin republic

HOUNKPATIN Armelle S. Y.1*, EDORH A. Patrick1,2, SALIFOU Sahidou3, GNANDI Kissao4, KOUMOLOU Luc1,5 , AGBANDJI Lucien1, AISSI K. Alain1, GOUISSI Modest1 and BOKOMichel1
  1Laboratoire de Toxicologie et de Santé Environnementale, Centre Interfacultaire de Formation et de Recherche en Environnement pour le Développement Durable (CIFRED), Université d’Abomey-Calavi (UAC), 03 BP 1463, Jéricho, Cotonou/Bénin. ²Département de Biochimie et de Biologie Cellulaire, Université d’Abomey-Calavi (UAC), 01 BP 526 Cotonou/Bénin. 3Ecole Polytechnique d’Abomey Calavi (EAPC), Université d’Abomey-Calavi (UAC) 01 BP 2009, Cotonou/Bénin. 4Laboratoire GTVD (Gestion, Traitement et Valorisation des Déchets), Université de Lomé, Faculté des Sciences, BP 1515 Lomé/Togo. 5Département de Physiologie/Pharmacologie, Faculté des Sciences, Université de Lomé (UL), BP 1515 Lomé/Togo.
Email: [email protected]

  •  Accepted: 29 November 2011
  •  Published: 02 January 2012



The assessment of exposure risk related to lead and cadmium via fish consumption was conducted consecutively to the extent of the high level of pollution of the aquatic system of lacustrian village of Ganvié by recent studies. The evaluation was performed in adults and children by computing daily dose of exposure (DDE) by crossing the average levels of contamination of fish with lead and cadmium with the levels of food consumption. Therefore, thirty six (36) samples of three fish species were collected from Lake Nokoué in the surroundings of lacustrial village of Ganvié and assayed for lead and cadmium by atomic absorption spectrophotometer. The average concentration of cadmium and lead was higher than the allowed limits: 26.80 ± 0.57 ppm (against 0.4 ppm) for Pb and 1.79 ± 0.29 ppm (against 0.05 ppm) for Cd. The values â€‹â€‹of DDE obtained without systemic exposure were 111.22 and 7.42 mg / kg / day for Pb and Cd in child, respectively, against 2.28 and 34.22 mg / kg / day in adults compared to the limits permitted by WHO which are 3.6 mg / kg / day and 1μg/kg/day, respectively. These high concentrations of Cd and Pb which imply potential risks especially for children much more exposed than adults appeal to environmental consciousness.


Key words: Lead, cadmium, fish, exposed children, lacustrial city of Ganvié, daily dose of exposure (DDE).