Évaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais

Bioaccumulation of cadmium, lead and arsenic in fish and bivalves commonly caught in Togo lagoon system was evaluated in order to estimate the health risks associated with their use. The results showed that all analyzed fish are contaminated. The mean levels of cadmium (0.33 mg/kg for Caranx hippos...

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Autores principales: Kamilou Ouro-Sama, Hodabalo Dheoulaba Solitoke, Kissao Gnandi, Komlan Mawuli Afiademanyo, Essô Joseph Bowessidjaou
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Publicado: Éditions en environnement VertigO 2014
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spelling oai:doaj.org-article:b351c22a438642d0ac69663ef2e3a5dd2021-12-02T10:00:14ZÉvaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais1492-844210.4000/vertigo.15093https://doaj.org/article/b351c22a438642d0ac69663ef2e3a5dd2014-09-01T00:00:00Zhttp://journals.openedition.org/vertigo/15093https://doaj.org/toc/1492-8442Bioaccumulation of cadmium, lead and arsenic in fish and bivalves commonly caught in Togo lagoon system was evaluated in order to estimate the health risks associated with their use. The results showed that all analyzed fish are contaminated. The mean levels of cadmium (0.33 mg/kg for Caranx hippos to 0.98 mg/kg for Hemichromis fasciatus), lead (1.17 mg/kg for Liza falcipinnis to 2.89 mg/kg for Lutjanus goreensis ) and arsenic (9.41 mg/kg for C. hippos to 22.54 mg/kg for Pomadasys jubelini) are higher than the standards set by the WHO. Bioconcentration Factors (BCF) ranged from 6.94 to 20, 36 for Cd, 9.58 to 23.67 for Pb and 2.30 to 5.52 for As. As far as bivalves are concern, average grades indicate a high concentration of arsenic (56.06 mg/kg for Senilia senilis and 47.76 mg/kg for Crassostrea gasar) followed by lead (2.83 mg/kg for S. senilis and 2.95 mg/kg for C.gasar) and finally cadmium (0.97 mg/kg for S. senilis and 0.83 mg/kg for C.gasar). BCF ranged from 16.6 to 19.14 for Cd, 39.86 to 41.55 for Pb and 19.10 to 34.42 for As. In addition,Kamilou Ouro-SamaHodabalo Dheoulaba SolitokeKissao GnandiKomlan Mawuli AfiademanyoEssô Joseph BowessidjaouÉditions en environnement VertigOarticleBioaccumulationmétaux lourdspoissonsbivalvesrisques sanitairessystème lagunaireEnvironmental sciencesGE1-350FRVertigO, Vol 14, Iss 2 (2014)
institution DOAJ
collection DOAJ
language FR
topic Bioaccumulation
métaux lourds
poissons
bivalves
risques sanitaires
système lagunaire
Environmental sciences
GE1-350
spellingShingle Bioaccumulation
métaux lourds
poissons
bivalves
risques sanitaires
système lagunaire
Environmental sciences
GE1-350
Kamilou Ouro-Sama
Hodabalo Dheoulaba Solitoke
Kissao Gnandi
Komlan Mawuli Afiademanyo
Essô Joseph Bowessidjaou
Évaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais
description Bioaccumulation of cadmium, lead and arsenic in fish and bivalves commonly caught in Togo lagoon system was evaluated in order to estimate the health risks associated with their use. The results showed that all analyzed fish are contaminated. The mean levels of cadmium (0.33 mg/kg for Caranx hippos to 0.98 mg/kg for Hemichromis fasciatus), lead (1.17 mg/kg for Liza falcipinnis to 2.89 mg/kg for Lutjanus goreensis ) and arsenic (9.41 mg/kg for C. hippos to 22.54 mg/kg for Pomadasys jubelini) are higher than the standards set by the WHO. Bioconcentration Factors (BCF) ranged from 6.94 to 20, 36 for Cd, 9.58 to 23.67 for Pb and 2.30 to 5.52 for As. As far as bivalves are concern, average grades indicate a high concentration of arsenic (56.06 mg/kg for Senilia senilis and 47.76 mg/kg for Crassostrea gasar) followed by lead (2.83 mg/kg for S. senilis and 2.95 mg/kg for C.gasar) and finally cadmium (0.97 mg/kg for S. senilis and 0.83 mg/kg for C.gasar). BCF ranged from 16.6 to 19.14 for Cd, 39.86 to 41.55 for Pb and 19.10 to 34.42 for As. In addition,
format article
author Kamilou Ouro-Sama
Hodabalo Dheoulaba Solitoke
Kissao Gnandi
Komlan Mawuli Afiademanyo
Essô Joseph Bowessidjaou
author_facet Kamilou Ouro-Sama
Hodabalo Dheoulaba Solitoke
Kissao Gnandi
Komlan Mawuli Afiademanyo
Essô Joseph Bowessidjaou
author_sort Kamilou Ouro-Sama
title Évaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais
title_short Évaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais
title_full Évaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais
title_fullStr Évaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais
title_full_unstemmed Évaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais
title_sort évaluation et risques sanitaires de la bioaccumulation de métaux lourds chez des espèces halieutiques du système lagunaire togolais
publisher Éditions en environnement VertigO
publishDate 2014
url https://doaj.org/article/b351c22a438642d0ac69663ef2e3a5dd
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