|
Abstract
|
Article Information:
Arsenic, Cadmium, Copper and Lead Accumulation in Water, Sediments and Fish Species of Oueme River in Bonou
P. Guedenon, A.P. Edorh, C. Kaki, A.P.E. Yehouenou, K. Gnandi, S. Montcho, A. Hounkpatin, L. Koumolou and M. Boko
Corresponding Author: P. Guedenon
Submitted: 2011 December, 16
Accepted: 2011 January, 21
Published: 2012 February, 20 |
Abstract:
|
In order to evaluate the level of contamination of Oueme river with heavy metals and raise awareness
of the local population regarding heavy metals pollution and its risks for health, assessment of toxic metals
(cadmium, lead, copper and arsenic) was carried out in water, sediments and fish species samples of Oueme
River in Bonou municipality located in the south of Benin. The study was carried out in 2011. Except for water,
sediments and fish samples were mineralized before the analysis with atomic absorption spectrophotometer.
Mean concentrations of heavy metals in water rose from ND to 1.0 mg/L in the case of lead and 4.41 to 10.23
mg/L for arsenic. In water, copper showed low concentrations in all locations and most of the values of
cadmium were below the detectable limits. The mean concentrations in the sediments were: Cd (0.01 to 22.07
mg/Kg); Pb (2.73 to 20.12 mg/Kg); Cu (7.84 to 58.96 mg/Kg) and As (0.01 to 870.03 mg/Kg). In fish, the
concentrations were expressed in mg/Kg. Clarias gariepinus is the most polluted species with high levels in
Cd, Pb, Cu and As (2.31±1.44; 2.09±1.29; 15.10±6.34; 13.90±7.88), respectively. The mean concentrations of
heavy metals recorded in Parachanna obstura are 1.34±0.65; 1.17±0.79; 2.72±2.19; 4.11±3.56, respectively
for Cd, Pb, Cu and As, respectively. In Tilapia guineensis were recorded Cd: 1.53±0.97; Pb: 1.56±1.27; Cu:
0.91±0.58 and As: 7.56±2.41. The implication of this finding is that the consumption of water and fishes of
Oueme River by man could lead to health hazards induced by heavy metals.
Key words: Fish species, heavy metals, Oueme River, sediments, water, ,
|
|
Abstract
|
PDF
|
HTML |
|
Cite this Reference:
P. Guedenon, A.P. Edorh, C. Kaki, A.P.E. Yehouenou, K. Gnandi, S. Montcho, A. Hounkpatin, L. Koumolou and M. Boko, . Arsenic, Cadmium, Copper and Lead Accumulation in Water, Sediments and Fish Species of Oueme River in Bonou. British Journal of Pharmacology and Toxicology, (1): 13-20.
|
|
|
|
 |
ISSN (Online): 2044-2467
ISSN (Print): 2044-2459 |
 |
| Information |
|
|
|
|
| Sales & Services |
|
|
|
|
