Human Risk Assessment of Consuming Farm Raised Fish in Uyo, Nigeria
Journal Title: Journal of Applied Life Sciences International - Year 2016, Vol 9, Issue 2
Abstract
Background: Fish farms are usually established in other to achieve self sufficiency in fish production, and to also supplement capture fishery production. This study was carried out to ascertain the risks or otherwise of consuming farm raised fish in Uyo, Akwa Ibom State. Methods: The fish species collected from these farms was Clarias gariepinus. The fish feeds (multifeed and coppen) as well as the water samples from the ponds were also analysed. All samples were collected from two commercial fish farms located at different areas in Uyo. These samples were digested and analyzed for the level of six trace metals namely lead (Pb), nickel (Ni), cadmium (Cd), chromium (Cr), cobalt (Co) and zinc (Zn) using atomic absorption spectrophotometer. Target hazard quotient as well as hazard index were calculated for the analysed trace metals. Physicochemical properties of the water samples collected were analysed using standard methods. Results: In general, the highest concentrations of trace metals were present in the feeds except zinc while the lowest concentrations were observed in all the water samples. From the results, it was observed that lead, cadmium and chromium exceeded the maximum permissible limits set by WHO and other international regulatory agencies in water while cobalt and chromium was above permissible limits in fish and feed. From the results, it was revealed that the target hazard quotients (THQ) for individual trace metals and hazard index (HI) values based on Ni, Pb, Cd, Cr and Zn were all less than 1. The physical parameters of the water samples obtained from the ponds indicated that all the parameters were within permissible limits except for pH and conductivity. Conclusion: From the results obtained from the target hazard quotients and hazard index calculations, the study established that health risk associated with the intake of these metals via consumption of these fishes was insignificant. However, continuous monitoring of farm raised fishes as well as the feeds given to these fishes is necessary in other to reduce or completely avoid contamination by trace metals.
Authors and Affiliations
I. E. Daniel, N. U. Matthew
Keywords
Related Articles
- EP ID EP351943
- DOI 10.9734/JALSI/2016/29795
- Views 86
- Downloads 0
Effects of Soil- Transmitted Helminths and Schistosoma Species on Nutritional Status of Children in Mwea Irrigation Scheme, Kenya
Aim: Soil- transmitted helminths (STH) and schistosomiasis are a major public health problem in Kenya as well as in many other tropical countries. Intestinal parasite infections have been associated with malabsorption an...
Studies on Use of Local Medicinal Flora in Nest Building by Threatened Bird, Grus antigone antigone in and around Alwara Lake of District Kaushambi (U.P.), India
An attempt was made to study the use of local medicinal flora in nest building by Indian Sarus Crane in and around Alwara lake of Kaushambi district of Uttar Pradesh. The study was centralized mainly on medicinal values...
Efficacy of Palm Bunch Ash on the Growth Performance and Mineral Nutrient Composition of Phaseolus vulgaris L. Grown in Diesel Oil Polluted Soil
This study was designed to investigate the efficacy of palm bunch ash on the growth and nutrient composition of Phaseolus vulgaris affected by diesel oil pollution of soil. The model chosen for this study was the growth...
Phytochemical Composition and In vivo Antibacterial Activity of the Aqueous Leaf Extract of Polygonum limbatum on Escherichia coli-infected Guinea Pigs
Background: Polygonum limbatum Meisn (Polygonaceae) extracts have been used in West region of Cameroon for the treatment of urogenital infections. The therapeutic efficacy of the aqueous leaf extract of Polygonum limbatu...
An Epidemiological Study of Antibiotic Resistance of Salmonella typhi and Salmonella paratyphi - A from Clinical Samples in Dhaka City
Aims: Typhoid fever is a serious bacterial disease caused by Salmonella typhi or Salmonella paratyphi. Study Design: The objectives of this study is to determine the prevalence and antibiotic resistance pattern of Salmo...