(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170


Pages: 641-646
O. M. Wangboje and P. A. Oghenesode

keywords: Estimated daily intake, Ethmalosa fimbriata, Niger Delta, Toxic/hazard quotient


This study specifically ascertained the levels of Zinc (Zn), Iron (Fe), Copper (Cu), Cadmium (Cd) and Lead (Pb) in samples of smoke-dried Ethmalosa fimbriata (Mean length=26.52 ± 3.35 cm; mean weight=74.05 ± 4.56 g) from selected markets in Warri, Delta state, Nigeria, by Atomic Absorption Spectrometric technique, in order to ascertain their suitability for human consumption. The grand mean for heavy metals in fish ranged from 0.195 mg/kg (Cd) to 329 mg/kg (Fe) while the heavy metal profile in fish was Fe>Zn>Cu>Pb>Cd. The estimated daily intake (EDI) for heavy metals in mg/person/day ranged from 0.008 (Cd) to 3.52 (Fe) while the EDI profile for the metals followed the rank order Fe>Zn>Cu>Pb>Cd. The total toxicity of mixtures (TTM) index for heavy metals was 27.16 while the toxicity/hazard quotient (TQ) for heavy metals ranged from 0.63 (Cu) to 10.97(Fe). The theoretical maximum daily intake (TMDI) for heavy metals was 3614 mg/person/day while the margin of exposure (MOE) for heavy metals ranged from 0.09 (Fe) to 1.60 (Cu). The mean concentrations of the investigated metals exceeded the maximum limits established by Food and Agriculture Organization (FAO) and Commission Regulation (EC), indicating that such fish must be consumed with caution to avoid heavy metal poisoning and its related myriad of health problems.


Adeyemo OK, Adedokun OA, Yusuf O & Adeleye EA 2008. Seasonal changes in physico-chemical parameters and nutrient load of River sediments in Ibadan City, Nigeria. Glo. Nest J., 10(3): 326-336. Ako PA &Salihu SO 2004. Studies on some major and trace metals in smoked and oven–dried fish. J. Appl. Sci. Environ. Mgt., 8 (2): 5-9. Anigboro FO, Akpoveta OV & Aweatefe, KJ 2011. Determination of concentration levels of heavy metals in different species of smoked fishes from three markets in Agbor, Delta state, Nigeria. Agbor J. Sci. Edu., 4: 81-88. Anyakora C, Arababi M & Coke H 2008. A screen for benzo(a) pyrene in fish samples from crude oil polluted environments. Ame. J. Environ. Sci., 4(2): 145-150. ANZECC/ARMCANZ 2000. Australian and New Zealand guidelines for fresh and marine water quality Vol. 1: National Water Quality Management Strategy, Paper No. 4. Australian and New Zealand Environment and Conservation Council/Agriculture and Resource Management Council of Australia and New Zealand, Canberra, Australia. Commission Regulation (EC). 2006. Setting maximum levels for certain contaminants in foodstuff. No 1881/2006 of 19 December 2006. Ekpo FE, Agu NN & Udoakpan W 2013. Influence of heavy metal concentrations in three common fish, sediment and water collected within quarry environment, Akamkpa, Cross River state, Nigeria. Eur. J. Tox. Sci.,3: 1- 11. Elebeke E 2016. Thirty seven percent of Nigerians malnourished. Vanguard Newspaper, Friday March 11, 2016. Volume 25, Number 62802, p. 36. Food and Agriculture Organisation 1983. Compilation of legal limits for hazardous substances in fish and fishery products. FAO Fishery Circular Number 464, pp. 5-100. Igbagara PW, Ezekwe IC & Oji C 2016. Hydrocarbonclasticmicrooganisms and hydrocarbon pollution of groundwater in the Obagi oil fields of Rivers state Nigeria. TLEP Int. J. Bio. Health Care Prac., 2(1): 19-28. Meredith-Williams M, Carter LJ, Fussell R, Raffaelli D, Ashauer R &Boxall AB 2012. Uptake and depuration of pharmaceuticals in aquatic invertebrates. Environ. Poll., 165: 250-258. Nduka JK, Orisakwe OE &Okerulu IO 2010. Heavy metal levels in muscles of some fish species from Aladja River; Warri, Nigeria: A public health concern. Adv. Environ. Bio.,4(5): 125-130. Newstead JN, Cousins IK & Giesy JP 2002. Predicted distribution and ecological risk assessment of a segregated hydrofluoranthene in the Japanese environment. Environ. Sci. Tech., 36: 4761-4769. Nigerian Industrial Standard 2007. Nigerian Standard for Drinking Water Quality.NIS 554. Publication of the Standard Organisation of Nigeria. Nigerian Institute for Oceanography and Marine Research 2015. Fish smoke-drying equipment bulletin. Publication of NIOMR, Victoria Island, Lagos, Nigeria. Obahiagbon KO & Azeke GO 2016. Application of biostimulants and bioparticulates for the bioremediation of crude oil contaminated soil. Res. J. Eng. Environ. Sci., 1(1): 69-74. Ogbe MG 2011. Managing the environmental challenges of the oil and gas industry in the Niger Delta. Nig. J. Life. Sci., 1(1): 1-17. Ozigbo E, Anyadike C, Adebgite O & Kolawole P 2014. Review of aquaculture production. and management in Nigeria. Ame. J. Exp. Agric., 4(10): 1138-1151. Purchase IFH 2000. Risk assessment principles and consequences. Pure Appl. Chem., 72(6): 1051-1056. Ugokwe CU &Awobode HO 2015. Heavy metals in organs and endoparasites of Oreochromis niloticus, sediment and water from River Ogun, Ogun State, Nigeria. IOSR J. Environ. Sci. Tox. & Food Tech., 9 (11): 101-109. DOI: 10.9790/2402 09112101109. Wangboje OM & Ekundayo OT 2015. Heavy metal contaminants in Malapteruruselectricus (Gmeli, 1789), Tilapia zillii (Gervais, 1848) and water from Ikpoba Reservoir, Benin City, Nigeria. The Zoo., 13: 11-17. Wangboje OM, Ekundayo OT & Ijoyah TM 2016b. Human health risk assessment of zinc, copper, lead and cadmium in the myonematic tissues of eight fish species sold in major markets in Lagos Metropolis, Nigeria. Pak. J. Food Sci., 26(2): 98-108. Wangboje OM, Enuneku AA & Onyeri AC 2016a. Bioaccumuation profile of polycyclic aromatic hydrocarbons in the environmental biology of the Clariid fish Clarias gariepinusat Ogba River, Benin City, Nigeria. J. For. Environ. Sus. Dev., 2(1): 91-107. Wangboje OM & Oguzie FA 2013. An evaluation of polycyclic aromatic hydrocarbons in Hemichromis fasciatus from an urban reservoir in southern Nigeria. Trop. Freshwater Bio., 22: 35-47. Wangboje OM & Okeke EO 2016. Heavy metal burden in some fish species from Ikpoba River, Benin City, Nigeria. J. Agric. For. Fish., 15(1): 5-10. Wangboje OM, Oronsaye JAO, Okieimen FE & Oguzie FA 2014. Chemical fractionation of heavy metals in the sediments of the Ikpoba Reservoir, Benin City, Nigeria. Nigeria. Nig. J. Appl. Sci., 32: 241 – 254. Wikipedia 2016. http:// en.m. wikipedia.org/wiki/Warri. Retrieved 29th May, 2016. World Health Organization 1997. Guidelines for predicting dietary intake of pesticide residues (Revised). Programme of Food Safety and Food Aid, WHO. WHO/FSF/FOS/97.7., p. 41. World Health Organization 2004. Guidelines for drinking water quality. Third Edition, Volume 1. Recommendations. WHO, Geneva.