Research Journal of Environmental Sciences1819-34122151-8238Academic Journals Inc.10.3923/rjes.2007.141.150EdeoguC.O. EzeonuF.C. OkakaA.N.C. EIomS.O. EkumaC.E. 4200714The trace elements (Fe, Zn, Cu, Mn, Cd, Pb and Co) level in staple food crops (yam, cassava, maize, cowpea and African yambean); soils; surface and underground water sources in Ebonyi State, Nigeria has been quantitatively determined using the Atomic Absorption Spectrophotometer (AAS). The results show that the Fe level in staple food crops is in the range of 15.26 to 78.28 mg kg-1 with a mean value of 48.98±24.96 mg kg-1 which is significant (p<0.05) when compared to the Recommended Daily Allowance (RDA) of 18.0 mg Fe day-1. Also, it was inferred that the levels of Fe, Zn and Mn in the staple food crops, soils, surface and underground water sources exceeded the RDA, while Co and Ni were absent or not detected in the samples analyzed. The correlation analysis were significant: Cu (95.30%), Fe (54%) and Zn (61%) in the soil and rice; Cu (59%), Fe (84%) and Mn (78%) in the soil and maize; Zn (82%), Cd (70%) and Mn (50%) in the soil and cassava while for soil and yam is significant for Fe (83%) and fairly significant for Cd (49%). Significant correlations also existed between surface H2O and rice for Fe (74%) and Cu (88%); maize Mn (67%), cassava Fe (75%) and Mn (91%); yam Fe (53%) and Cu (86%); cowpea Zn (82%); African yambean Cu (58%). Perfect correlations abound between the trace element levels in cereals and tubers; cereals and legumes; tubers and legumes while that between trace elements in surface and underground water were significant only for Zn (87%).]]>ATSDR,2004pp: 150pp: 150AFAR.,20002000Akpan, L.O. and A.U. Akpanidiok,20063119125Beilby, J., J. Olynk, S. Ching, A. Prins, A. Swanson, W. Reed, H. Harley and P. Garcia-Webb,19923820782081Berg, J.M.,199019405421Bohn, H.L., B.L. McNeal and G.A. O'Conor,1979pp: 272-275pp: 272-275Bourre, J.M.,2004160767792Brady, N.C. and R.B. Wiel,199611th Edn.,pp: 150-158pp: 150-158Chaneny, R.C.,1980192830Cobb, G.P., S.K. Sand, M. Waters, B.G. Wixson and K.E. Dorwars,200019600607Corie Farms Industrial Limited,20032003Danks, D.M.,19951995pp: 2211-2235pp: 2211-2235De Freitas, J., H. Wintz, J.H. Kim, H. Poynton, T. Fox and C. Volpe,200316185197Egboka, B.C., G.I. Nwankwor, I.P. Orajaka and A.O. Ejiofor,1989833968Ezeonu, F.C., C.O. Edeogu and S.C. Udedi,20052005Fano, E., M. Brewster and T. Thompson,19851985pp: 641654Food and Agriculture Organization of the United Nations,19941994Gindings, J.C.,1973Garcia, W.J., C.W. Blessin, G.E. Inglett and W.F. Kwolek,198115793804Guthrie, H.A. and M.F. Picciano,1995pp: 303-542pp: 303-542Harrison, R.M.,1982pp: 27-39pp: 27-39Hill, C. and G. Matrone,1970in vivo and in vitro interactions of trace elements.]]>2914781481Khan, D.H. and B. Frankland,198370335345Klevay, L.M.,197528764774Klevay, L.M.,2000130489S492SLonnerdal, B. and O. Hernel,19941994O'Dell, B.L.,2002296619621Onyeike, E.N., S.I. Ogbuja and N.M. Nwinuka,200277151205Punnonen, K., K. Irajala and A. Rajamaki,199440774776Rayssiguier, Y., E. Gueux, L. Bussiere and A. Mazur,199312313421348Robert, A.G.,19956454505Allen, S.E., H.M. Grimshaw, J.A. Parkinson and C. Quarmby,19742nd Edn.,Taylor, A.,199633486510Burits, C.A. and E.D. Ashwood,19942nd Edn.,Troye, L., B.H. Olson, B.C. Hill, L. Thornton and H. Matthews,1980pp: 129-131pp: 129-131Underwood, E.J.,19974th Edn.,pp: 125-132pp: 125-132Warren, H.V.,1972225660Wayne, A.P. and B.H. Dale,19892nd Edn.,pp: 107pp: 107Wood, J.M.,197421524527WHO.,1984Xiong, Z.T.,1998Brassica pekinensis Rupr.]]>60285291Zoller, W.H.,19841984pp: 27-34pp: 27-34