“…(2011) measured the concentration of heavy metals in breast milk of Nigerian lactating women using an Atomic Absorption Spectrophotometry, where found that the average Zn, Pb, Cd, Cu, Cr, Fe, Mn, and Se was 67.4 ppm, 0.828 ppm, 0.009 ppm, 0.828 ppm, 0.9278 ppm, 0.9307 ppm, 0.8838 ppm, and 0.909 ppm, respectively. It concluded that there are no significant changes in the averages of Zn, Cu, Pb, Cd, Cr, Fe, Mn, and Se in the milk of Nigerian mother's groups compared with control groups [ 52 ]. Björklund et al.…”