Original Articles
M I Mohammed, R A Musa and A A
Abstract
Trace elements composition of Guava, Lemon, Moringa, Okra, Pepper, Roselle, Spinach and Tomato from ten irrigation areas (viz Magaga, Thomas Dam, Wasai, Garin-dau, Danguguwa, Watari, Marke, Joda, `Yarrutu and Guzu-guzu) of Kano State were investigated. The results obtained showed that the mean [Cd] is 0.27 ± 0.06mg/dm3, [Zn] 2.39 ± 0.11mg/dm3, [Ca] 4.05 ± 0.20mg/dm3, [Mn] 0.31 ± 0.02mg/dm3, [Co] 1.38 ± 0.10mg/dm3, [Ni] 1.75 ± 0.13mg/dm3, [Cr] 4.48 ± 0.20mg/dm3, [Pb] 1.05 ± 0.13mg/dm3, [Cu] 1.98 ± 0.15mg/dm3 and [Fe] 0.32 ± 0.18mg/dm3. The mean concentrations of Mn, Cd, Zn, Fe, Cu and Ca were within the tolerable limits of 0.5mg/dm3, 0.8mg/dm3, 5.0mg/dm3, 0.30mg/dm3, 2.00mg/dm3 and 7.5mg/dm3 respectively while the mean concentrations of Ni, Co, Pb and Cr were above the permissible limits of 0.02mg/dm3, 0.25mg/dm3, 0.05mg/dm3 and 0.05mg/dm3 respectively set by United states environmental protection agency(USEPA). The moisture contents of all the samples were analysed, having Tomato with the highest mean moisture content of 91.29% and Pepper with lowest value of 67.69%.