Asian Journal of Plant Sciences1682-39741812-5697Asian Network for Scientific Information10.3923/ajps.2005.132.135HaqMidrar-ul- KhattakRiaz A. PunoHaji Khan SaifM. Saleem MemonKazi Suleman SialNabi Bux 2200542This study presents toxicity of trace elements (Zn, Cu, Fe, Mn, Cd, Cr, Ni, Pb) in different vegetables grown on potentially contaminated sites of the Korangi Industrial Area, Karachi (Sindh) Pakistan. A total of 40 effluent irrigated and 4 tubewell irrigated considered as background samples were collected and analyzed for trace elements concentration. The maximum concentrations of trace elements absorbed by different vegetables grown on effluent irrigated soils were 78.8, 103.25, 638.8, 973.3, 7.4, 22.5, 88.0 and 64.0 mg kg-1 for Zn, Cu, Fe, Mn, Cd, Cr, Ni and Pb, respectively. However, the background plant samples showed the maximum concentrations of 32.4, 19.5, 172.5, 111.8, 1.8, 4.2, 14.8 and 12.4 mg kg-1 for the above respective elements. The values observed in this study were also compared with the toxic and excessive levels. The comparison showed that 100, 13, 18, 50, 93 and 50% of samples contained toxic or excessive levels of Cu, Mn, Cd, Cr, Ni and Pb, respectively. The concentration of trace elements in effluents irrigated plants were higher than those in tubewell irrigated plants and also higher than those generally reported in the literature.]]>Underwood, E.J.,19774th Edn.,Pages: 545Pages: 545Brown, P.H., R.M. Welch and E.E. Cary,198785801803Eskew, D.L., R.M. Welch and E.E. Cary,1983222621623Kabata-Pendias, A. and H. Pendias,19841st Edn.,Peterson, P.J.,197259505526Welch, R.M.,19862205247AOAC,199015th Edn.,pp: 200-210pp: 200-210Berman, S.C. and M.M. Lal,199415107115Wazir, K.K.,19941994Bowen, H.J.M.,1979pp: 333pp: 333Beavington, F.,19759211211Ikramullah,20002000Page, A.L., T.S. Ganje and M.S. Joshi,19714113311331Allaway, W.H.,19861986pp: 465-488pp: 465-488Jones, Jr., J. Beton, B. Wolf and H.A. Mills,1991Katyal, J.C. and N.S. Randhawa,1983Faber, A. and J. Niezgoda,1982339393Qadir, M.,19991999