Seventeen vegetables procured from local markets of Peshawar nod its suburbs were analyzed using wet digestion atomic absorption method for Ee, As, ph, Hg Cd, Cr, and Ni. The families investigated were: Cucurbitaceae; Solanaceae, Cruciferae, Liliaceae, Araceae, Leguminosae, Malvaceae, Umbelliferae and Zingiberaceae. The heavy metal data are reported at 99% (+/-2S) confidence level for triplicate measurements on subsamples of a given sample with an overall reproducibility of 2% compared with standard material samples. Comparison of averages thought t-test indicates that each vegetable group is distinctly different from the other in terms of metal content, Maximum iron was present in garlic, at 4.585 mu g/g dry weight (edible part-stem) of the Liliaceae: family. Arsenic was found to be below detection limit in all the vegetable groups. Lead level were quite low: maximum, concentration (0.0200 mu g/g dry weight) was found in karaila (edible part-fruit). Mercury levels were relatively higher, with maximum concentration (2.590 mu g/g, dry weight) in gem (edible part-stem). The levels of nickel were moderately higher, being maximum (2.375 mu g/g dry weight) in karaila, The overall content of trace metals appeared to be within limits laid down internationally for safe human consumption, with only a few exceptions.
M JAFFAR ,KHALID MASUD ,
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