Determination Of Some Selected Heavy Metals In Tomato (fruits And Leaves) And Onion Bulbs Collected From Hunkuyi Roadside Farms, Zaria.

ABSTRACT  The concentration of heavy metals such as Pd, Cd, Cu and Cr were studied using AAS on vegetable samples such as Tomato (fruit and leaf) and Onion bulb. Trace element as Cu showed high concentration. The concentration of heavy metal like Cu ranged from of 0.155 to 0.024mg/kg in tomato fruit; 0.120 to 0.057mg/kg in leafy tomato; 0.118 to 0.121mg/kg in onion bulb which were more than the maximum permissible limit according to the International organization like FAO and WHO. The concentration of Cd for the vegetable samples ranged from 0.013 to 0.005mg/kg in tomato fruit; 0.015 to 0.027…