Health risk assessment and heavy metal contamination levels in vegetables from Tamale Metropolis, Ghana

Background: One major route of heavy metal exposure/ accumulation to humans is via vegetable consumption. The study assessed the levels of heavy metals and their associated health risk in frequently consumed vegetables in the Tamale Metropolis. Results: Cadmium concentration in cabbage, carrot, green pepper, onion and tomato ranged from 0.04 to 0.07 mg kg− 1 , 0.01 to 0.06 mg kg− 1 , 0.04 to 0.06 mg kg− 1 , 0.03 to 0.06 mg kg− 1 and 0.03 to 0.07 mg kg− 1 , respectively. Lead concentration in...