Multi Residue Analysis of Pesticides in Wheat and Khat Collected from Different Regions of Ethiopia

The present study investigated the presence and level of pesticide residues in wheat and khat samples collected from various localities of Ethiopia. The khat samples from Galemso and Aseno had p,p'-DDT concentrations ranged from 141.2 to 973.0 mu g/Kg and 194.3-999.0 mu g/Kg, respectively. Diazinon was detected in all the khat samples from BadaBuna (173.9-686.9 mu g/Kg) but not in any of the samples from Galemso and Aseno. Diazinon was detected in all the wheat samples obtained from both Arsi and Bale (125.8 and 125.6 mu g/Kg, respectively) and aldrin levels in these samples were below the quantification limit. Khat may be a contributing factor in the pathological diseases found among khat users.