Improper uses of pesticides leads to occupational, environmental and food security risks. Ethyl acetate followed by GC determination for the analysis of chlorfenapyr residues in orange and tomatoes were performed. Chlorfenapyr accuracy, repeatability, linearity and specificity were investigated. Pesticide regression coefficients (R(2)) were 0.9953 and 0.9901 in orange and tomatoes, respectively. LODs were 2.3 and 2.4 ?g/kg, respectively, while LOQs were 8.0 and 7.8 ?g/kg, respectively. Recovery% was ranged from 91.12% to 96.54%. The Half-life values (t1/2) were 2.85 and 2.89 days for orange and tomato, respectively. The PHI was 21 and 10 days for orange and tomato, respectively. Detection of Chlorfenapyr PHI residues in this work highlights on the urgent needs for good implementation in Good Agriculture Practices and continuous control for these crops to minimize the health risk to consumption and improve exports.

A total of 18 pesticides (12 organochlorines, and 6 pyrethroids) in 32 different imported animal liver samples collected from local markets in Cairo governorate in Egypt in different seasons, were detect the contamination of organochlorines and pyrethroids pesticides using Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method. The presence of organochlorines and pyrethroids pesticides residues were determined by gas chromatography with electron capture detector (GC-ECD). The results indicated that, the pesticides residues were found in all samples and 2 samples above the maximum residue levels (MRLs). Organochlorine residues had the highest percentage of contamination and violation (i.e. 100 and 6.25%, respectively) in imported animal liver samples, whereas synthetic pyrethroid residues had the lowest percentage of contamination (i.e. 6.25%) while their percentage of violation were 0%. However, the most frequently found pesticides were P,P'-DDE and heptachlor-epoxide while the lowest frequently found pesticides were aldrin, cypermethrin and deltamethrin. Furthermore, the health risk index for heptachlor-epoxide was the greatest which may be due to its physiochemical properties. A potential regular pesticides residues monitoring program in imported animal liver should be conducted to protect the consumers' health.