A total of 90 random samples of salted fish products represented by salted sardine, salted Mugil cephalus
(fesiekh) and salted Hydrocynus froskahlii (Mellouha) (30 of each) were collected from different
supermarkets at El-Kalyoubia governorate. The collected samples were directly transferred to the
laboratory for determination of Malathion and dieldrin. The obtained results indicated that the mean
values of malathion concentration in the examined samples of slated sardine, salted Mugil cephalus and
salted Hydrocynus froskahliii were 0, 206.35±11.59 and 318.05±23.31ppb, respectively. Also, the
obtained results indicated that the mean values of dieldrin concentration in the examined samples of
salted sardine, salted Mugil cephalus and salted Hydrocynus froskahlii were 38.2, 164.40 ± 9.31 and
218.92 ± 15.07ppb, respectively