The present study was carried out to investigate the persistence of some pesticides (diazinon and
deltamethrin) in water, feeds and milk. The obtained results illustrated that diazinonwas persisted for
longer time in water, feed and milk samples than deltamethrin, it disappears within 21
st
and14
th
day after
application in water and feed, respectively, while it disappears within 30
th
day after application in milk.
Moreover, deltamethrin disappear within 7th
day after application in feed and water, while in milk it
disappears within 21
st
day after application. We concluded that diazinon and deltamethrin were persisted
in milk for longer time than both feed and water. Pesticides contamination of milk and milk products
may lead to acute or chronic toxicity for human being representing public health hazards through their
cumulative effects.