Higher diploma research titled Estimation of some polycyclic hydrocarbons in some types of bottled water and circulated in Basrah Province was defended at the College of Science, Department of Ecology on (3/8/2022) for the postgraduate Candidate Mujtaba Sami Mutar. The aim of the higher diploma research is to Estimation of some polycyclic hydrocarbons in some types of bottled water and circulated in Local markets of Basrah Province , determining the source of pollution and comparing with local and international standards .