The Status of Hydrocarbon Compounds Pollution of Water, Sediments

The present study was performed to have knowledge of hydrocarbon compounds pollution status in the water (dissolved and particulate fractions), sediments, two species of aquatic plants (Ceratophyllum demersum and Paspalum pespaioides), two species of fishes (Liza abu and Carassius auratus) and one species of molluscs (Pseudodantopsis euphraticus). The samples were collected monthly for the period November 2012 to October 2013 from four different stations (Al-Magideh, Treatment unit, Al-Husaichi and Al-Zubair) distributed along Al-Kahlaa River in Missan province, in addition to Reference station lies on the Tigris River before entering Amara district about 25 km. The sampling's months were divided into four typical seasons. As well as measures of some ecological parameters (water and air temperatures, pH, turbidity, electrical conductivity, dissolved oxygen, biological oxygen demand BOD5 and total suspended solid). The concentrations of total petroleum hydrocarbons (TPHs) were measured by using spectrofluorometer. The concentrations of Polycyclic Aromatic Hydrocarbons(PAHs) and n-alkanes were determined by using Gas Chromatography.