The Department of Life Sciences at the College of Education for Pure Sciences at the University of Basra organized a scientific lecture entitled the effect of petroleum hydrocarbons and some heavy metals on the life of some types of minerals in selected stations of the Euphrates River / Dhi Qar) by doctoral student Qasim Muhammad Abdul Hussein The current study was conducted over a whole year The study samples were collected from four stations located on the Euphrates River in the city of Nasiriyah in Dhi Qar Governorate
Objectives of the study
1. Conducting an environmental assessment of the prevalence and presence of the nemes in the Euphrates River at the city of Nasiriyah and measuring some physical and chemical properties such as water and air temperature, pH, salinity, electrical conductivity values, changes in dissolved oxygen values ​​and vital oxygen requirement
2. Measuring seasonal and site changes in the concentrations of total petroleum hydrocarbons (TPHs) in water and sediments and their bioaccumulation in two species of Bellamya bengalensis and Psudodontopsis euphraticus.
3. Measuring seasonal and site changes in the concentrations of a group of heavy elements in water and sediments in the study stations and their bioaccumulation of the two types of alkalis above.
4. Estimating the effect of pollution on the density and presence of the Nemata Division in the study area.
5. Measuring the concentrations of ten elements in the water and sediments of the Euphrates River, as well as their bioaccumulation in the two types of the above. .
 2- It was found that the Euphrates River has a high density of the soft palms, most of which belong to the type of ventral foot and some of the others belong to the type of bivalve.
 3- The concentration of heavy elements and total petroleum hydrocarbons was similar in both types of the studied organisms, and P.euphraticus oysters were more likely to accumulate these pollutants compared to B. bengalensis.
4- The study recorded a variation in the concentrations of heavy elements in the stations and seasons of the study and the arrangement was as follows: - sediments <clams> clams> water.
5- Both types of biology can be adopted as vital indicators for controlling pollution with hydrocarbons and heavy elements in the aquatic environment.
6 - Increasing the concentrations of some heavy elements in the water environment by increasing oil pollution, as a positive significant correlation was found between the concentrations of some of these elements with the concentrations of petroleum hydrocarbons.
7 - The study showed that the concentration of petroleum hydrocarbons increases in the revival of the study by increasing the amount of fats due to the presence of a positive relationship between them.