The chemical pollutants (aromatic compounds and heavy metals) in the waters of the Tigris River were studied for the two sites of the Dora power station and the site of the vegetable oil plant during the summer season of 2021. The study included measuring some physical and chemical properties such as (acid function, temperature, turbidity, total dissolved salts, magnesium, calcium, chloride and potassium and sodium and determination of heavy metals such as (lead, cadmium) and the results were (0.06 ppm lead at the cycle electricity site, 0.04 ppm lead in the vegetable oil site), (0.1 ppm cadmium at the cycle electricity site, 0.1 ppm cadmium at the vegetable oil site), the aromatic compounds of the river water were estimated, and the heavy elements of soil and plants (lead, cadmium) were estimated. The results indicated that the water quality was low in salinity and low in soda, and the results of soil tests showed that the concentrations of lead and cadmium elements were (61.75 ppm lead at the Dora electricity site, 55.11 ppm for lead in the vegetable oil site), and it was (14.45 ppm cadmium at the Dora electricity site)., 13.75 ppm for cadmium in the vegetable oil site) and thus exceeded the permissible limits of the specifications of the World Health Organization (WHO, 2003). vegetable oils site, exceeding the permissible limits of the Food and Health Organization (2007, WHO/FAO) standard of mg kg-1 dry matter. The study showed the presence of some aromatic hydrocarbon compounds in the water of the Tigris River for the two study sites, through the technique of Coupled Gas Chromatography-Mass Spectrometry (GS-MS), and the results of the examination recorded the presence of different concentrations, where the concentration of naphthalene compound reached 35 ppm and benzo compound ( ghi) perylene concentration reached 70 ppm for water, which indicates the pollution of river water, which is deposited and remains at the bottom of the river by the effect of sewage, wastes of stations and oil installations, and waste of laboratories.