Estimation of Some Heavy Metals in The Water Estuaries of The Tigris River in Mosul City

The present study involves an assessment of pollution through the impact of heavy metals in the waters of the 17 July estuaries, the Industrial zone on the left, Muthanna coasts, and the Nineveh Bridge of the Tigris River in Mosul city during October 2023 .Five samples were collected for each downstream; then, we calculated the average. The samples were used in the analysis of heavy metals elements Lead (Pb), Iron (Fe), Copper (Cu), Zinc (Zn), and Cobalt (Co). The results of the analysis showed the values of zinc concentrations ranging in the current study models (0.08-0.13 ppm) and they are within the permissible limits. Also, the values of copper concentrations ranged (0.028-0.166 ppm) and are within the permissible limits. Cobalt concentrations ranged from (0.61-0.91 ppm) and are outside the permissible limits. The values of iron concentrations ranged (0.29-0.41 ppm) and are within the permissible limits. As for the values of lead concentrations, the highest values were recorded in all regions, ranging from (0.49-0.93 ppm) and are outside the permissible limits. The values of the pH function ranged (6.74-7.12) and are within the permissible limits. The electrical conductivity values were very high, ranging from (690000-963000 S.cm-1), which are outside the permissible limits.