This study aims to investigate heavy metals (HMs)pollution in the ‘Euphrates’ river which is located from Al-Kifl city to Kufa city, in Iraq. We analyzed six heavy metal parameters (Cd, Pb, Zn, Cr, Fe, and Mn ) in water, every month several samples were taken from six sites on the Euphrates river and covered the period of time from July 2020 to January 2021. Heavy metal analysis results were assessment according to the values of the maximum given in Water Quality Regulation. The obtained outcome of the analysis revealed that cadmium values surpassed the limit values for sites 1 and 5. The overall pollution level of the HMs pollution index model appeared to be helpful to Evaluate with respect to HMs and the values were found higher than the critical pollution index is100 in site 1.

Soil and plant contamination with heavy metals is one of the current problems in the world especially contamination with mercury. Heavy metals are very harmful because of their long biological half-lives, non-biodegradable nature and their possibility to accumulate at different body parts.  Soil, well water and leafy plant samples (Apium graveoleus, Allium ampeloprasum, Lepidium sativum, Eruca sativa,  Petroselinum hortense, Ocimum basilicum , Mentha pulegium) from three different agricultural fields (AL-Musafer village (site 1), AL-Autaifiyah (site 2) and AL-Huriyah (site 3)) in Baghdad government, Iraq were analyzed for mercury concentration. Hg level in soil samples ranged from 3.67 to 5.33 ppm in AL-Autaifiyah and AL-Musafer village, respectively. While, in water samples Hg level ranged from 1.2 in AL-Autaifiyah to 22.8 mg/l in AL-Musafer village. Plant samples recorded Hg level ranged from 0.009 to 2.88 ppm in AL-Autaifiyah and AL-Huriyah, respectively. The results showed that Hg level in water samples and most plant samples were above the acceptable limit according to WHO (1993), and FAQ/WHO (1999) respectively. While Hg level in soil samples was within the acceptable limit put by Ministry of the Environment, Finland (2007).