Evaluation of some heavy metals in well water within Sulaimani City, Kurdistan Region-Iraq

Abstract EN

In the present study, from April to August 2010, twelve sites of groundwater within Sulaimani Governorate (Sharawany, Mama Yara, Peshasazy, Twi Malik, and Ibrahim Pasha) were selected in order to evaluate some physico–chemical characteristics and seasonal analysis (Spring, Summer, and Autumn) for heavy metals (Cr, Zn, Ni, Cd, and Pb).

The results showed the range of studied parameters as following : 19.6 ºc-24.4 ºc for water temperature.

pH value of the study sites range from 7.14-8.48 and 201, 50-943 μs.cm-1 for Electrical conductivity.

Heavy metals content of Chrome (Cr), Zinc (Zn), Nickel (Ni), Cadmium (Cd), and Lead (Pb) for each seasons (Spring, Summer and Autumn) in groundwater determined, Chrome concentration in water samples were 0–0.002 mg.l-1, 0–0.003 mg.l-1 and 0–0.002 mg.l-1 for all seasons respectively.

On the other hand Zinc was ranged in water samples during Spring, Summer, and Autumn from 0–3.759 mg.l-1, 0 - 1.887 mg.l-1 0–0.026 mg.l-1 respectively.

While Nickel concentration was ranged between 0–0.002 mg.l-1 in Spring, 0-0.004 mg.l-1 in summer below detectable level (BDL) in Autumn.

Cadmium in the water samples ranged between 0–0.001 mg.l-1 for all seasons.

Lead is the other metal was determined in groundwater, it was below detectable level (BDL) during Spring, and 0 0.001 mg.l-1, 0 0.007 mg.l-1 for Summer and Autumn respectively.