A study of Irrigation Water Pollution by Some Heavy Metals in Baghdad Governorate

Abstract

A study of irrigation water was conducted Baghdad city to find out extent of its pollution by some heavy metals (Pb, Cd, Ni, Co, CU, Cr, Zn and Fe). Water samples were collected randomly from different sources (river, well and stream). Results showed that the concentration of studied heavy metals were as follows: Lead between 0.43-11.75 mg L-1, Cadmium between 0.01-0.95 mg L-1, Nickel between 0.008-0.46 mg L-1, Cobalt between Nil-0.185 mg L-1, Copper is between 0.326-1.58 mg L-1, Chromium is between Nil-0.068 mg L-1, Zinc 0.398-1.182 mg L-1, as for Iron between 0.794-3.253 mg L-1, and high concentrations of heavy metals were in all samples, The most sites were higher than a critical limits permitted by the International Food and Agriculture Organization.