Environmental Assessment and Hydrochemical Formula for Selected Areas of the Tigris River in Baghdad city, 2017

الملخص

In this research , a study was conducted hydro chemical to six selected areas 0f the Tigris river in Baghdad  city and determine the physical properties which include : hydrogen number (PH) total dissolved solid (TDS) electrical conductivity (EC), and determine the chemical properties which include actions and anions actions include (Ca²⁺ , Mg²⁺ , Na⁺ ,  K⁺ )  Anions (SO₄^-2 , Cl^- , HCO₃^- , NO₃^- ) Collected six water sample from Tigris river in Baghdad city from ( AL-Taji , AL- Kadhimiya , AL-Adhamiyah , Bab Almoadum , AL- Zaafaraniya , gusser Diyala AL-qdyum ) 0n two periods at high water level in the third month and at a low level  at the beginning of the tenth month . the average value of (PH)  is (6.2), the highest value of (PH)about (6.4)in gusser Diyala AL-qdyum area  and the lowest value of (PH)in AL- Kadhimiya area and average value of (TDS)  is (0.522)and average value of (EC)  is (844),   the highest value of (EC)about (895)in Bab Almoadum area  and the lowest value of (EC)about (758)in AL- taji area  According to hydrochemical  formula (Kurlov formula ) the water of Tigris river in studied at the highest (Ca SO₄) and at the lowest (Ca HCO₃) the results of chemical analysis limit from compared with (WHO,2007)and (IQS, 2009) it suitable for human drinking and animals drinking ,building purpose ,and irrigation.