دراسة الخصائص الفيزيائية و الكيمائية لمصادر مياه وادي المرج وتاثيره على مياه نهر الفرات في منطقة هيت

PHYSICAL an‎d CHEMICAL STUDY OF MARIJ VALLEY WATER SOURCE an‎d EFFECT OF EUPHRATES RIVER IN HIT AREA

Abstract: Water samples were collected from nine location , The first one was on the Marij Valley , the second was the valley water flow before the river, The third location was Euphrates River befor the marij vally, The fourth was the point of valley with river confluence, The fifth was of the mix point of unio‎n between he valley with the river, The sixth location was of the end of meting of the valley with river, The seventh was the Euphrates River after the valley, The eighth was the Euphrates River after 100 meter from valley, The ninth location was of the AL-Sehil Aljife spring . All the were in Hit area which beloing Alanbar Gavernorate. The physical and chemical parameters of water measured. The temperature ranged between 20-24.5 C0. , pH was between 6.9-8.2 , electric conductivity was 1255-20000 M siemens / cm, Total souble solids 627-7640 mg / L, dissolved oxygen 0-8.7 mg / L, biological oxygen demand 0-4.2 mg / L, Total hardiness 500-2140 mg / L , Ca 68-408.8 mg / L, Mg 17-279.7 mg / L, Na 44.2-3330.7 mg / L, K 2.2-273.2 mg / L, CL 355-12638 mg / L, SO4 590-3970 mg / L , NO3 3.16-47.95 mg / L . The present study showed that, the pH of the studied area varies fom neutral to weak basic, High conductiviy ( Total salinity ) was observed in addition to increase the concentration of Total Dissolved Solid, Total Hardiness, Calcium, Magnesium, Sodium, Poyassium , Chloride, Sulphate, and Nitrate in the Marge valley, valley water flow before river, Alsihil aljife spring and the first mixing of the valley with river water . Which confirme the effect of that valley on the quality of Euphrates river .