Study of some physical and chemical parameters in euphrates river in samawah city, iraq

In order to study the monthly variations in the physiochemical parameters of Euphrates river in Samawah city samples were collected in each month from January to July 2019. The results of water properties showed that water temperature ranged between (13C -31.7C), pH values (6.7-7.9), electrical conductivity (EC), salinity and total Dissolved solids(TDS) (1290-4260) μS/cm, (0.8256-2.7264)%, (910 2130) mg/l respectively.ms.cm-1, turbidity (Tur) (6.42 47.73) NTU, secchi depth (SD) (0.342.65) m, dissolved oxygen (DO) (4.8-13) mg/l,Biological oxygen demand (1-15) mg/l, total alkalinity (140-190) mg.CaCO3.l -1, total hardness (TH) (250-500) mg.CaCO3.l -1, calcium(Ca+) and magnesium (Mg+) ions (12.024-96.192)and (38.82 – 92.294)mg/ l, respectively, nitrate (NO3), nitrite (NO2) values (0.088-3.054) and (1.8429.008) mg/l respectively, while phosphate (PO4) and total phosphor (TP) (0.09 -0.797) and (0.068-0.486) mg/l, respectively, Silicate values (1.466-3.95) mg/l. Statistical analysis showed significant differences (p<0.05) between study sites and month period from march to July.