Abstract
Monthly variations in Physio-chemical parameters of Al-Garraf, one of the main tributaries of the Tigris river were investigated from October 2012 to April 2013. The study location situated in the south-eastern sector of Iraq and surrounded by wide and fertile agricultural lands. Three stations were selected to. The former is located at 2 km of AL-Haay City as control. The second is situated at distance 2 km away from the former represented study area and the latter station is located at 4 km apart from the second one. Collecting samples monthly, two samples were taken each month . In the present study fourteen physical and chemical parameters were analyzed based on the importance of these parameters. These Fourteen parameters are ranged as following: air temperature (16 to 32) ºC, water temperature (11 to 26) ºC, pH (7.05to 8.35), E.C. (827 to1558) μS/cm, salinity ( 0.54 to 0.99) ppt, DO (7.04 to 10.38) mg/L , BOD ( 0.90 to 7.01) mg/L ,turbidity (31.0 to 177.0) NTU, TDS (550.78 to 1108) mg/L , TSS (38 to 636.5) mg/L 080, T.H (275 to 500) mg/L , Cl- (89 to 184.6) mg/L, NO3 (5.7 to 15.76) mg/L and PO4 (0.15 to 0.5) mg/L.
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