Document Type : Research Paper
Abstract
The Monthly Variation in physio_ chemical parameters of Tigris River water of Salah_Aldin Governate and tow areas Hamraa and are stadied , to investigate the river's water quality ecologically of the October 2018 to March 2019 . The station 1 is 16.214 KM from the governate center and 5.088 KM from the station 2 . The study aimed to measuring values of physical and chemical parameter , The samples were collected monthly . These parameter are ranged as folloing : Air temperature (13_ 29 ) °C , Water temperatures (11_25) °C , PH (6.8_ 8.3 ) , DO ( l.4_2.5 ) mg/l , BOD ( 0.2 _ 2) mg/l , EC (970_1194) ms/cm , TDS ( 979 _ 1196 ) mg/ l , Turbidty ( 8_ 42) NTU , Total
Hardness (168_222) mg/l , Calcium ( 126 _ 170 ) mg /l , magnesium ( 30_ 96) mg/l , Chloride ( 17.75_ 39.05 ) mg/l , sulphate ( 18.98_ 21.81 ) mg/ l , Phosphate ( 23.18 _ 24.34) mg/ l , Silicate ( 2.09 _ 2.53)mg/ l , Nitrite ( 23.84_ 27.88)mg/ l , Nitrate ( 8.13_ 11.72 ) mg/ l . Also the diagnostic of Some types of Algae is conducted study period and their distribution . the Diatoms were at the First order followed by green algae and Cyanophyted. The seconds Station was recorded higher diversity of algae than the first station .
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