Research Article

Bacteriological and Physicochemical Studies on Tigris River Near the Water Purification Stations within Baghdad Province

Table 1

Confidence limit of GLM of all the variables studied with respect to seasons, months, stations, and replicate samples.

Variables studiedSOV Squared
Corrected ModelInterceptSeasonMonthStationREP

Salinity (mg/L) of water of 3 stations 0.00 0.00 0.00 0.000.010.74
TDS (mg/L) of water of 3 stations 0.00 0.00 0.00 0.000.000.080.74
EC (microsemens) of water of 3 stations 0.00 0.00 0.00 0.000.010.530.77
Turbidity NTU of water of 3 stations 0.00 0.00 0.00 0.000.000.430.41
pH of water of 3 stations 0.01 0.000.150.340.000.530.22
No. of Pseudomonas aeruginosa/100 mL of water of 3 stations 0.41 0.000.430.590.080.850.59
No. of E. coli/100 mL of water of 3 stations 0.00 0.00 0.000.010.960.570.59
Total coliform/100 mL of water of 3 stations 0.00 0.00 0.000.010.960.570.71
Total number of bacteria of water of 3 stations 0.00 0.00 0.000.000.220.260.59
Temperature °C of water of 3 stations 0.00 0.00 0.00 0.000.010.810.99
Temperature °C of air 0.00 0.00 0.00 0.000.160.98
Temperature °C of water of Tigris River 0.00 0.000.00 0.000.340.99
BOD mg/L of water of Tigris River 0.01 0.000.030.040.050.970.40
DO mg/L of water of Tigris River 0.00 0.00 0.000.000.010.910.79
Salinity (mg/L) of water of Tigris River 0.00 0.00 0.00 0.000.000.690.67
TDS (mg/L) of water of Tigris River 0.00 0.00 0.00 0.000.210.570.57
EC (microsiemens) of water of Tigris River 0.00 0.00 0.00 0.000.000.520.61
turbidity NTU of water of Tigris River 0.00 0.00 0.000.700.000.470.50
pH of water of Tigris River 0.01 0.000.010.020.180.300.42
No. of Pseudomonas aeruginosa/100 mL of water of Tigris River 0.00 0.000.010.060.010.300.46
No. of E. coli/100 mL of water of Tigris River 0.00 0.000.000.020.000.780.55
Total no. of coliform/100 mL of water of Tigris River 0.00 0.000.000.050.000.970.57
Total no. of bacteria/100 mL of water of Tigris River 0.00 0.000.000.010.000.940.78