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Table 3

Two-way ANOVA showing the effect of the main factors (water treatment and season) and their interaction on heavy metals concentrations of raw and treated waters at Kafr El-Shinawy drinking-water treatment plant – Damietta

Variable and treatment of variationdfFPVariable and treatment of variationdfFP
Fe Co 
Water treatment 94848.0 0.000 Water treatment 1366561 0.000 
Season 118.327 0.000 Season 84521.0 0.000 
Water treatment × season 130.171 0.000 Water treatment × season 70721.0 0.000 
Mn Cd 
Water treatment 3910.10 0.000 Water treatment 2726112 0.000 
Season 51.391 0.000 Season 12703.2 0.000 
Water treatment × season 9.1420 0.001 Water treatment × season 12503.2 0.000 
Zn Ni 
Water treatment 41538.8 0.000 Water treatment 84807.7 0.000 
Season 97.835 0.000 Season 2718.66 0.000 
Water treatment × season 365.482 0.000 Water treatment × season 2009.74 0.000 
Cu Pb 
Water treatment 3087049 0.000 Water treatment 2910436 0.000 
Season 135273 0.000 Season 5660.00 0.000 
Water treatment × season 75513.0 0.000 Water treatment × season 6620.00 0.000 
Cr     
Water treatment 15987.0 0.000     
Season 677.667 0.000     
Water treatment × season 197.667 0.000     
Variable and treatment of variationdfFPVariable and treatment of variationdfFP
Fe Co 
Water treatment 94848.0 0.000 Water treatment 1366561 0.000 
Season 118.327 0.000 Season 84521.0 0.000 
Water treatment × season 130.171 0.000 Water treatment × season 70721.0 0.000 
Mn Cd 
Water treatment 3910.10 0.000 Water treatment 2726112 0.000 
Season 51.391 0.000 Season 12703.2 0.000 
Water treatment × season 9.1420 0.001 Water treatment × season 12503.2 0.000 
Zn Ni 
Water treatment 41538.8 0.000 Water treatment 84807.7 0.000 
Season 97.835 0.000 Season 2718.66 0.000 
Water treatment × season 365.482 0.000 Water treatment × season 2009.74 0.000 
Cu Pb 
Water treatment 3087049 0.000 Water treatment 2910436 0.000 
Season 135273 0.000 Season 5660.00 0.000 
Water treatment × season 75513.0 0.000 Water treatment × season 6620.00 0.000 
Cr     
Water treatment 15987.0 0.000     
Season 677.667 0.000     
Water treatment × season 197.667 0.000     
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