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Assessment of Physico-Chemical Parameters of River Ganga at Allahabad With Respect To WQI

Ruby Pandey, Divya Raghuvanshi, D.N Shukla

The present investigation reveals the seasonal changes in concentration of physico-chemical parameters in river Ganga at Allahabad. Water samples under investigations were collected from the different sites viz: Phaphamau, Dashashumedh Ghat & Sangam of Allahabad during summer, monsoon & winter seasons in year 2013-14. The physico-chemical parameter as Temperature, pH , Dissolved Oxygen (DO) , Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD) , Total alkalinity (TA) , Total Hardness (TH) , Total Dissolve Solids (T.D.S) , Turbidity & Chloride were used to analyse the pollution index of river Ganga at selected sites. A correlation matrix test was carried out to check the significant relationship among the physico-chemical parameters (significance level 0.05). Water Quality Index (WQI) was also calculated for all three sampling sites at Allahabad in three seasons. The results revealed that the water quality was severely polluted in monsoon and moderately polluted in winter season.