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Table 1 Quantitative enumeration and density estimation of enterococci in surface water samples (n = 15) collected from sites (n = 5) located on river Ganga (Kanpur city) in up-to-down-gradient fashion

From: Enterococci in river Ganga surface waters: Propensity of species distribution, dissemination of antimicrobial-resistance and virulence-markers among species along landscape

Sampling Site CFU/100 ml water
[Median (Range)]
MPN index/100 ml water (Lower 95% CI – Upper 95% CI)a p-Valueb
Site 1 32 (23 – 44) 30 (10 – 110)  
Site 2 1130 (1034 – 1211) 220 (100 – 580)  
Site 3 73000 (67532 – 76848) 350 (160 – 820) < 0.0001***
Site 4 48000 (43978 – 51078) 300 (100 – 1300)  
Site 5 820000 (782841 – 871978) 1600 (600 – 5300)  
Controlc ND ND  
  1. aLower 95% CI – Upper 95% CI are adopted from Table 9221.IV, Section 9221C. Estimation of Bacterial density, APHA (1998). bp-Value was calculated using chi square test for trend, χ2 = 1900; df = 1. cSterile Milli Q water used as control. ***Statistically significant at alpha < 0.05.
  2. Abbreviations: ND, Not Detected.