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Table 3 Statistical analysis of physicochemical parameters in water around the study area

From: An application of Water Quality Index (WQI) and multivariate statistics to evaluate the water quality around Maddhapara Granite Mining Industrial Area, Dinajpur, Bangladesh

  Min. Max. Mean Median Std. deviation Variance WHO (2011)
PH 5.3 9.02 7.49 7.46 0.71 0.51 6.5–8.5
EC 41 587 147.2 112.4 113.65 12,915.95 500
Turbidity 3 45 10.74 7.00 10.69 114.33 <5
TA 5 88 29 19 22.19 492.4
TH 2.5 87.5 22.74 15.5 20.44 417.81 100
TDS 24 382 103.9 84.3 74.05 5483.33 500
Soluble silica 11.9 53.8 28.82 32 9.9 98.08