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. 2020 Sep 16;20:101164. doi: 10.1016/j.eti.2020.101164

Table 2.

Statistical summary of physiochemical parameters in the river Ganga during January 1989 to January 2016.

DO pH EC BOD TA F B Ca Mg Cl SO4 Na K NO2+NO3 WT
S1 Overall mean 8.24 7.95 145.55 1.21 55.42 0.53 0.09 18.36 12.12 8.27 8.08 2.31 0.93 0.21 11.30
Median 8.13 8.00 136.00 1.20 56.00 0.28 0.07 18.92 12.51 8.00 6.48 1.38 0.39 0.17 11.55
Kurtosis 1.85 7.63 0.99 13.92 −0.11 3.98 18.57 −0.14 0.18 1.72 5.52 21.64 3.85 48.65 −0.41
Skewness 0.44 −1.81 1.08 3.07 −0.39 2.07 3.85 −0.10 −0.42 0.91 2.22 3.54 2.29 4.91 −0.29
SD 0.73 0.07 1201.25 0.04 121.68 0.40 0.02 31.50 16.23 7.85 31.28 5.44 2.34 0.06 7.23
z value −0.07 −0.04 0.00 0.34 −0.01 −0.04 0.07 0.00 0.00 −0.03 −0.01 0.02 −0.04 0.22 0.01
P(Z<=z) one-tail 0.47 0.48 0.50 0.37 0.50 0.49 0.47 0.50 0.50 0.49 0.50 0.49 0.49 0.41 0.50
S2 Overall mean 8.52 7.96 156.32 1.22 57.17 0.61 0.05 18.68 12.99 8.24 6.36 1.76 0.44 0.23 14.18
Median 8.44 8.02 142.00 1.18 60.00 0.28 0.01 19.00 12.54 8.16 6.48 1.38 0.39 0.18 15.00
Kurtosis 1.08 2.94 11.87 79.98 0.68 2.61 61.33 −0.35 −0.71 0.01 0.72 11.73 16.28 −0.65 0.68
Skewness 0.11 −1.26 3.07 7.23 −0.53 1.80 7.13 −0.11 0.22 0.26 0.02 2.15 2.53 0.43 −0.94
SD 0.47 0.07 2633.20 0.06 114.78 0.51 0.12 29.31 9.93 5.89 5.91 1.10 0.11 0.03 9.16
z value −0.11 0.16 0.00 0.26 0.00 0.05 0.07 0.00 −0.03 −0.01 0.02 −0.01 −0.15 −0.09 0.00
P(Z<=z) one-tail 0.46 0.44 0.50 0.40 0.50 0.48 0.47 0.50 0.49 0.50 0.49 0.50 0.44 0.46 0.50
S3 Overall mean 8.07 7.98 166.57 1.20 57.81 0.54 0.07 19.11 12.51 8.17 7.93 2.38 0.92 0.20 13.81
Median 8.00 8.02 154.00 1.18 56.00 0.25 0.07 19.00 12.54 8.00 6.70 1.38 0.39 0.15 15.00
Kurtosis 0.67 12.20 14.89 18.51 5.95 142.80 4.76 −0.09 0.41 1.92 4.48 5.84 5.47 0.66 −0.37
Skewness 0.58 −2.33 3.30 3.53 0.90 10.29 1.72 0.18 −0.38 0.97 2.11 2.35 2.58 0.82 −0.67
SD 0.99 0.06 3495.98 0.05 13.37 1.15 0.01 30.68 15.50 7.29 29.30 5.78 2.44 0.03 10.88
z value −0.02 0.28 0.00 0.28 −0.01 −0.06 0.29 −0.01 −0.02 −0.01 0.00 0.01 −0.05 0.04 −0.02
P(Z< = z) one-tail 0.49 0.39 0.50 0.39 0.50 0.48 0.39 0.50 0.49 0.50 0.50 0.50 0.48 0.49 0.49
S4 Overall mean 8.00 7.97 156.19 1.23 56.87 0.47 0.07 19.65 12.44 7.86 7.82 2.46 0.91 0.20 15.32
Median 8.00 8.01 146.00 1.18 59.84 0.21 0.05 18.92 12.54 7.99 6.48 1.31 0.39 0.15 16.00
Kurtosis −0.04 11.92 0.11 26.84 0.22 2.34 20.35 54.55 18.39 2.68 6.26 12.06 4.48 1.20 0.08
Skewness −0.07 −1.47 0.83 4.68 −0.65 1.78 3.37 6.33 2.00 0.96 2.32 3.16 2.35 1.07 −0.25
SD 0.70 0.10 1300.00 0.87 156.64 0.36 0.01 111.23 21.16 8.00 6.48 8.20 2.30 0.04 9.40
z value −0.07 −0.23 0.00 0.05 0.00 −0.07 −0.45 0.01 0.02 0.01 0.01 0.03 0.06 −0.35 0.09
P(Z< = z) one-tail 0.47 0.41 0.50 0.48 0.50 0.47 0.33 0.50 0.49 0.50 0.50 0.49 0.48 0.36 0.46
S5 Overall mean 7.40 8.05 177.08 1.40 61.32 0.50 0.06 24.02 13.30 9.14 8.89 2.85 0.99 0.27 15.93
Median 7.15 8.08 176.00 1.18 64.00 0.25 0.05 20.64 13.58 9.00 7.60 2.00 0.40 0.22 16.50
Kurtosis −0.14 11.57 1.13 310.58 1.17 2.57 4.25 17.00 −0.26 15.71 5.47 6.42 6.01 −0.02 −0.51
Skewness 0.24 0.75 0.72 17.47 −0.31 1.82 1.45 4.05 −0.10 2.37 2.20 2.47 2.61 0.58 −0.36
SD 1.15 0.07 1636.80 7.51 247.90 0.36 0.00 415.60 19.90 12.90 32.26 7.78 2.15 0.03 12.37
z value 0.04 0.22 0.00 −0.03 0.03 0.02 0.53 0.00 −0.02 0.00 0.01 0.00 −1179.76 0.02 −0.01
P(Z< = z) one-tail 0.49 0.41 0.50 0.49 0.49 0.49 0.30 0.50 0.49 0.50 0.49 0.50 0.00 0.49 0.50

SD: Standard deviation; all the WQ values has been given in mg/L except pH (unit less), EC (μS/cm) and WT (oC).