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. 2021 Nov 10;8(1):3. doi: 10.1007/s40899-021-00592-y

Table 7.

Spearman’s rank-order correlation of selected parameters [parameters include physicochemical parameters (pH, temperature (T °C), electrical conductivity (EC), dissolved oxygen (O2) and soluble ions (Na+, K+, PO43+, SO42−, NO3 and NO2) and faecal indicator bacteria (FIB): Escherichia coli (E. coli), Enterococcus (ENT), and Total Coliforms (TC). Significant coefficients (P < 0.05) are in bold] in water from wells analysed in rainy season

T (°C) pH EC O2 Na+ K+ PO43+ SO42− NO3 NO2 E. coli ENT TC
T (°C) − 0.102 − 0.020 0.518 − 0.130 − 0.620 − 0.090 − 0.186 0.103 0.175 0.077 0.125 − 0.166
pH − 0.399 − 0.427 − 0.332 − 0.321 0.332 0.270 0.322 0.670 − 0.007 − 0.139 0.206
EC 0.555 0.388 0.388 − 0.180 0.001 − 0.354 − 0.259 0.005 − 0.046 − 0.083
O2 0.362 − 0.221 − 0.052 0.064 − 0.196 − 0.127 − 0.134 − 0.120 − 0.148
Na+ 0.159 0.267 0.318 − 0.557 − 0.464 − 0.210 − 0.153 − 0.384
K+ − 0.341 − 0.231 − 0.247 − 0.459 − 0.045 − 0.092 0.180
PO43+ 0.6131 0.113 0.318 − 0.067 − 0.070 − 0.070
SO42− − 0.005 0.147 − 0.177 − 0.191 − 0.014
NO3 0.706 0.450 0.451 0.679
NO2 0.122 0.039 0.369
E. coli 0.880 0.602
ENT 0.705