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. 2018 Nov 5;15(11):2466. doi: 10.3390/ijerph15112466

Table 5.

Correlation coefficient matrix for each water quality index.

Item pH EC DO BOD TP NO3-N NO2-N NH3-N NTU SS
pH 1.000 0.377 −0.090 0.048 0.587 0.158 −0.507 −0.406 0.100 −0.261
EC 1.000 −0.742 0.084 0.322 0.090 −0.578 −0.481 −0.362 −0.288
DO 1.000 0.112 −0.128 −0.402 0.144 0.077 0.205 0.239
BOD 1.000 0.223 −0.130 −0.546 −0.295 −0.005 −0.383
TP 1.000 0.008 −0.526 −0.465 −0.315 −0.233
NO3-N 1.000 0.188 0.290 0.079 −0.195
NO2-N 1.000 0.792 0.109 0.464
NH3-N 1.000 0.128 0.177
NTU 1.000 0.004
SS 1.000